Home » Public Forums » GMCnet » Onan Coil Wiring
| Onan Coil Wiring [message #269717] |
Thu, 15 January 2015 03:50  |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
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There is some type of capacitor or condenser connected to one side of the Onan coil. I could not find a great picture of one, but on the photo site, some seem to have it but some don't. What does it do? Are they necessary to run? Looks like the condenser used with points but at least double the size. Just a single wire connected to one side of the coil.
I am a bookkeeper, not an electrition.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
[Updated on: Thu, 15 January 2015 04:09] Report message to a moderator |
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| Re: [GMCnet] Onan Coal Wiring [message #269718 is a reply to message #269717] |
Thu, 15 January 2015 04:16  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Steve,
Like you electrically challenged so I can't answer your question, however, thanks for the laugh!
It's electrician! ;-)
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Steve Adams
There is some type of capacitor or condenser connected to one side of the Onan coil. I could not find a great picture of one, but on
the photo site, some seem to have it but some don't. What does it do? Are they necessary to run? Looks like the condenser used
with points but at least double the size. Just a single wire connected to one side of the coil.
I am a bookkeeper, not an electrition.
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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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| Re: Onan Coil Wiring [message #269720 is a reply to message #269717] |
Thu, 15 January 2015 05:27 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
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Rob,
I wish I could blame my spelling on spell checkers and Apple auto correct but I have to take responsibility. Spelling is not my strong suit. Like I said, I am a bookkeeper, pretty good with numbers, but can barely spell my own name.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
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| Re: [GMCnet] Onan Coal Wiring [message #269724 is a reply to message #269717] |
Thu, 15 January 2015 06:21 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Look again at the funny U-Tube video Rob linked to a couple of days ago:
http://www.liveleak.com/view?i=cf4_1414026047
Ken H.
On Thu, Jan 15, 2015 at 4:50 AM, Steve Adams wrote:
> There is some type of capacitor or condenser connected to one side of the
> Onan coil. I could not find a great picture of one, but on the photo site,
> some seem to have it but some don't. What does it do? Are they necessary
> to run? Looks like the condenser used with points but at least double the
> size. Just a single wire connected to one side of the coil.
>
> I am a bookkeeper, not an electrition.
> --
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Onan Coal Wiring [message #269732 is a reply to message #269724] |
Thu, 15 January 2015 09:34 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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Condenser is used with a points style ignition to keep the points from burning up. It also helps somewhat with RFI problems.
Perhaps the condenser is there, along side the coil, instead of in the little points box because it was a replacement that does not fit in the box.
Change to Pertronix and do away with points.
Tom , MS II
2012 Phoenix Cruiser model 2552
KA4CSG
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| Re: [GMCnet] Onan Coal Wiring [message #269735 is a reply to message #269732] |
Thu, 15 January 2015 10:02 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Nope, the capacitor that is mounted to the coil is for noise reduction. The
one for the ignition points is located inside the points box. If the one on
the coil is removed, the Onan should still run fine. You might hear some
snapping or popping in your radio speakers, or according to some RF
junkies, someone might experience airborne interference to sensitive
attenuated equipment in the near vicinity.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Jan 15, 2015 7:35 AM, "Thomas Phipps" wrote:
> Condenser is used with a points style ignition to keep the points from
> burning up. It also helps somewhat with RFI problems.
> Perhaps the condenser is there, along side the coil, instead of in the
> little points box because it was a replacement that does not fit in the box.
> Change to Pertronix and do away with points.
> Tom , MS II
> --
> 1975 GMC Avion
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| Re: Onan Coil Wiring [message #269736 is a reply to message #269717] |
Thu, 15 January 2015 10:11 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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If the capacitor is wired on the +side of the ignition coil it is there ignition noise suppression in your or you neighbor radios. When the capacitor is wired on the - (minus) side (points side) of the coil it is there for arc suppression to keep from burning up the points.
The first one is not required to make the engine run correctly but your neighbors might like you if the listen to their radio.
