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1981 - 1990 Corvette: Service Bulletin: Oil Filter Leakage Proper Installation Procedure

Subject: OIL FILTER LEAKAGE PROPER INSTALLATION PROCEDURE
Model and Year: 1981-90 CHEVROLET MODELS
Source: Chevrolet Service Bulletin
Bulletin Number: 90-216-6 - (05/12/1989)

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 90-187-6, DATED MARCH 1990. THE 1990 MODEL YEAR HAS BEEN ADDED. ALL COPIES OF 90-187-6 SHOULD BE DISCARDED.

To prevent leakage of small 75mm oil filters such as PF-40, PF-45, PF-47, PF-51, etc., it is very important that the installation instructions listed below are closely followed.

Remove old filter by turning counter clockwise. Clean gasket sealing area on Engine Oil Filter Mounting Surface. (If engine has an adapter base, make sure threaded nipple or bolt is properly torqued.)

Lightly oil gasket with clean oil and install filter. After the oil filter gasket contacts the oil filter adapter base, tighten 3/4 to 1 full turn. When necessary, use a cap-type wrench, AC Delco OF17W or equivalent, or strap type wrench with swivel handle to insure proper installation.

With engine oil at proper level, run engine three minutes and thoroughly check filter area for leaks.

IMPORTANT: Be certain to follow replacement oil filter usage applications.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.

© Copyright General Motors Corporation. All Rights Reserved

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