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Antique Steel Wheel Tractors - Old Iron Lugs and Cleats

Spark Advance on an Oilpull


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Old 07-15-2018, 11:43:20 AM
Wayne Riedlinger Wayne Riedlinger is offline
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Default Spark Advance on an Oilpull

Im wondering about the correct way to set the pionts on a 20-40 G oilpull. When timing the points is the spark advance leaver in the back retarded position or should the points be set with the leaver in forward position. Ive always did it with the leaver forward. Just wondering how other guys are doing it. It has the DU 2 mag on it.
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Old 07-15-2018, 06:08:33 PM
Randy Kvill Randy Kvill is offline
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Default Re: Spark Advance on an Oilpull

Manuals usually refer to retarded spark. I always set with full retard.
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Old 07-15-2018, 09:22:39 PM
Oilpulled Oilpulled is offline
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Default Re: Spark Advance on an Oilpull

Set points with the follower on the high portion of the magneto cam regardless of lever position. Lever position and timing is another matter but make sure firing is past dead center when retarded before cranking to start.
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Old 07-15-2018, 10:59:32 PM
halcon halcon is offline
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Default Re: Spark Advance on an Oilpull

Wayne the most important thing is that the impulse should trip slightly past dead centre, say about 2" on the OD of the fly wheel. then the running timing will look after it self so you can set the running timing with the lever according to it's performance.
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Old 07-28-2018, 09:55:37 AM
Wayne Riedlinger Wayne Riedlinger is offline
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Default Re: Spark Advance on an Oilpull

Well I had a chance to play with the rumley yesterday, been gone working quite a bit lately. I set the timing about 2 inches past D/C. On the flywheel and the points just starting to come onto the rub block with the leaver in retard position.Starts first pull over compression on #1.
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