Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993)
Compression Check: Specifications
Compression Check
Compression Check
Compression Check (200-300 rpm and fully open throttle)
Standard
1,079-1,275 kPa (156-185 psi)
CAUTION: When using a screw-in type compression gauge, the screw
placed in cylinder head plug hole should be less than 18 mm (0.71 in.)
long.
Limit
883 kPa (128 psi)
Difference Between Cylinders
196 kPa (28 psi)