Firebird L4-151 2.5L (1982)
Valve Cover Gasket: Technical Service Bulletins
Rocker Arm Cover - Gasket & RTV Sealant Usage
Bulletin Number:
91-6-11
Reference Number:
036109
Publish Date:
10/90
Subject:
USE OF GASKET IN PLACE OF RTV ON THE 2.5L ROCKER AR14 COVER (INFORMATION)
Models
Affected:
1980-91 6000, FIREBIRD, GRAND AM, FIERO AND PHOENIX MODELS
This bulletin cancels and replaces Pontiac Service Bulletin 89-6-62. Please discard bulletin 89-6-62 issued 7/89.
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Two styles of rocker arm cover are available, with and without dimples in the flange area.
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Both silicone/steel and cork/rubber gaskets are available for service applications.
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With the dimpled cover, the cork/rubber gasket, P/N 10101791 is preferred; however, RTV may be used.
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With the non-dimpled cover, the silicone/steel gasket, P/N
10124688 is preferred. However, the cork/rubber gasket may be used.
Parts are expected to be available on October 29, 1990. Until then, normal part orders will not be accepted by GMSPO. Only verifiable emergency VIP
orders will be accepted. SPO will make every effort to obtain parts. All parts will be placed on 400 control to waive VIP surcharges. However, the part
will be shipped premium transportation at dealer's expense. All other order types will be cancelled as incorrectly ordered while the 400 control is in
place.
IMPORTANT:
DO NOT USE RTV WITH A NON-DIMPLED COVER. DO NOT USE A SILICONE/STEEL GASKET WITH A DIMPLED COVER.
Even though the gaskets are less sensitive to surface contamination, it is recommended tliat the sealing surfaces be as clean as possible to assure a
reliable seal.
Inspect the rocker arm cover for any bent or distorted flanges. If the flanges are damaged, replace the cover with a new like part.
For the composite cork/rubber gasket, remove the protective paper from the gasket. Place the sticky side of the gasket onto the rocker arm cover.
NOTICE:
IT IS ESSENTIAL THAT THE PROTECTIVE PAPER BE REMOVED PRIOR TO GASKET INSTALLATION FOR LEAK PREVENTION.
Install the rocker arm cover onto the cylinder head and torque the cover bolts to 45 in.lb. (5 N-m).
