Home » Public Forums » GMCnet » [GMCnet] Bringing Onan back to life due to impending hurricane
| [GMCnet] Bringing Onan back to life due to impending hurricane [message #181975] |
Mon, 27 August 2012 12:06  |
Robin Hood
Messages: 1078
Registered: April 2011
Karma: 3
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Senior Member |
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This thing may have run when parked. Mom's generator that runs her
little air conditioner during power outages has succumbed to the
ethanol, and even if Isaac misses us, I need to get at least ONE of
the coaches into a functional lifeboat.
See my youtube video www.youtube.com/watch?v=EvJebex2O_M to see what
I'm dealing with.
What do I need to do to even TEST this thing? I put a battery charger
box on it, and it managed to grind over a couple of times. So, squirt
motor oil (some, not a bunch) into the cylinders through the plug
holes, right? Get a starter battery with terminals and wire them up to
the proper wires on the Onan?
What do I do about the fuel line? Does it need an electric fuel pump?
Does it gravity feed?
I've heard these things are very sturdy, not unlike a good lawn mower.
The good news is that it's never had E10 gas in it. But... sitting
unused for 20 years, is it an almost certainty that major rebuilding
of major companents is going to be a necessity? Maybe the best thing I
can do is not waste time with it until after the hurricane has passed?
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #181978 is a reply to message #181975] |
Mon, 27 August 2012 12:28  |
Robin Hood
Messages: 1078
Registered: April 2011
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I checked out http://www.gmccoop.com/wake_up_your_onan.htm but i don't
see any pictures. :( Other than that, it looks like just the resources
that I need.
On 8/27/12, Robin Hood <loxley@gmail.com> wrote:
> This thing may have run when parked. Mom's generator that runs her
> little air conditioner during power outages has succumbed to the
> ethanol, and even if Isaac misses us, I need to get at least ONE of
> the coaches into a functional lifeboat.
>
> See my youtube video www.youtube.com/watch?v=EvJebex2O_M to see what
> I'm dealing with.
>
> What do I need to do to even TEST this thing? I put a battery charger
> box on it, and it managed to grind over a couple of times. So, squirt
> motor oil (some, not a bunch) into the cylinders through the plug
> holes, right? Get a starter battery with terminals and wire them up to
> the proper wires on the Onan?
>
> What do I do about the fuel line? Does it need an electric fuel pump?
> Does it gravity feed?
>
> I've heard these things are very sturdy, not unlike a good lawn mower.
>
> The good news is that it's never had E10 gas in it. But... sitting
> unused for 20 years, is it an almost certainty that major rebuilding
> of major companents is going to be a necessity? Maybe the best thing I
> can do is not waste time with it until after the hurricane has passed?
>
>
>
> --
> Robin Hood
> Jackson, MS
> 2003 Buick Lesabre
> 1968 Pontiac Catalina
> 1978 GMC Royale motorhome
> 1977 GMC Palm Beach motorhome
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #181980 is a reply to message #181975] |
Mon, 27 August 2012 12:58 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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If our power was flakey, or we had weather events that knocked it out I'd get a generator that runs on propane or natural gas. I understand they are much more reliable.
For the ONAN -since you have it out of the coach - I'd put new fuel hose on, change the oil, connect a battery, squirt oil in the plug holes and crank it a few times with the plugs out, then button it up, dip the fuel line in a gas can an try it. There are people who are lucky.
Be careful of the A/C wires. The can bite you.
It's a simple motor. Likely problems are the fuel pump and carb.
Larry Davick
On Aug 27, 2012, at 10:06 AM, Robin Hood <loxley@gmail.com> wrote:
> This thing may have run when parked. Mom's generator that runs her
> little air conditioner during power outages has succumbed to the
> ethanol, and even if Isaac misses us, I need to get at least ONE of
> the coaches into a functional lifeboat.
>
> See my youtube video www.youtube.com/watch?v=EvJebex2O_M to see what
> I'm dealing with.
>
> What do I need to do to even TEST this thing? I put a battery charger
> box on it, and it managed to grind over a couple of times. So, squirt
> motor oil (some, not a bunch) into the cylinders through the plug
> holes, right? Get a starter battery with terminals and wire them up to
> the proper wires on the Onan?
