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Home >> Ford >> 1980 >> Pinto Runabout, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up - 4 CYL >> Engine Compression

Engine Compression

Compression Ratio 9.0:1
Recommended Fuel Unleaded (87 AKI Minimum)

Test compression with all spark plugs removed and engine warm. Crank engine through at least five compression strokes before recording pressure. Maximum compression variation between highest and lowest cylinder must not exceed 25%.