compression values for '79 280

spokes · Feb 12, 2002

Anybody know what is a good compression reading for a '79 280 with 117K? How much difference between cylinders is allowable. Also, what is a good oil pressure reading (idle/driving).

Thanks for all the help!

Dan

79-280-ZX · Feb 12, 2002

Oil pressure: 10 PSI per 1000 rpm. Do not rely on the in dash gauge, for an accurate reading use an external mechanical oil pressure gauge.

Compression: 150 PSI + or - 5 % between adjoining cylinders and all readings for high and low cylinders should be within 10 % of each other.

Wayne Monteath
Masham, Quebec.

compression values for '79 280

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