B350 1 Ton Van V8-318 5.2L VIN Y FI (1988)
FIGURE 1
4.
Fill the new tappets, PN 4387682, in the following manner:
a.
Insert the end of a wire or rod through the oil hole in the push rod socket, and push down gently until the push rod socket moves down
inside the tappet body approximately 1/4" (Figure 1).
b.
Holding a finger over the oil inlet hole, fill the exposed cavity in the roller tappet body with 10W30 engine oil.
c.
Slightly extract the wire from the tappet body, allowing the push rod socket to rebound to the retaining clip. The oil placed in the tappet
body now enters the roller tappet through the hole in the push rod socket.
d.
Repeat Steps a. through c. until the push rod socket becomes "solid". A socket is determined to be "solid" when a load can be applied with
a push rod and the socket does not move.
5.
Install the new filled tappets in the engine.
6.
Install intake manifold, using procedure outlined in appropriate service manual.
7.
Install new push rods, PN 4483721. Install rocker shaft assemblies and torque fasteners to 200 inch pounds.
WARNING:
THE ROCKER ARM SHAFT SHOULD BE TORQUED DOWN SLOWLY, STARTING WITH THE CENTER-MOST
BOLTS. ALLOW 20 MINUTES TAPPET BLEED-DOWN TIME AFTER INSTALLATION OF THE ROCKER SHAFTS
BEFORE ENGINE OPERATION.
8.
Install cylinder head covers.
Engine should be started to verify elimination of tappet noise. If some tappet noise is still present, operate engine for 30 minutes at varying rpms
(900 - 2000) or until noise is gone.
POLICY:
Reimbursable within the provisions of the warranty
TIME ALLOWANCE:
Labor Operation No.
09-85-02-92 - 3.9L B Models . . . . . . . . . . . . .
3.1 Hrs.
D-N Models . . . . . . . . . .
3.0 Hrs.
09-85-02-91 - 5.2L B Models . . . . . . . . . .
3.6 Hrs.
A-D-X-W-M Models . . . . . . .
3.5 Hrs.
09-85-02-60 - A/C Equipped B Models . . . . . . .
0.8 Hrs.
A-D-X-W-N-M Models . . . . . .
0.4 Hrs.
FAILURE CODE:
68 - Noisy
