Aftermarket pulley Timing marks

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Aug 15, 2006 | 12:12 AM

Alak

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From: Canada

Aftermarket pulley Timing marks

Im verifying a 2nd opinion on this pulley with timing marks.

Which is Top dead center? Sorry for rough diagram. Never seen a pulley like this particular one before.

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Aftermarket pulley Timing marks-timing.jpg

Aug 17, 2006 | 01:00 AM

Alak

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From: Canada

No bites?

Well, I think I have it figured out.

Aug 17, 2006 | 01:47 AM

RotaryEvolution

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From: Central Florida

right one i would guess but personally what do you need TDC for? the CAS is set off the leading mark not TDC. to verify just line up the leading mark on the stock pulley then swap to the aftermarket pulley to verify it's positioning. move it to the trailing on the stock pulley and repeat. i would assume the third mark to the right is TDC for the leading plug since the stock mark is 5*ATDC and trailing is 20* ATDC, leading is the mark to the right and you can see the difference would be about 5 degrees.