| Re: [GMCnet] Onan ignition questions [message #322627 is a reply to message #322617] |
Fri, 25 August 2017 02:35   |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma:
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Senior Member |
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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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