Model Year: 1985 Corvette L98 5.7L Engine (VIN Code 8)
Subject: Rocker Arm Cover Gaskets
Source: Chevrolet Dealer Service Bulletin
Bulletin Number: 85-163, Section 6
Date: Dec, 1985
TO: ALL CHEVROLET DEALERS
Some 1985 Corvette engines may experience rocker arm cover engine oil leaks which may be caused by improperly applied RTV sealant. A new rocker arm cover gasket, entered production in June, 1985. All 1985 vehicles produced after Vin Code: F5135076 have gaskets, replacing RTV.
The following is a list of Part Numbers released for service:
| P/N | COMPONENT | QUANTITY |
|---|---|---|
| 14101065 | Rocker Arm Cover Gasket | 1 Per bank |
| 14105964 | Fastener Kit | 4-Studs 4-Washers 4-Nuts |
Notice: The aluminum washer must be placed between the rocker arm cover and the steel nut to prevent galvanic corrosion.
When service installation is required on both righ and left rocker arm covers, two (2) 14101065 gaskets and two (2) 14105964 fastener kits must be ordered. The 1985 Corvette Shop Manual, Section 6A 1-6, details the procedures to be followed for removing rocker arm covers.
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.
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Article ID: 185
Created: July 13, 2014
Last Updated: July 13, 2014
Online URL: https://www.corvetteactioncenter.com/tech/knowledgebase/article/1985-corvette-service-bulletin-rocker-arm-cover-gaskets-185.html