gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Fuel Pressure Release > < Rear Engine Plate|Service and Repair|Page 2181
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Valve Clearance: Specifications

GENERAL SPECIFICATIONS

Valve System
Valves - Valve Face Runout ............................................................................................................................................................  0.038 mm (0.0015 inch)
Valves - Valve Seat Runout ................................................................................................................................................................  0.05 mm (0.002 inch) 
Valves - Valve Stem-to-Guide Clearance - Exhaust 0.0375-0.0775 mm (0.0015-0.0030 inch) 
Valves - Valve Stem-to-Guide Clearance - Intake 0.030-0.065 mm (0.0011-0.0025 inch) 
Valve Springs - Valve Spring Load - Closed 211-233 N at 35 mm (47.4-52.4 lb at 1.701 inch)
Valve Springs - Valve Spring Load - Open 632 N at 24.5 mm (130-142 lb at 1.260 inch)

Fuel Pressure Release > < Rear Engine Plate|Service and Repair|Page 2181