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So! Got my hands on an OTC compression tester and set to work. Removed the fuel injection and fuel pump relays, pulled all the spark plugs and held the throttle open. Did not add oil to the cylinders (dry test).
The engine was cold and hadn't been run in about 4 days. Here are the results:
#1 = ~195 psi
#2 = ~195 psi
#3 = ~190 psi
#4 = ~190 psi
#5 = ~205 psi
#6 = ~197 psi
#7 = ~190 psi
#8 = ~193 psi
Do those numbers seem a little high? Should I do another test at operating temp?
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1974 911
1978 928 5spd
1984 928S 5spd
1983 944, 1984 944 track car
1995 Saab 900 S, 1997 Saab 900 Turbo, 1999 Saab 9-3 S
Last edited by Opelotus; 09-25-2014 at 05:28 PM..
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