>
> What do I do about the fuel line? Does it need an electric fuel pump?
> Does it gravity feed?
>
> I've heard these things are very sturdy, not unlike a good lawn mower.
>
> The good news is that it's never had E10 gas in it. But... sitting
> unused for 20 years, is it an almost certainty that major rebuilding
> of major companents is going to be a necessity? Maybe the best thing I
> can do is not waste time with it until after the hurricane has passed?
>
>
>
> --
> Robin Hood
> Jackson, MS
> 2003 Buick Lesabre
> 1968 Pontiac Catalina
> 1978 GMC Royale motorhome
> 1977 GMC Palm Beach motorhome
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #181984 is a reply to message #181982] |
Mon, 27 August 2012 13:43 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| Robin Hood wrote on Mon, 27 August 2012 11:07 |
Yeah, about the whole "points" thing... uh, that stuff is kind of
1800s clockworkery to me.  I changed out the points to a Pertronix
in my 68 Pontiac. I have no idea what it means to clean and adjust
points. Let me try the other stuff first and then I can work my way
up to the distributor. ...
|
After looking at your vid, for the second time... I did when you posted it:
It needs a muffler and something to hold the generator.
I strapped my 6K to a cart with some blocks of wood at ran it like that for trouble shooting. The only issue I had was one of the wood blocks, used to keep the generator level, was touching the exhaust down pipe and started to smolder. It was close to flames when I found it.
To connect the AC power: The "hot" side of the power can be found at the circuit breaker. The other wire coming out of the generator bell is the neutral and ground. Both are connected together and to this one wire. (This is almost the only place you do do this.) If you do not understand what I am saying find someone who does. A mistake here can kill someone.
I am not sure of the best solution for your muffler.
OBTW: It doesn't have a distributor. But, with the generator out, it isn't that hard to adjust the points. Installed... a bear!
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #181985 is a reply to message #181975] |
Mon, 27 August 2012 13:45 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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points are nothing to be afraid of. they need to be filed/cleaned where the points come together. and they need to have a gap of a certain spec at their most open point in the rotation of the engine. usually just a matchbook cover they say. they have to open and close as the engine rotates. and have good clean connection when they do close.
there is some fine tuning one can do from there. but an engine should run with the points cleaned and set like above.
I have gotten many a VW engine running great. again by just a quick filing of the points. just think of them having a bad connection. usually after someone has been messing with the carb trying to get the engine to run smooth.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #181991 is a reply to message #181982] |
Mon, 27 August 2012 14:21 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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The ignition system is pretty simple compared to the labyrinth of a carberator. Most of the magic happens in the coil - everything else is wires and current. The points are simply an on/off switch to allow electricity to flow to the coil.
The coil has two completely separate circuits - the primary and secondary, but I always confuse the two. One (primary?) is a coil of wire spun around and around an iron core (secondary?) circuit. When the points close 12 volts are connected to the primary coil. This creates a magnetic field about the secondary circuit When the points open magic happens. The magnetic field collapses and ZAP! a bolt of juice comes out looking for ground.
So for the spark to occur when the piston is at the right place the points are connected to the crankshaft (ultimately) and they rub against a cam that opens and closes them at the right time. ZAP ZAP ZAP ZAP each rotation of the crank. Remember, the points are a pretty dumb mechanism - on (closed) (electricity goes to coil) - off (open) (all hell breaks loose and a jolt of electricity is looking for ground to complete its circuit).
On the 455 the spark goes to the middle of the distributor - hits the rotor - and the spark continues on to wherever the rotor is pointed. The spark is "distributed". On the ONAN there is no distributor since the coil has two spark plug wires attached to it. Each cylinder gets a spark with every rotation of the crank. The cylinder that is on its exhaust stroke simply "wastes" it's spark.
The art of ignition systems is in the timing. With points the amount of time they are closed (dwell), saturating the coil with electricity, matters. This is because it effects the timing of when they open. When the ope the spark happen. That's important.
There's my nickel tour relating as much as I could remember from high school auto shop.
If you can pass the bar you can tune an ONAN.
