buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Computers and Control Systems > < Valve Clearance|Specifications
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Valve Clearance: Adjustments

    These engines are equipped with hydraulic valve lifters which do not normally require periodic adjustment. However, if cylinder head or valve train
requires service and/or lifter noise is excessive, adjust valves as outlined in procedure below.

V6-181, 231, 252

    A nylon retainer is used to retain the rocker arms to the rocker shaft on these engines. No provision for adjustment is provided.

Computers and Control Systems > < Valve Clearance|Specifications