Question about Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
strip heads off again and remove the valves and check the seats ,regrind the valves and fit new springs and seals ,also check the cam lobes for deformation (wear)
Posted on Jun 22, 2009
I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.
Posted on Jul 23, 2009
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