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daren007 · 05-26-2019, 10:24 PM

The model "B" uses 19 degrees BTDC initial timing, Wouldn't this give a rough idle opposed to TDC for the "A". Somehow this does not make sense. The "A" owners manual says to advance 1/2 after start. This would be approximately 20 degrees. It pretty much states that is where you leave the lever for most driving although we know that is not how it works in the real world. Is there anyone out there that have had their lifter and cam bores repaired to stock tolerances, If so what were the results on engine smoothness. From what I have seen this is something almost if not all engine rebuilders do not address.

05-26-2019, 10:24 PM	#5
daren007 Senior Member Join Date: Apr 2015 Location: Saint Cloud Mn Posts: 745	Re: Engine Idle The model "B" uses 19 degrees BTDC initial timing, Wouldn't this give a rough idle opposed to TDC for the "A". Somehow this does not make sense. The "A" owners manual says to advance 1/2 after start. This would be approximately 20 degrees. It pretty much states that is where you leave the lever for most driving although we know that is not how it works in the real world. Is there anyone out there that have had their lifter and cam bores repaired to stock tolerances, If so what were the results on engine smoothness. From what I have seen this is something almost if not all engine rebuilders do not address.