Quote:
Originally Posted by Mortgaged
Actually it looks really good without the typical head gasket blow by. Someone must have gone back and retorqued the head bolts?
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Not me!
I actually noticed something else that I need some advice on. I cleaned everything up nice and started turning the crankshaft just to kind of observe the valve action.I noticed something that seems odd, on the compression stroke the exhaust valve moves up ever so slightly right about half way through the stroke. It then drops back down around 3 quarters of the way through the stroke. I pulled the cover off on the side that allows you to look at the valve and what is happening is the rod that pushes the valve up (sorry don't know the technical name of it) twists about 45 degrees and moves slightly upwards , pushing the valve up. Now, I don't have very much practical experience, but from the theory I wouldn't expect the exhaust valve to lift not even slightly during the compression stroke. I pulled up a picture of a camshaft as well and I really don't see any reason for that rod that rides on the camshaft lobes to be twisting either, unless there's an irregularity on the camshaft. But again, with zero experience, I can't tell is this normal behavior. If not, what could be causing it? Should I increase the gap between the valve and that lift rod to cancel out the slight upward motion?