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-   -   77, 924, compression (http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/607688-77-924-compression.html)

Raa 05-09-2011 03:02 PM
77, 924, compression
 
Hi. the compression on the 4th cylinder is 60 psi, and the other 3 are at 120.
it idles roughly and stalls sometimes.
should i change the valvles?
wires, cap, etc. are all new.

924RACR 05-10-2011 03:52 AM
You could check the valve clearances, but most likely it needs a headgasket and valve job while you're in there.

A leakdown test will also provide more information to confirm valves, etc.

Raa 05-11-2011 08:07 AM
that's what we're doing today.
thanks a lot bud


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