Larry Davick
On Aug 27, 2012, at 11:07 AM, Robin Hood <loxley@gmail.com> wrote:
> Yeah, about the whole "points" thing... uh, that stuff is kind of
> 1800s clockworkery to me. :) I changed out the points to a Pertronix
> in my 68 Pontiac. I have no idea what it means to clean and adjust
> points. :) Let me try the other stuff first and then I can work my way
> up to the distributor.
>
> I really REALLY need to take a junior college class in automechanics...
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182007 is a reply to message #181982] |
Mon, 27 August 2012 17:38 |
mickeysss
Messages: 1476
Registered: January 2012
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Senior Member |
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the best way to do the points first is get some sand paper and just but it between the points and lightly move it back and forth
on both sides that should get them working from rust and it worked on my old honda a all the time.. do not loosen the points to do it.
if it ran when it stopped it is already in place, just get the rust off the faces of the points with sand paper.
warm regards:
mickey
77 palm beach
anaheim ca.
On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
> Yeah, about the whole "points" thing... uh, that stuff is kind of
> 1800s clockworkery to me. :) I changed out the points to a Pertronix
> in my 68 Pontiac. I have no idea what it means to clean and adjust
> points. :) Let me try the other stuff first and then I can work my way
> up to the distributor.
>
> I really REALLY need to take a junior college class in automechanics...
>
> On 8/27/12, Jon Roche <lqqkatjon@gmail.com> wrote:
>>
>>
>> here is the link to the step by step onan trouble shooting.
>>
>> http://gmcmotorhome.info/generator.html
>>
>> make sure it has enough oil in it. top off the oil.
>>
>> if it has points(probably does). clean the points and re-adjust.
>>
>>
>> --
>> 75 palm beach
>> St. Cloud, MN
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
> --
> Robin Hood
> Jackson, MS
> 2003 Buick Lesabre
> 1968 Pontiac Catalina
> 1978 GMC Royale motorhome
> 1977 GMC Palm Beach motorhome
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182014 is a reply to message #182007] |
Mon, 27 August 2012 19:01 |
Robin Hood
Messages: 1078
Registered: April 2011
Karma: 3
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Senior Member |
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Where us thus jumper and pin business located? I see a start button but
nothing eke I recognize as pins or jumpers in this context.
Is the spark plug a 13/16 size?
I bought a lawn implement battery.
On Monday, August 27, 2012, Mickey Space Ship Shuttle wrote:
>
> the best way to do the points first is get some sand paper and just but it
> between the points and lightly move it back and forth
>
> on both sides that should get them working from rust and it worked on my
> old honda a all the time.. do not loosen the points to do it.
>
> if it ran when it stopped it is already in place, just get the rust off
> the faces of the points with sand paper.
>
> warm regards:
>
> mickey
> 77 palm beach
> anaheim ca.
>
>
> On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
>
> > Yeah, about the whole "points" thing... uh, that stuff is kind of
> > 1800s clockworkery to me. :) I changed out the points to a Pertronix
> > in my 68 Pontiac. I have no idea what it means to clean and adjust
> > points. :) Let me try the other stuff first and then I can work my way
> > up to the distributor.
> >
> > I really REALLY need to take a junior college class in automechanics...
> >
> > On 8/27/12, Jon Roche <lqqkatjon@gmail.com <javascript:;>> wrote:
> >>
> >>
> >> here is the link to the step by step onan trouble shooting.
> >>
> >> http://gmcmotorhome.info/generator.html
> >>
> >> make sure it has enough oil in it. top off the oil.
> >>
> >> if it has points(probably does). clean the points and re-adjust.
> >>
> >>
> >> --
> >> 75 palm beach
> >> St. Cloud, MN
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>
> >
> >
> > --
> > Robin Hood
> > Jackson, MS
> > 2003 Buick Lesabre
> > 1968 Pontiac Catalina
> > 1978 GMC Royale motorhome
> > 1977 GMC Palm Beach motorhome
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182017 is a reply to message #182014] |
Mon, 27 August 2012 19:50 |
Robin Hood
Messages: 1078
Registered: April 2011
Karma: 3
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Senior Member |
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Ok. A glob of 10w30 went into each cylinder through the plug holes (which
did turn out to be 13/16). The lawn battery turned it over nicely, but I
got no suction from the fuel line. I took video but that's the gist.
Advice?
