B250 3/4 Ton Van V8-360 5.9L (1984)
Rocker Arm Assembly: Customer Interest
Engine - Valve Train Noise
Models
1984 Rear Wheel Drive Passenger Car Equipped W/318 Engine; 1984 Rear Wheel Drive Truck & Vans Equipped W/318 or 360 Engine
Subject
Valve Rocker Arm Breakage
Index
ENGINE
Date
December 21, 1984
No..
09-11-84
SYMPTOM/CONDITION
Noise in valve train.
DIAGNOSIS
Remove valve cover and inspect rocker arms for breakage in the push rod area. The push rod may have penetrated the rocker arm.
PARTS REQUIRED
Passenger Car & Truck
8 - Rocker Arm
PN 4100774
8 - Rocker Arm
PN 4100775
REPAIR PROCEDURE
When a rocker arm is found to have failed in the above manner in the subject model engines, it is necessary to replace all 16 rocker arms and inspect the
push rods.
1.
Remove valve covers.
2.
Remove all rocker arms and replace with new ones.
3.
Inspect push rods and replace as necessary.
4.
Reinstall rocker shafts and torque screws to 25 foot pounds (34 N-m).
5.
Replace valve cover gaskets and reinstall valve covers. Tighten valve cover screws to 80 inch pounds (9 N-m).
POLICY:
Information only