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Piston stop ignorance, what am I doing wrong

5179 Views 8 Replies 5 Participants Last post by  Bluegoose1970
Installing a Cloyes true roller timing set and I'm looking for TDC on the #1 piston. So do I rotate the crank until the sprocket mark is at twelve and run the stop in and get all happy :hurray: when the it doesn't go in it's total length or do I screw in the stop and get happy when I rotate the crank by hand and I can't turn the crank any farther? Seems to me that depending on how much I screw the stop into the cylinder that I could have the piston make contact before It reaches it's highest point.
what am I missing here :confused:?
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You do understand that the only thing the piston stop is establishing is the correct position of your timing cover pointer at true top dead center.

So no, it makes no difference how far down the piston stop is, just as long as it contacts the piston.

Of course, for the purpose of finding the spot exactly between the two marks, you dou't want it too far down, the further down in the bore that the stop makes contact, the further your two marks will be apart from each other.
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