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I got a 3.0 vulcan. I changed the head gasket and put back together. only had 30 psi average compression for the cylinders. I took it all back apart and found the valves were very leaky. I put the heads on and have 170psi. I put the rocker arms on and have 0-25 psi. The rocker arms won;t back off enough. I tightened the rocker arms to 25 ft\lbs as recommended. I can't adjust them. what do I do? can I shim the rocker arms?
 

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With the stock rockers, you're supposed to manually turn the engine a couple times to get them properly adjusted/tightened. Most service manuals will explain this procedure.
 

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There is actually a procedure in the manual on how to adjust the rockers.

You need to mark your harmonic balance off in degrees.

I think it was like three different positions to get them all adjusted.

It came straight out of the Haynes manual and I did it on my 99

Mike
B)
 
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