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Timing belt replacement _ I'm half a tooth off Help please 850

well i managed to remove the timing belt and replace the pulleys (2) and dampener/tensioner BUT each time when I "finish" the timing belt is off by one half tooth on either a cam sprocket or the crank pulley


I have marked the cam sprockets and the crank shaft. They were already marked prior to me as well as the timing belt cover so the marks, all three, are spot on. Each time I get the belt on the crank pulley & cam sprockets (inteke or exhaust- it varies ) is off a slight bit on one. It's getting dark and my last attempt is HALF A TOOTH OFF on the intake sprocket.

I aligned the crank mark first to the mark on the block.(also checked to ensure #1 piston was at TDC). Crank is right on. THe exhaust sprocket is right on BUT the intake sprocket is one half tooth off. Not a whole tooth away but the mark is in a valley on the sprocket and the tooth immediately before it is aligned with the timng cover mark. BTW the cam sprocket mark is a half tooth clockwise away from the cover mark

So the relationship between the crank, exhaust sprocket and intake sprocket is half a tooth off on the intake sprocket. Half a tooth off...does this matter or is it "good enough". I haven't done a belt before so I'm unsure if this is okay or do I keep at it. When I strain to get the belt on the sprocket moves ever so slightly so when I check alignment somethings outa alignment.

It seems this should be okay but what do I know

What's your opinion? And have you done this before?

paul






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New Timing belt replacement _ I'm half a tooth off Help please [850]
posted by  paulfr  on Tue Oct 9 10:41 CST 2007 >


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