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Home >> Chevrolet >> 1989 >> Astro Van M L4-151 2.5L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Compressor HVAC >> System Specifications >> Tightening Specifications >> With R-4 Compressor
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With R-4 Compressor

Shaft Nut 14 N.m (10 ft. lbs.)

Pressure Switch 10 N.m (88 in. lbs.)

Front Head Bolts 27 N.m (20 ft. lbs.)

Pressure Relief Valve 17 N.m (13 ft. lbs.)

Rim Mounting Screws 11 N.m (100 in. lbs.)

Oil Drain Screw 17 N.m (13 ft. lbs.)