W 150 Pickup V8-360 5.9L VIN W (1987)
Valve Cover Gasket: Technical Service Bulletins
Cylinder Head Cover Gasket - Production Change
NO.: 09-04-91
GROUP:
ENGINE
DATE:
June 17, 1991
SUBJECT:
New Cylinder Head Cover Gasket, 3.9L, 5.2L, and 5.9L Engines
MODELS:
1987 - 1989
(M)
DIPLOMAT/GRAND FURY/FIFTH AVENUE
1987 - 1991
(B/AB)
RAM VAN/WAGON (RWD)
(D/AD)
RAM PICKUP/RAM CAB & CHASSIS/RAMCHARGER
(RWD, 4WD) POWER RAM CAB & CHASSIS (4WD)
(N/AN)
DAKOTA/DAKOTA SPORT/DAKOTA CONVERTIBLE/
DAKOTA CAB & CHASSIS (RWD, 4WD)
DISCUSSION:
A new cylinder head cover gasket entered engine production in March, 1991. This new gasket is a steel-backboned, silicon-formed design with
compression limiters. The new gasket provides improved sealing. In addition the new gasket in most cases will not require replacement when removing
the cylinder head cover during engine servicing. Simply wipe the gasket and sealing surface off with a clean cloth and install the gasket in the same
position.
When leak diagnosis or engine service requires cylinder head cover gasket replacement, both gaskets should be replaced on vehicles with engines built
prior to Engine Date Codes:
3.9L V6 - 0848
5.2L V8 - 0846
5.9L V8 - 0855
Because the new gasket is thicker, new cylinder head cover fasteners will be packaged with the gasket. These new fasteners MUST be used when
installing the new gasket on engines with the old style gasket as outlined in the following procedure:
NOTE:
THIS NEW GASKET MAY ALSO BE USED ON ALL 1971 TO 1987 DOMESTIC CHRYSLER, DODGE, PLYMOUTH, CARS AND
TRUCKS EQUIPPED WITH 5.2L AND 5.9L V8 ENGINES.
PARTS REQUIRED:
3.9L Engine
2
Cylinder Head Cover Gasket Package
PN 04638617
Package Contains:
1 Gasket
53005658
6 Bolts
6025325
5.2L/5.9L Engine
2
Cylinder Head Cover Gasket Package
PN 04638618
Package Contains:
1 Gasket
53005660
5 Bolts
6034401
REPAIR PROCEDURE:
This repair involves replacing the cylinder head cover gaskets with revised gaskets.
3.9L V6 ENGINE