Possibly a bad / leaking head gasket. Only a guess....
Dave
At 04:53 PM 11/25/2007, Joe Lansing wrote:
>What's the diagnosis on this condition: Compression at
>about 100 PSI on 1,2,and 4, but #3 is at zero. I can
>see the valve stems going up and down. There is no
>unusual noise like a valve knocking on a piston. I was
>not present when the failure happened, so maybe it was
>noisy at one time.
>
>Hole in the piston? broken/stuck valve?
>
>Thanks,
>
>Joe Lansing
>62 Sprite
>71 MGB GT
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