on 1/15/04 1:33 AM, KenCo at ken@kencofish.com wrote:
> ummm, that would be across the board, not 1 cyl. only! ;)
I was referring to #1 only.
Did you see the different values for each cylinder?
The chain may have jumped and a piston kissed a valve on #1, too.
It's a quick and easy way to eliminate the chain befire pulling the head
off.
To remove the head he has to pull the timing cover and remove the chain
anyway. May as well check it. If the head comes off, he may as well change
the chain and gear. He has to go through the motions regardless.
If the chain is off, he can replace it, and before buttoning it up, run
another compression check. Then if he still gets bad compression readings,
it's only a matter of removing the chain and then the head.
Is that engine a pushrod design? If so, there could be a bent pushrod,
causing the low compression. That often happens when a chain jumps.
With the valve cover off, it's easy to check the pushrods.
Jon
STL MO
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