On Monday, August 27, 2012, Robin Hood wrote:
> Where us thus jumper and pin business located? I see a start button but
> nothing eke I recognize as pins or jumpers in this context.
>
> Is the spark plug a 13/16 size?
>
> I bought a lawn implement battery.
>
> On Monday, August 27, 2012, Mickey Space Ship Shuttle wrote:
>
>>
>> the best way to do the points first is get some sand paper and just but
>> it between the points and lightly move it back and forth
>>
>> on both sides that should get them working from rust and it worked on my
>> old honda a all the time.. do not loosen the points to do it.
>>
>> if it ran when it stopped it is already in place, just get the rust off
>> the faces of the points with sand paper.
>>
>> warm regards:
>>
>> mickey
>> 77 palm beach
>> anaheim ca.
>>
>>
>> On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
>>
>> > Yeah, about the whole "points" thing... uh, that stuff is kind of
>> > 1800s clockworkery to me. :) I changed out the points to a Pertronix
>> > in my 68 Pontiac. I have no idea what it means to clean and adjust
>> > points. :) Let me try the other stuff first and then I can work my way
>> > up to the distributor.
>> >
>> > I really REALLY need to take a junior college class in automechanics...
>> >
>> > On 8/27/12, Jon Roche <lqqkatjon@gmail.com> wrote:
>> >>
>> >>
>> >> here is the link to the step by step onan trouble shooting.
>> >>
>> >> http://gmcmotorhome.info/generator.html
>> >>
>> >> make sure it has enough oil in it. top off the oil.
>> >>
>> >> if it has points(probably does). clean the points and re-adjust.
>> >>
>> >>
>> >> --
>> >> 75 palm beach
>> >> St. Cloud, MN
>> >> _______________________________________________
>> >> GMCnet mailing list
>> >> Unsubscribe or Change List Options:
>> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> >>
>> >
>> >
>> > --
>> > Robin Hood
>> > Jackson, MS
>> > 2003 Buick Lesabre
>> > 1968 Pontiac Catalina
>> > 1978 GMC Royale motorhome
>> > 1977 GMC Palm Beach motorhome
>> > _______________________________________________
>> > GMCnet mailing list
>> > Unsubscribe or Change List Options:
>> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
> --
> Robin Hood
> Jackson, MS
> 2003 Buick Lesabre
> 1968 Pontiac Catalina
> 1978 GMC Royale motorhome
> 1977 GMC Palm Beach motorhome
>
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182019 is a reply to message #182017] |
Mon, 27 August 2012 20:07 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Do you have fuel to the carb? If not that is where I would look
first. You need the fuel pump as gravity feed does not work well.
Does the carb have fuel in it? It might be full of junk too.
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Aug 27, 2012, at 8:50 PM, Robin Hood wrote:
> Ok. A glob of 10w30 went into each cylinder through the plug holes
> (which
> did turn out to be 13/16). The lawn battery turned it over nicely,
> but I
> got no suction from the fuel line. I took video but that's the gist.
>
> Advice?
>
> On Monday, August 27, 2012, Robin Hood wrote:
>
>> Where us thus jumper and pin business located? I see a start button
>> but
>> nothing eke I recognize as pins or jumpers in this context.
>>
>> Is the spark plug a 13/16 size?
>>
>> I bought a lawn implement battery.
>>
>> On Monday, August 27, 2012, Mickey Space Ship Shuttle wrote:
>>
>>>
>>> the best way to do the points first is get some sand paper and
>>> just but
>>> it between the points and lightly move it back and forth
>>>
>>> on both sides that should get them working from rust and it worked
>>> on my
>>> old honda a all the time.. do not loosen the points to do it.
>>>
>>> if it ran when it stopped it is already in place, just get the
>>> rust off
>>> the faces of the points with sand paper.
>>>
>>> warm regards:
>>>
>>> mickey
>>> 77 palm beach
>>> anaheim ca.
>>>
>>>
>>> On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
>>>
>>>> Yeah, about the whole "points" thing... uh, that stuff is kind of
>>>> 1800s clockworkery to me. :) I changed out the points to a
>>>> Pertronix
>>>> in my 68 Pontiac. I have no idea what it means to clean and adjust
>>>> points. :) Let me try the other stuff first and then I can work
>>>> my way
>>>> up to the distributor.
