Timing mark on pulley

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Timing mark on pulley

Postby bobp » Sat Dec 24, 2011 12:33 pm

Hi everyone. My crankshaft pulley has 2 notches. Which one is used to determine TDC for timing purposes? Whats the other one used for? Thanks.
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Re: Timing mark on pulley

Postby Bigdog » Sat Dec 24, 2011 1:44 pm

The first notch to pass the pointer indicates 16 degrees before TDC. The desired advance for higher RPMs. The second notch to pass the pointer is TDC.
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Re: Timing mark on pulley

Postby Denny Clayton » Sat Dec 24, 2011 1:45 pm

The second one is TDC. The first one is 16 degrees BTDC.

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