Home » Public Forums » GMCnet » [GMCnet] Generator fuel supply
| [GMCnet] Generator fuel supply [message #170216] |
Sat, 19 May 2012 19:48  |
GMCMHRON
Messages: 113
Registered: January 2004
Karma: 0
|
Senior Member |
|
|
I had trouble getting the old lady fired up this spring. No fuel to the
engine. Had been planning to replace the fuel lines so I did using the
resources on the net. Since I am replacing the floor, I drilled the two
sender locations, cleaned contacts and replaced the lines. Did not drop
the tanks. The one that I could not figure out is the generator. There
is a line going on to the top of the tank and there appears to be a
fitting on the drivers side of the rear tank that goes to who knows
where.
Is there a recommended way to either replace this hose or hook up the
generator another way? Any suggestions happily accepted.
Ron and Julie
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170219 is a reply to message #170216] |
Sat, 19 May 2012 20:10  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
|
Senior Member |
|
|
when you do change out the hoses use the modern fuel injetion type hose, not cheap but it lasts with the new fuels. The spec numbers of this fuel line is not handy right now but Ill try to get that spec tomorrow and post here. Cinnabar changed my Onan fuel hose and it failed in like 4 years. Must not have been the right stuff as it really degraded fast and was dripping on the driveway.
John Lebetski
Woodstock, IL
77 Eleganza II
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170224 is a reply to message #170219] |
Sat, 19 May 2012 20:23 |
 |
ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
|
Senior Member |
|
|
30r9 where the fuel only touches the interior of the hose, 30r10 if the hose is submerged in “gasoline.”
Larry Davick
The Mystery Machine
1976(ish) Palm Beach
Fremont, CA
On May 19, 2012, at 6:10 PM, John R. Lebetski wrote:
>
>
> when you do change out the hoses use the modern fuel injetion type hose, not cheap but it lasts with the new fuels. The spec numbers of this fuel line is not handy right now but Ill try to get that spec tomorrow and post here. Cinnabar changed my Onan fuel hose and it failed in like 4 years. Must not have been the right stuff as it really degraded fast and was dripping on the driveway.
> --
> John Lebetski
> Chicago, IL
> 77 Eleganza II
> Source America First
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
|
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170256 is a reply to message #170216] |
Sun, 20 May 2012 02:36 |
 |
mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
|
Senior Member |
|
|
| GMCMHRON wrote on Sat, 19 May 2012 17:48 |
... The one that I could not figure out is the generator. There
is a line going on to the top of the tank and there appears to be a
fitting on the drivers side of the rear tank that goes to who knows
where.
Is there a recommended way to either replace this hose or hook up the
generator another way? Any suggestions happily accepted.
|
While you could do it like Coachman did (to avoid dropping the tanks), tee it into the main engine fuel line, it would still leave you with a bad hose at the current pick-up.
So... looks like you'll need to drop the tanks....
OBTW: Good job one being able to replace the main engine lines without dropping the tanks. What did you do about the vent lines?
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
|
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170265 is a reply to message #170260] |
Sun, 20 May 2012 06:42 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
|
Senior Member |
|
|
In my earlier notes that I have taken, it was mention to use Poly Amour for
gasoline and brake lines. Is that still doable?
On Sun, May 20, 2012 at 5:11 AM, gene Fisher <mr.erfisher@gmail.com> wrote:
> here is a picture of the hose locations on the tanks (onan - lower right
> corner of picture)
> http://www.gmcmhphotos.com/photos/misc/p8963.html
>
> there are several variations of connection to the Onan, (depending on the
> model of your GMC) but
> mostly there are several components that you might have to change first,
> - gas line inside the Onan cabinet
> - shutoff solenoid
> - Onan gas pump filter
>
> you might find some help here
> http://gmcmotorhome.info/list.html#GEN
>
> good luck
> gene
>
>
> -
>
> On Sat, May 19, 2012 at 5:48 PM, RON KAZI <gmcmhron@optonline.net> wrote:
>
> > I had trouble getting the old lady fired up this spring. No fuel to the
> > engine. Had been planning to replace the fuel lines so I did using the
> > resources on the net. Since I am replacing the floor, I drilled the two
> > sender locations, cleaned contacts and replaced the lines. Did not drop
> > the tanks. The one that I could not figure out is the generator. There
> > is a line going on to the top of the tank and there appears to be a
> > fitting on the drivers side of the rear tank that goes to who knows
> > where.
> >
> > Is there a recommended way to either replace this hose or hook up the
> > generator another way? Any suggestions happily accepted.
> >
> > Ron and Julie
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Gene Fisher -- 74-23,77PB/ore/ca
> “Give a man a fish; you have fed him for today --- give him a URL and
> -------
> http://gmcmotorhome.info/
> Alternator Protection Cable
> http://gmcmotorhome.info/APC.html
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170266 is a reply to message #170265] |
Sun, 20 May 2012 06:58 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
|
Senior Member |
|
|
Not an explicit reply to the question but regarding PolyArmour tubing: For
replacement of my transmission cooler lines, i needed to do some double
flares of 3/8". Since both of my old holding devices are worn out, I
borrowed one from Advance Auto. I examined it before leaving the store and
it appeared to have been used no more than once before. Since I had to go
to Auto Zone on the same trip, I borrowed their tool also -- belt &
suspenders.
