| Re: [GMCnet] Onan ignition questions [message #322630 is a reply to message #322627] |
Fri, 25 August 2017 08:39   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma:
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Senior Member |
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Ken,
We have the luxury of having all the parts here to use on these Onan and
sometimes when all things fail, we try new parts. Believe it or not, the
parts cost lot less than labor and it works better.
On Fri, Aug 25, 2017 at 12:35 AM, Ken Burton wrote:
> Jim and Fred, we pulled the capacitor today and still no fire at all. I
> then reinstalled the original bad coil which has an intermittent secondary.
> It fired and ran intermittently.
>
> We reinstalled the two new coils and nothing. Finally the guy working
> with me said. lets do this dynamically. So while I held the start button
> he
> cranked on the adjustment. After a couple of turns it fired
> sporadically. Eventually we got it to run and fine tuned the points
> setting until it ran
> smoothly. We have effectively increased the dwell time. It runs fine now
> and the points are much closer than the .020 spec. We reinstalled the
> capacitor and it still runs fine.
>
> Evidently these higher impedance coils take a longer dwell. I did not
> measure the final clearance and look at the timing. The points cover is
> back
> on and we moved on to other problems ike no start / run without jumpering
> Pin 9 to +12 volts and no power out of the generator. Found a bad full wave
> bridge and replaced it. We still have no 120V power. We will continue
> on this tomorrow.
>
> Thanks for the help everybody.
>
> Ken B.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
>
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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