>>>>
>>>> I really REALLY need to take a junior college class in
>>>> automechanics...
>>>>
>>>> On 8/27/12, Jon Roche <lqqkatjon@gmail.com> wrote:
>>>>>
>>>>>
>>>>> here is the link to the step by step onan trouble shooting.
>>>>>
>>>>> http://gmcmotorhome.info/generator.html
>>>>>
>>>>> make sure it has enough oil in it. top off the oil.
>>>>>
>>>>> if it has points(probably does). clean the points and re-adjust.
>>>>>
>>>>>
>>>>> --
>>>>> 75 palm beach
>>>>> St. Cloud, MN
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182020 is a reply to message #182019] |
Mon, 27 August 2012 20:15 |
Robin Hood
Messages: 1078
Registered: April 2011
Karma: 3
|
Senior Member |
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|
In all honesty I don't think I could I can identify the carb. I mean, yeah,
the fuel line goes into something, but it doesn't look like a carb as I'm
used to seeing one. I didn't try taking anything apart. I didn't hear any
clicking from the fuel pump, and with zero suction on the fuel hose, I'm
sure the carbs got nothing in it.
On Monday, August 27, 2012, John Wright wrote:
> Do you have fuel to the carb? If not that is where I would look
> first. You need the fuel pump as gravity feed does not work well.
> Does the carb have fuel in it? It might be full of junk too.
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States
> GMCMHI
> 78 Buskirk 30' Stretch
> 1975 Avion (Under Reconstruction)
> Michigan
>
> On Aug 27, 2012, at 8:50 PM, Robin Hood wrote:
>
> > Ok. A glob of 10w30 went into each cylinder through the plug holes
> > (which
> > did turn out to be 13/16). The lawn battery turned it over nicely,
> > but I
> > got no suction from the fuel line. I took video but that's the gist.
> >
> > Advice?
> >
> > On Monday, August 27, 2012, Robin Hood wrote:
> >
> >> Where us thus jumper and pin business located? I see a start button
> >> but
> >> nothing eke I recognize as pins or jumpers in this context.
> >>
> >> Is the spark plug a 13/16 size?
> >>
> >> I bought a lawn implement battery.
> >>
> >> On Monday, August 27, 2012, Mickey Space Ship Shuttle wrote:
> >>
> >>>
> >>> the best way to do the points first is get some sand paper and
> >>> just but
> >>> it between the points and lightly move it back and forth
> >>>
> >>> on both sides that should get them working from rust and it worked
> >>> on my
> >>> old honda a all the time.. do not loosen the points to do it.
> >>>
> >>> if it ran when it stopped it is already in place, just get the
> >>> rust off
> >>> the faces of the points with sand paper.
> >>>
> >>> warm regards:
> >>>
> >>> mickey
> >>> 77 palm beach
> >>> anaheim ca.
> >>>
> >>>
> >>> On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
> >>>
> >>>> Yeah, about the whole "points" thing... uh, that stuff is kind of
> >>>> 1800s clockworkery to me. :) I changed out the points to a
> >>>> Pertronix
> >>>> in my 68 Pontiac. I have no idea what it means to clean and adjust
> >>>> points. :) Let me try the other stuff first and then I can work
> >>>> my way
> >>>> up to the distributor.
> >>>>
> >>>> I really REALLY need to take a junior college class in
> >>>> automechanics...
> >>>>
> >>>> On 8/27/12, Jon Roche <lqqkatjon@gmail.com <javascript:;>> wrote:
> >>>>>
> >>>>>
> >>>>> here is the link to the step by step onan trouble shooting.
> >>>>>
> >>>>> http://gmcmotorhome.info/generator.html
> >>>>>
> >>>>> make sure it has enough oil in it. top off the oil.
> >>>>>
> >>>>> if it has points(probably does). clean the points and re-adjust.
