LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 1987 >> Precis Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - 4-CYL >> Testing >> Engine Compression
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Compression

Check compression pressure with engine at normal operating temperature, choke and throttle valves wide open and engine at cranking speed (250 RPM). Crank engine at least 6 engine revolutions per cylinder to determine engine compression.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
1.5L 9.4:1
1.6L Turbo 7.6:1
1.8L Turbo 7.5:1
2.0L & 2.4L 8.5:1
2.6L (1) 8.2:1
2.6L Turbo 7.0:1
Compression Pressure 149 psi (10.5 kg/cm2 )
Maximum Variation Between Cylinders 10%
(1) Montero compression ratio is 8.7:1.