buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Engine - Noise/Damage Oil Filter Application Importance|Page 1154 > < Engine - Noise/Damage Oil Filter Application Importance|Page 1152
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Oil Filter: Technical Service Bulletins
Engine - Oil Filter Bypass Valve Reminder

Bulletin  85-6-10

Date  Apr. '85

Ref. No.  85-121-6
SUBJECT:

OIL FILTER BYPASS VALVE

MODELS AFFECTED: 1980-1985 VEHICLES EQUIPPED WITH 2.5L L-4 ENGINE (VIN CODE R)

OIL FILTER BYPASS VALVE ASSEMBLY

Whenever a repair requires replacement of the engine block, it will be necessary to remove the oil filter bypass valve assembly and reinstall it in the new
block. If a new oil filter bypass check valve assembly is required, it will be necessary to order Part Number 25010497 through WDDGM. Refer to
Illustration..

Engine - Noise/Damage Oil Filter Application Importance|Page 1154 > < Engine - Noise/Damage Oil Filter Application Importance|Page 1152