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Jim Brierley · 03-26-2021, 12:04 PM

With the pin in, and a Model A cover, #1 piston is at TDC, and quite accurately. When the 2 dots on the gears are lined up, it is nowhere near TDC, this may be where the confusion lies??? A model B cover is different, and the pin does not indicate TDC.

03-26-2021, 12:04 PM	#14
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,091	Re: Timing Pin Dimple is not TDC? With the pin in, and a Model A cover, #1 piston is at TDC, and quite accurately. When the 2 dots on the gears are lined up, it is nowhere near TDC, this may be where the confusion lies??? A model B cover is different, and the pin does not indicate TDC.