> >>>>>
> >>>>>
> >>>>> --
> >>>>> 75 palm beach
> >>>>> St. Cloud, MN
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182022 is a reply to message #182020] |
Mon, 27 August 2012 20:26 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
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Robin of the Hood,
Here are the manuals for the 6k Power Drawer,
http://www.bdub.net/manuals/Onan/Onan6kwNH_Operator-Parts.pdf
http://www.bdub.net/manuals/Onan/Onan6kwNH_Major-Service.pdf
This has the trouble shooting guides for the fuel system
http://gmcmotorhomeinfo.com/generator.html#Gov
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan
On Aug 27, 2012, at 9:15 PM, Robin Hood wrote:
> In all honesty I don't think I could I can identify the carb. I
> mean, yeah,
> the fuel line goes into something, but it doesn't look like a carb
> as I'm
> used to seeing one. I didn't try taking anything apart. I didn't
> hear any
> clicking from the fuel pump, and with zero suction on the fuel hose,
> I'm
> sure the carbs got nothing in it.
>
> On Monday, August 27, 2012, John Wright wrote:
>
>> Do you have fuel to the carb? If not that is where I would look
>> first. You need the fuel pump as gravity feed does not work well.
>> Does the carb have fuel in it? It might be full of junk too.
>>
>> JR Wright
>> GMC Great Laker MHC
>> GMC Eastern States
>> GMCMHI
>> 78 Buskirk 30' Stretch
>> 1975 Avion (Under Reconstruction)
>> Michigan
>>
>> On Aug 27, 2012, at 8:50 PM, Robin Hood wrote:
>>
>>> Ok. A glob of 10w30 went into each cylinder through the plug holes
>>> (which
>>> did turn out to be 13/16). The lawn battery turned it over nicely,
>>> but I
>>> got no suction from the fuel line. I took video but that's the gist.
>>>
>>> Advice?
>>>
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182023 is a reply to message #182020] |
Mon, 27 August 2012 20:31 |
|
ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
|
Senior Member |
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How about investing $10 in a couple of cans of carb cleaner and spraying anything that has a hose on it!
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
----- Original Message -----
From: "Robin Hood" <loxley@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, August 27, 2012 6:15:49 PM
Subject: Re: [GMCnet] Bringing Onan back to life due to impending hurricane
In all honesty I don't think I could I can identify the carb. I mean, yeah,
the fuel line goes into something, but it doesn't look like a carb as I'm
used to seeing one. I didn't try taking anything apart. I didn't hear any
clicking from the fuel pump, and with zero suction on the fuel hose, I'm
sure the carbs got nothing in it.
On Monday, August 27, 2012, John Wright wrote:
> Do you have fuel to the carb? If not that is where I would look
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
_______________________________________________
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Unsubscribe or Change List Options:
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182024 is a reply to message #182022] |
Mon, 27 August 2012 20:31 |
Robin Hood
Messages: 1078
Registered: April 2011
Karma: 3
|
Senior Member |
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|
Ok, I'll read them. Or "RTFM" as they say. I was hoping I would get really
lucky and the thing would work straight away without me having to actually
LEARN something. Can't have that, apparently. :)
On Monday, August 27, 2012, John Wright wrote:
> Robin of the Hood,
> Here are the manuals for the 6k Power Drawer,
>
> http://www.bdub.net/manuals/Onan/Onan6kwNH_Operator-Parts.pdf
>
> http://www.bdub.net/manuals/Onan/Onan6kwNH_Major-Service.pdf
> This has the trouble shooting guides for the fuel system
>
> http://gmcmotorhomeinfo.com/generator.html#Gov
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States
> GMCMHI
> 78 Buskirk 30' Stretch
> 1975 Avion (Under Reconstruction)
> Michigan
>
> On Aug 27, 2012, at 9:15 PM, Robin Hood wrote:
>
> > In all honesty I don't think I could I can identify the carb. I
> > mean, yeah,
> > the fuel line goes into something, but it doesn't look like a carb
> > as I'm
> > used to seeing one. I didn't try taking anything apart. I didn't
> > hear any
> > clicking from the fuel pump, and with zero suction on the fuel hose,
> > I'm
> > sure the carbs got nothing in it.
> >
> > On Monday, August 27, 2012, John Wright wrote:
> >
> >> Do you have fuel to the carb? If not that is where I would look
> >> first. You need the fuel pump as gravity feed does not work well.
> >> Does the carb have fuel in it? It might be full of junk too.
