Operation CHARM: Car repair manuals for everyone.

Compression Check

Cylinder Compression

Engine at operating temperature
Throttle fully open
Cranking speed 200 - 300 rpm
Standard 1,050 - 1,400 kPa (11 - 14 kgf/cm2, 152 - 203 psi)
Difference between cylinders 100 kPa (1 kgf/cm2, 14 psi) or less