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Setting timing on Onan [message #283061]

Fri, 24 July 2015 20:06

thainglo

Messages: 132
Registered: March 2015
Location: Iowa

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Senior Member

I'm getting ready to install a Pertronix kit this weekend to eliminate the points as part of my issues with the Onan. Great write ups from Ken H and group on module installation, so feel comfortable digging in there. Have kind of a remedial question that I'm hoping others can help,with...

I want to set my timing at 27 BTDC. I decided to pull my flywheel this afternoon to paint my timing marks so they are clearly visible. The back of my flywheel has TC and 25 marked, so I measured and went a hair farther (about 0.26") to mark 27. Scored with dremel and filled in with white paint. Put some matching marks on the front of the flywheel by the ring teeth for easy reference. I also marked a straight line thru TDC from the mark behind the flywheel.

Here is question: to make timing 27 BTDC, do I align the mark on my flywheel representing 27 BTDC with the TDC on the shroud? When I do this, the TDC on the flywheel is marked with the corresponding factory molding for 27 behind the flywheel. However, there is nothing showing in the timing window...

When I align my flywheel mark with the window to show 27, not much aligns with anything...

Photos of my two scenarios here:
http://www.gmcmhphotos.com/photos/onan/p58561-timing-marks.html

As I said, likely a very remedial question, but I appreciate any guidance. Thanks!

Matt Sladek 1976 Eleganza II Coralville, IA

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[Message index]

		Setting timing on Onan By: thainglo on Fri, 24 July 2015 20:06
		Re: Setting timing on Onan By: Matt Colie on Fri, 24 July 2015 21:25
		Re: [GMCnet] Setting timing on Onan By: Mr ERFisher on Sat, 25 July 2015 04:46
		Re: [GMCnet] Setting timing on Onan By: rjw on Sat, 25 July 2015 20:26
		Re: [GMCnet] Setting timing on Onan By: Mr ERFisher on Sun, 26 July 2015 05:35
		Re: [GMCnet] Setting timing on Onan By: thainglo on Sun, 26 July 2015 06:44
		Re: [GMCnet] Setting timing on Onan By: gcbgold on Sun, 26 July 2015 10:03
		Re: [GMCnet] Setting timing on Onan By: USAussie on Sun, 26 July 2015 14:22
		Re: [GMCnet] Setting timing on Onan By: rjw on Sun, 26 July 2015 16:15
		Re: [GMCnet] Setting timing on Onan By: Ken Burton on Sun, 26 July 2015 16:45
		Re: [GMCnet] Setting timing on Onan By: USAussie on Sun, 26 July 2015 19:08
		Re: [GMCnet] Setting timing on Onan By: rjw on Sun, 26 July 2015 20:09
		Re: [GMCnet] Setting timing on Onan By: Gary Bovee on Sun, 26 July 2015 18:01
		Re: [GMCnet] Setting timing on Onan By: Dennis S on Sun, 26 July 2015 18:23
		Re: [GMCnet] Setting timing on Onan By: USAussie on Sun, 26 July 2015 19:25
		Re: [GMCnet] Setting timing on Onan By: thainglo on Sun, 26 July 2015 20:14
		Re: Setting timing on Onan By: thainglo on Sat, 25 July 2015 07:17
		Re: [GMCnet] Setting timing on Onan By: USAussie on Sun, 26 July 2015 05:07

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