Out of 5 tries with the Advance tool, I managed to get ONE flare without
the tube slipping in the clamp. With the AZ tool, 6 out of 7 were good.
Of course, those were both cheap, bottom-of-the line ($25 & $30
respectively) tools, but I expected better of the Advance version -- it
"looked" better and required a 1/2" wrench to lock the clamp and turn the
forcing screw rather than the more wing nuts and sliding rod. If I wasn't
so old, pore, decrepit, and out-of-a-job, I'd buy me one uh them fancy
flare-makin' gadgets!
Oh yeah, Bruce, when I drop my tanks again, I will be using PolyArmour
tubing. Which I must do soon -- all my lines are 13 years old. I'm REALLY
surprised at how well the 30R7 hoses have held up; they still look good.
Ken H.
On Sun, May 20, 2012 at 7:42 AM, Bruce Hart wrote:
> In my earlier notes that I have taken, it was mention to use Poly Amour for
> gasoline and brake lines. Is that still doable?
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #170270 is a reply to message #170265] |
Sun, 20 May 2012 07:56 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
|
Senior Member |
|
|
yes
http://www.gmcmhphotos.com/photos/gmc-chemicals-and-tools/p41308-buy-at-autozone.html
read 2 slides
gene
On Sun, May 20, 2012 at 4:42 AM, Bruce Hart <hartsgmc@gmail.com> wrote:
> In my earlier notes that I have taken, it was mention to use Poly Amour for
> gasoline and brake lines. Is that still doable?
>
> On Sun, May 20, 2012 at 5:11 AM, gene Fisher <mr.erfisher@gmail.com>
> wrote:
>
> > here is a picture of the hose locations on the tanks (onan - lower right
> > corner of picture)
> > http://www.gmcmhphotos.com/photos/misc/p8963.html
> >
> > there are several variations of connection to the Onan, (depending on the
> > model of your GMC) but
> > mostly there are several components that you might have to change first,
> > - gas line inside the Onan cabinet
> > - shutoff solenoid
> > - Onan gas pump filter
> >
> > you might find some help here
> > http://gmcmotorhome.info/list.html#GEN
> >
> > good luck
> > gene
> >
> >
> > -
> >
> > On Sat, May 19, 2012 at 5:48 PM, RON KAZI <gmcmhron@optonline.net>
> wrote:
> >
> > > I had trouble getting the old lady fired up this spring. No fuel to
> the
> > > engine. Had been planning to replace the fuel lines so I did using the
> > > resources on the net. Since I am replacing the floor, I drilled the
> two
> > > sender locations, cleaned contacts and replaced the lines. Did not drop
> > > the tanks. The one that I could not figure out is the generator. There
> > > is a line going on to the top of the tank and there appears to be a
> > > fitting on the drivers side of the rear tank that goes to who knows
> > > where.
> > >
> > > Is there a recommended way to either replace this hose or hook up the
> > > generator another way? Any suggestions happily accepted.
> > >
> > > Ron and Julie
> > > _______________________________________________
> > > GMCnet mailing list
> > > Unsubscribe or Change List Options:
> > > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > >
> >
> >
> >
> > --
> > Gene Fisher -- 74-23,77PB/ore/ca
> > “Give a man a fish; you have fed him for today --- give him a URL and
> > -------
> > http://gmcmotorhome.info/
> > Alternator Protection Cable
> > http://gmcmotorhome.info/APC.html
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
> --
> Bruce Hart
> 1976 Palm Beach
> Milliken, Co
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171293 is a reply to message #170216] |
Tue, 29 May 2012 19:32 |
GMCMHRON
Messages: 113
Registered: January 2004
Karma: 0
|
Senior Member |
|
|
Thanks to all who responded last week to the Generator Fuel Supply
topic. Ended up dropping my tanks. Cleaned them and I am taking them in
to be pressure tested and repaired as necessary. They actually looked
pretty good but I think I noticed (wasn't wearing my glasses!) a bit of
bubbling when cleaning with Foamy Engine Brite. Since I was loosing gas
and none of the hoses I replaced looked particularly bad, I figure it is
worth the effort. Taking it to the place that built my kick butt
radiator for the coach.
The vent lines were very bad and looked like they had been munched on by
our long tailed friends. In the meantime I rebuilt the back bed area,
fixed the broken hinges on generator and propane hatches, installed
struts on generator, removed X-Cargo box from roof, installed new
batteries, installed combination LP/CO detector, Finally wired monitor
panel
and I built a Kayak trailer that holds up to 5 kayaks and gear built on
a frame I paid $25 for! (Harbor Freight $99 90 amp flux core
welder...rocks for what I need to do. AND I didn't have to go after the
biker, Mike the Tusk who borrowed the last one permanently!
