Posted by pete 23 on April 23, 2010 at 10:05:15 from (173.87.145.42):
In Reply to: timing a 504 farmall posted by skye farm on April 23, 2010 at 04:02:13:
Set timing at full throttle, I don't have specs on that engine right here. A proper working ignition system will have a nice smooth advance from low idle to high idle, normally low idle is right at about tdc and just a guess would be about 22 degrees btdc at full throttle. The important reading is the one at full throttle for full power and engine life. A lot of advance mechanisms get worn and will advance way to early and cause a rough running engine at any speed under full throttle and if you set the timing where it belongs at low idle it will be way short on the high end.
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