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Re: [GMCnet] I'm in love with my Onana again [message #93682 is a reply to message #93672 ] Wed, 28 July 2010 15:14 Go to previous messageGo to next message
Mr ERFisher  is currently offline Mr ERFisher
Messages: 2860
Registered: August 2005
Senior Member
here are the various versions

http://www.gmcmotorhome.info/generator.html#IGN

sent by iGene




On Wed, Jul 28, 2010 at 11:03 AM, Shan Rose <defconfx@gmail.com> wrote:

>
>
> The best mod ever for an onan is the crank/flywheel triggered pertronix.
> Anything involving use of the original points plunger is bound to have
> problems at some point. My onan refused to run correctly before I did the
> crank trigger mod, now it runs like a swiss watch. Voltage variances of less
> then .5v! :)
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
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Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] I'm in love with my Onana again [message #93704 is a reply to message #93626 ] Wed, 28 July 2010 19:21 Go to previous messageGo to next message
roy1  is currently offline roy1
Messages: 628
Registered: July 2004
Location: Minden nevada
Senior Member
Bob;
I don't know if it would apply to our Onans but probably.
A couple of years ago a full timer friend came over to my place with a shaft seal for his 4 kw onan that he said was leaking. I pulled the Onan out of his SOB removed the flywheel and replaced the seal. Put the danged unit back in and started it guess what it leaked like a sieve. I checked it myself this time an noticed the oil was coming from a peace of missing gasket where the crankcase pan bolts to the block. Pulled his Onan again and changed the dried out pan gasket then told him he should have used his eyes rather then guess as it isn't always the most logical fix. I had a bad oil leak in mine once which turned out to be the oil pressure failure switch.
Roy
Re: [GMCnet] I'm in love with my Onana again [message #93710 is a reply to message #93670 ] Wed, 28 July 2010 20:38 Go to previous messageGo to next message
philipswanson  is currently offline philipswanson
Messages: 157
Registered: January 2004
Senior Member
Since Gaskins is gone, where are you guys getting his kit? How about a P/N and source. I still have the points.

Phil Swanson
77GMCPB
Re: [GMCnet] Onan oil leak [message #93725 is a reply to message #93637 ] Wed, 28 July 2010 22:19 Go to previous messageGo to next message
jimk  is currently offline jimk
Messages: 2751
Registered: July 2006
Location: Belmont, CA
Senior Member
Emery,
It's sort of nice to fix it without working so hard on it.

On Wed, Jul 28, 2010 at 8:53 AM, Emery Stora <emerystora@mac.com> wrote:

>
>
>
>
>
> On Jul 28, 2010, at 9:15 AM, Bob de Kruyff <NEXT2POOL@AOL.COM> wrote:
> > "
> > My Onan has also run reliably for years, but on my last trip, it
> > suddenly started puking oil in a sizeable amount. It has always been
> > dry. It's not the oil pressure switch and not around the filter nor
> > the oil pan. It appears to be coming from an area that could be the
> > rear seal, but I'd be surprised that would happen within a day. IIRC
> > I had to tighten the governor housing bolts years ago. Any other
> > suggestions? I sure hate to yank it out
>
> For the last year or so I was sure that I had an oil leak behind my
> flywheel based on the amount of oil dripping down the front when it
> was running.
>
> I finally decided to pull the front cover. I grabbed the oil filter to
> remove it and it didn't seem very tight. So I turned it about a whole
> turn and restarted the Onan. The leak had stopped!
>
> Something so simple and it had never occurred to me
>
> Emery Stora
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--
Jim Kanomata
Applied/GMC, Fremont,CA
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Jim Kanomata
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Re: [GMCnet] I'm in love with my Onana again [message #93756 is a reply to message #93710 ] Thu, 29 July 2010 06:14 Go to previous messageGo to next message
Ken Henderson  is currently offline Ken Henderson
Messages: 686
Registered: March 2004
Location: Americus, GA
Senior Member
Phil,

Lawrence never had a kit, nor did anyone else, AFAIK. You just buy a
Pertronix system and make your own bracket for mounting its sensor. IIRC,
my album lists the part number for the Olds 455 kit. I also tried the VW
kit, which Pertronix suggested might have more appropriate physical
characteristics -- it didn't.

Others have posted their installations, which have better brackets than I
installed on the few I've done.

One caution: be sure you buy the original Pertonix Ignitor, which uses a
rotating assembly of magnets to trigger the Hall Effect sensor (use one of
those magnets to mount in the Onan flywheel. DO NOT get the Ignitor II --
it does not use magnets, but detects the lobes on the original distributor
cam -- how, I don't know.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com



On Wed, Jul 28, 2010 at 9:38 PM, Phil Swanson <woodyman1@sbcglobal.net>wrote:

>
>
> Since Gaskins is gone, where are you guys getting his kit? How about a P/N
> and source. I still have the points.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] I'm in love with my Onana again [message #93944 is a reply to message #93756 ] Fri, 30 July 2010 00:55 Go to previous message
Ken Burton  is currently offline Ken Burton
Messages: 3109
Registered: January 2004
Location: Hebron, Indiana
Senior Member

Ken Henderson wrote on Thu, 29 July 2010 06:14

Phil,

Lawrence never had a kit, nor did anyone else, AFAIK. You just buy a
Pertronix system and make your own bracket for mounting its sensor. IIRC,
my album lists the part number for the Olds 455 kit. I also tried the VW
kit, which Pertronix suggested might have more appropriate physical
characteristics -- it didn't.

Others have posted their installations, which have better brackets than I
installed on the few I've done.

One caution: be sure you buy the original Pertonix Ignitor, which uses a
rotating assembly of magnets to trigger the Hall Effect sensor (use one of
those magnets to mount in the Onan flywheel. DO NOT get the Ignitor II --
it does not use magnets, but detects the lobes on the original distributor
cam -- how, I don't know.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com




I used the Olds one. In my opinion is was much easier to mount than the the VW one we did on Dan's coach. We had to make a bracket for Dan's . On mine we just formed the existing bracket to fit.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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