I'm trying to decide (from a near-overheating episode a month ago) whether the cause was the start of a blown head gasket (may have been getting some combustion gas in the coolant, not sure though) . I was advised to check compression, finally did it yesterday.
The readings (cold engine, all plugs removed, unfortunately forgot to hold the throttle plate wide open) were: 120#, 125#, 131#, 130#. Are these reasonable numbers? Should I retest under different conditions?
'71 Fiat 850 Spider, stock 903cc. Head bolts recently retorqued to 39.8 ft.-lbs., and no overheating since then over several drives.
The readings (cold engine, all plugs removed, unfortunately forgot to hold the throttle plate wide open) were: 120#, 125#, 131#, 130#. Are these reasonable numbers? Should I retest under different conditions?
'71 Fiat 850 Spider, stock 903cc. Head bolts recently retorqued to 39.8 ft.-lbs., and no overheating since then over several drives.