> >>
> >> JR Wright
> >> GMC Great Laker MHC
> >> GMC Eastern States
> >> GMCMHI
> >> 78 Buskirk 30' Stretch
> >> 1975 Avion (Under Reconstruction)
> >> Michigan
> >>
> >> On Aug 27, 2012, at 8:50 PM, Robin Hood wrote:
> >>
> >>> Ok. A glob of 10w30 went into each cylinder through the plug holes
> >>> (which
> >>> did turn out to be 13/16). The lawn battery turned it over nicely,
> >>> but I
> >>> got no suction from the fuel line. I took video but that's the gist.
> >>>
> >>> Advice?
> >>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182025 is a reply to message #182017] |
Mon, 27 August 2012 20:28 |
|
ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
|
Senior Member |
|
|
The ONAN has an electric fuel pump. It's likely that the old pump is plugged up with gunk and may need replacing. Perhaps a gravity feed to the carb would work???
It cranks - that's the first lucky thing! Care to stick your tongue on the spark plug wire to see if you were going to be lucky twice? (don't - it would put you into a very bad state - worse than Mississippi!)
I'd wager a plastic poncho that the ignition will be fine, but the fuel will need a little work.
Larry Davick
Fremont, California
A Mystery Machine
'76 (ish) Palm Beach
----- Original Message -----
From: "Robin Hood" <loxley@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Monday, August 27, 2012 5:50:49 PM
Subject: Re: [GMCnet] Bringing Onan back to life due to impending hurricane
Ok. A glob of 10w30 went into each cylinder through the plug holes (which
did turn out to be 13/16). The lawn battery turned it over nicely, but I
got no suction from the fuel line. I took video but that's the gist.
Advice?
On Monday, August 27, 2012, Robin Hood wrote:
> Where us thus jumper and pin business located? I see a start button but
> nothing eke I recognize as pins or jumpers in this context.
>
> Is the spark plug a 13/16 size?
>
> I bought a lawn implement battery.
>
> On Monday, August 27, 2012, Mickey Space Ship Shuttle wrote:
>
>>
>> the best way to do the points first is get some sand paper and just but
>> it between the points and lightly move it back and forth
>>
>> on both sides that should get them working from rust and it worked on my
>> old honda a all the time.. do not loosen the points to do it.
>>
>> if it ran when it stopped it is already in place, just get the rust off
>> the faces of the points with sand paper.
>>
>> warm regards:
>>
>> mickey
>> 77 palm beach
>> anaheim ca.
>>
>>
>> On Aug 27, 2012, at 11:07 AM, Robin Hood wrote:
>>
>> > Yeah, about the whole "points" thing... uh, that stuff is kind of
>> > 1800s clockworkery to me. :) I changed out the points to a Pertronix
>> > in my 68 Pontiac. I have no idea what it means to clean and adjust
>> > points. :) Let me try the other stuff first and then I can work my way
>> > up to the distributor.
>> >
>> > I really REALLY need to take a junior college class in automechanics...
>> >
>> > On 8/27/12, Jon Roche <lqqkatjon@gmail.com> wrote:
>> >>
>> >>
>> >> here is the link to the step by step onan trouble shooting.
>> >>
>> >> http://gmcmotorhome.info/generator.html
>> >>
>> >> make sure it has enough oil in it. top off the oil.
>> >>
>> >> if it has points(probably does). clean the points and re-adjust.
>> >>
>> >>
>> >> --
>> >> 75 palm beach
>> >> St. Cloud, MN
>> >> _______________________________________________
>> >> GMCnet mailing list
>> >> Unsubscribe or Change List Options:
>> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> >>
>> >
>> >
>> > --
>> > Robin Hood
>> > Jackson, MS
>> > 2003 Buick Lesabre
>> > 1968 Pontiac Catalina
>> > 1978 GMC Royale motorhome
>> > 1977 GMC Palm Beach motorhome
>> > _______________________________________________
>> > GMCnet mailing list
>> > Unsubscribe or Change List Options:
>> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
> --
> Robin Hood
> Jackson, MS
> 2003 Buick Lesabre
> 1968 Pontiac Catalina
> 1978 GMC Royale motorhome
> 1977 GMC Palm Beach motorhome
>
>
--
Robin Hood
Jackson, MS
2003 Buick Lesabre
1968 Pontiac Catalina
1978 GMC Royale motorhome
1977 GMC Palm Beach motorhome
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
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_______________________________________________
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Unsubscribe or Change List Options:
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
|
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182026 is a reply to message #182022] |
Mon, 27 August 2012 20:34 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
|
Senior Member |
|
|
Robin,
Your expections may be a little high on getting the Onan that has set
that long running in the next few days. Remember it takes fuel and
spark for the motor to run then it has to generate power and run at a
steady state. Lots of stuff to check and get right.
