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I have a VL flywheel set which is 8 1/8" in diameter, 2 1/8" thick sprocket side, 1 1/2" thick pinion side, no markings on sprocket side and 150 30H marketed on pinion side. Although no marking on sprocket, I would estimate from Steve Solcombe book this is after 1930 wheels. But it has no timing mark. It does have a "C" stamped near were timing mark should be but no timing mark. I thought all wheels after 1930 had timing marks. Also, can anyone tell me what total timing advance is in degrees for VL. Guess I will have to make my own timing mark. Thanks!
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Dear Buster, looks like 1930 flywheels originally balanced for cast iron pistons. 1930 was the most produced VL year, and standard (low) compression with iron pistons the most produced model, so these are the ones you'll most likely find. For 1930 the ignition was done by piston position, 5/16" to 11/32" btdc depending on service and compression ratio.
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