LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Merkur >> 1985 >> XR4Ti Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - 4-CYL >> Testing >> Engine Compression
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Engine Compression

Check compression with engine warm, all spark plugs removed and throttle wide open. Crank engine at least 5 strokes per cylinder to determine engine compression.

NOTE: Connect coil high tension wire to ground before cranking engine for compression test.
COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.0:1
Max. Variation Between Cylinders 25%