gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

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K 1500 Truck 4WD V8-5.7L VIN R (1997)

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Valve: Specifications

Face Angle ........................................................................................................................................................................................................................  45°

Seat Angle ........................................................................................................................................................................................................................  46°

Stem Clearance:

Intake Production ..................................................................................................................................................  0.025-0.069 mm (0.0010-0.0027 inch)
Exhaust Production ...............................................................................................................................................  0.025-0.069 mm (0.0010-0.0027 inch)
Intake Service ........................................................................................................................................................  0.025-0.094 mm (0.0010-0.0037 inch)
Exhaust Service .....................................................................................................................................................  0.025-0.194 mm (0.0010-0.0076 inch)

Valve Lash ..............................................................................................................................................................................  1 Turn Down from Zero Lash

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