The second one is definitely required. It is usually wired and mounted at the points end of the wire rather than at the coil. I do not remember where it is mounted on the Onan because I use Pertronix unit rather than points.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Onan Coil Wiring [message #269752 is a reply to message #269717] |
Thu, 15 January 2015 16:54 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
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Thanks to all (Rob, Ken H, Tom, Jim, & Ken B),
The genset in my coach is running well. I am working on a donor Onan, which is hanging from an engine hoist,trying to get spark and get it started. Your answers were very helpful. Now I know that I don't have to worry about that part in terms of getting it running. My plan is to work through the testing and troubleshooting guide in the repair manual and other resources.
I might even break out the Dwayne Simmons DVD this weekend.
Thanks again.
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
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| Re: [GMCnet] Onan Coil Wiring [message #269763 is a reply to message #269720] |
Thu, 15 January 2015 19:29 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Steve,
I meant no offense and for the record if you could see emails as it type them you'd see how much help I get from Microsoft Office's
automatic spell checker you'd be laughing!
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Steve Adams
Rob,
I wish I could blame my spelling on spell checkers and Apple auto correct but I have to take responsibility. Spelling is not my
strong suit. Like I said, I am a bookkeeper, pretty good with numbers, but can barely spell my own name.
--
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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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| Re: [GMCnet] Onan Coil Wiring [message #269774 is a reply to message #269763] |
Fri, 16 January 2015 04:39 |
Steve
Messages: 506
Registered: September 2013
Location: East Greenville, Pa
Karma: 1
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Senior Member |
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Rob,
No offense taken at all. I got a good laugh out of it. It's kind of a friends and family joke, and i consider you my good GMC friend from Australia. I shared it with my wife and we were both laughing about it. Great to have friends around the country and around the world.
Many thanks for all of your quick and valuable responses to so many on the gmc.net.
On a side note (non-GMC) I wish I could be in Sydney on Monday. My good friends from the legendary rock band Cheap Trick will be playing at the Qantas Credit Union Arena in Sydney. Apparently the Sydney Opera House was not available. I always thought the Opera House was so cool.
USAussie wrote on Thu, 15 January 2015 20:29Steve,
I meant no offense and for the record if you could see emails as it type them you'd see how much help I get from Microsoft Office's
automatic spell checker you'd be laughing!
Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Steve Adams
Rob,
I wish I could blame my spelling on spell checkers and Apple auto correct but I have to take responsibility. Spelling is not my
strong suit. Like I said, I am a bookkeeper, pretty good with numbers, but can barely spell my own name.
--
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GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
1978 GMC Royal
Eastern Pennslyvania
1968 Chevrolet C20 396 Camper Special
1969 Chevrolet C20 Camper Special
1985 Buick Electra Park Avenue
1992 Camaro 25th Anniversary Heretage Edition Black
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| Re: [GMCnet] Onan Coil Wiring [message #269792 is a reply to message #269774] |
Fri, 16 January 2015 17:25 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Steve,
Glad to hear you got a laugh out of it too! I poke fun at myself frequently, however, I have discovered one must be careful as there
are some thin skinned folks around here!
Engineers are notoriously bad spellers, there's an OLD joke that goes; "Yesterday I couldn't spell engineer. Now I are one."
The Sydney Opera House is one of the world's iconic structures like the Empire State Building, Golden Gate Bridge, St. Louis Arch,
Eiffel Tower, Big Ben, Brandenburg Gate, Taj Mahal, The Pyramids, The Spynx, etc. I have attended concerts, ballets, operas, and
plays in it's various halls. Between 2010 and 2013 the building and the surrounding area went through a $150 upgrading.
Regards,
Rob M.
-----Original Message-----
From: Steve Adams
Rob,
No offense taken at all. I got a good laugh out of it. It's kind of a friends and family joke, and I consider you my good GMC friend
from Australia. I shared it with my wife and we were both laughing about it. Great to have friends around the country and around the
world.
Many thanks for all of your quick and valuable responses to so many on the gmc.net.
On a side note (non-GMC) I wish I could be in Sydney on Monday. My good friends from the legendary rock band Cheap Trick will be
playing at the Qantas Credit Union Arena in Sydney. Apparently the Sydney Opera House was not available. I always thought the Opera
House was so cool.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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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