Next is 4 new Eagles from Jim K and tires, new Corian countertop,
eliminate oven, new floor...etc. Still have to wire auxiliary vacuum
pump (NOS with new diaphragm, paid $120), lube and I am on my way...I
hope!
All in time for our annual Assateague Island adventure at the end of
June!
After a two years GMC moratorium, I WILL be on the road soon! WAHOO!
Ron and Julie
73 Painted Desert
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171294 is a reply to message #171293] |
Tue, 29 May 2012 21:51 |
glacierfl
Messages: 444
Registered: June 2011
Karma: 0
|
Senior Member |
|
|
Hello,
Perhaps i am dumb or something but, PolyArmour fuel line has steel inside it. I thought that steel and water was not so good a mix. Please can someone tell me the advantage of that versus R9 fuel line ????
cheers and beers
Steve & Debbie
Monticello, FL
77 Palm Beach :- Aurora
EX G4WDT
|
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171305 is a reply to message #171295] |
Tue, 29 May 2012 22:57 |
glacierfl
Messages: 444
Registered: June 2011
Karma: 0
|
Senior Member |
|
|
Hello,
Hope you guys do not get fed up with me.... 
What about vibrations effect on the copper coating ???
Lets say part of the fuel line is moving, for instance on a curved section ???. As the coach rocks around it is possible that the fuel line might flex and move around. Could this cause a fatigue in the copper ???? If that happens then you have fuel able to get into the steel coating ???. Perhaps this is of no consequence, but for me i will stick to the other quality type fuel line. At least until i am totally sure that it's not going to introduce more problems. Just my thoughts is all
cheers and beers
Steve & Debbie
Monticello, FL
77 Palm Beach :- Aurora
EX G4WDT
[Updated on: Tue, 29 May 2012 23:03] Report message to a moderator |
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171324 is a reply to message #171305] |
Wed, 30 May 2012 07:20 |
 |
Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
|
Senior Member |
|
|
| glacierfl wrote on Tue, 29 May 2012 23:57 |
Hello,
Hope you guys do not get fed up with me....
What about vibrations effect on the copper coating ???
Lets say part of the fuel line is moving, for instance on a curved section ???. As the coach rocks around it is possible that the fuel line might flex and move around. Could this cause a fatigue in the copper ???? If that happens then you have fuel able to get into the steel coating ???. Perhaps this is of no consequence, but for me i will stick to the other quality type fuel line. At least until i am totally sure that it's not going to introduce more problems. Just my thoughts is all
cheers and beers
Steve & Debbie
|
Steve,
Your thoughts are not invalid and I encourage people to use this method as often as possible.
But....
I'm not just sure what you consider to be "proper" fuel line material these days. I have just spent an inordinate amount of time tracking down materials that will not create difficulties down the road.
I have never found the origin of the copper fuel line prohibition. Some say it was a problem with the reactions with tetra-ethyl lead, others insist it is the fatigue of copper. In either case, I have seen many steel fuel line come to grief from corrosion or fatigue. I have also know many fuel systems done in soft copper that lasted for years without any issue. I might consider it for the coach, but I like the look of PolyArmour.
My new fuel system will be PA everyplace that is not easily serviced or components require elastomer line. Things like attaching to the selector valve or the vapor trap. But, even those places will be Gates Barricade J30R14T1 (the lower pressure version of J30R9).
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171417 is a reply to message #171324] |
Wed, 30 May 2012 16:32 |
glacierfl
Messages: 444
Registered: June 2011
Karma: 0
|
Senior Member |
|
|
Hello,
It was just a consideration thats all. We all want to put in long lasting lines. Its no holiday.... messing around with fuel tanks and lines. Decided qood quality alchohol resistant lines will work for me. I will wait until the Jury is out on the metal coated lines. Matt i would consider using PolyArmour in a few places, criteria being, that it is not subject to movement that could cause internal fractures/fatigue. It is true that PA is used on some modern vehicles, but i bet the lines are not running around like on the GMC's we have. Interesting conversation 
cheers and beers
Steve & Debbie
Monticello, FL
77 Palm Beach :- Aurora
EX G4WDT
[Updated on: Wed, 30 May 2012 16:38] Report message to a moderator |
|
|
|
|
|
| Re: [GMCnet] Generator fuel supply [message #171678 is a reply to message #171587] |
Fri, 01 June 2012 20:53 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
|
Senior Member |
|
|
Reading this just confirms what has already been stated on the Net/Forum. Ethanol in our GMCs is bad juju. This was written to pertain to pipeline systems. They have a particular section on ethanol cleaning the gunk out of existing systems and causing problems.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
|
|
|
|
Goto Forum:
Current Time: Wed Nov 20 12:29:42 CST 2024
Total time taken to generate the page: 0.01656 seconds
|
GMCforum
Search
Help
Register
Login
Home