JR Wright
On Aug 27, 2012, at 9:26 PM, John Wright wrote:
> Robin of the Hood,
> Here are the manuals for the 6k Power Drawer,
>
> http://www.bdub.net/manuals/Onan/Onan6kwNH_Operator-Parts.pdf
>
> http://www.bdub.net/manuals/Onan/Onan6kwNH_Major-Service.pdf
> This has the trouble shooting guides for the fuel system
>
> http://gmcmotorhomeinfo.com/generator.html#Gov
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States
> GMCMHI
> 78 Buskirk 30' Stretch
> 1975 Avion (Under Reconstruction)
> Michigan
>
> On Aug 27, 2012, at 9:15 PM, Robin Hood wrote:
>
>> In all honesty I don't think I could I can identify the carb. I
>> mean, yeah,
>> the fuel line goes into something, but it doesn't look like a carb
>> as I'm
>> used to seeing one. I didn't try taking anything apart. I didn't
>> hear any
>> clicking from the fuel pump, and with zero suction on the fuel hose,
>> I'm
>> sure the carbs got nothing in it.
>>
>> On Monday, August 27, 2012, John Wright wrote:
>>
>>> Do you have fuel to the carb? If not that is where I would look
>>> first. You need the fuel pump as gravity feed does not work well.
>>> Does the carb have fuel in it? It might be full of junk too.
>>>
>>> JR Wright
>>> GMC Great Laker MHC
>>> GMC Eastern States
>>> GMCMHI
>>> 78 Buskirk 30' Stretch
>>> 1975 Avion (Under Reconstruction)
>>> Michigan
>>>
>>> On Aug 27, 2012, at 8:50 PM, Robin Hood wrote:
>>>
>>>> Ok. A glob of 10w30 went into each cylinder through the plug holes
>>>> (which
>>>> did turn out to be 13/16). The lawn battery turned it over nicely,
>>>> but I
>>>> got no suction from the fuel line. I took video but that's the
>>>> gist.
>>>>
>>>> Advice?
>>>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
|
|
|
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182028 is a reply to message #182020] |
Mon, 27 August 2012 20:44 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
|
Senior Member |
|
|
| Robin Hood wrote on Mon, 27 August 2012 20:15 |
In all honesty I don't think I could I can identify the carb. I mean, yeah,
the fuel line goes into something, but it doesn't look like a carb as I'm
used to seeing one. I didn't try taking anything apart. I didn't hear any
clicking from the fuel pump, and with zero suction on the fuel hose, I'm
sure the carbs got nothing in it.
|
When I started to play with my Onan the first problem was the fuel cutoff solenoid valve was stuck closed. (If the fuel solenoid valve is still installed, some have been removed.) Then the pump was stuck. Disconnecting them and liberally spraying them several times with carb cleaner freed them up. You can try running the Onan without the fuel shutoff solenoid.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Bringing Onan back to life due to impending hurricane [message #182039 is a reply to message #182024] |
Mon, 27 August 2012 21:43 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
|
Senior Member |
|
|
Robin,
Stupid question; do you intend to try and get the Onan to run hanging on the engine lift?
If you are all I can say is I hope your health insurance is fully paid up.
You are supporting a four hundred pound piece of equipment by an eye with 3/8 - 16 NC threads. Did you buy one that is forged? If
not if may not have capacity to support the Onan. Bottom line the eye bolt is meant to remove the Onan NOT run it on.
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Robin Hood
Sent: Monday, August 27, 2012 7:32 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Bringing Onan back to life due to impending hurricane
Ok, I'll read them. Or "RTFM" as they say. I was hoping I would get really
lucky and the thing would work straight away without me having to actually
LEARN something. Can't have that, apparently. :)
--
Robin
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GMCnet mailing list
Unsubscribe or Change List Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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