vibration damper or pulley is not secure-
ly fastened to the crankshaft.
NOTE
The damper assembly must be se-
curely fastened to the crankshaft.
When the bolt is drawn up to the
specified torque, the cones will
hold the damper rigidly in place.
CRANKSHAFT PULLEY
Description
The crankshaft pulley is keyed to the
Figure 11B-101. Vibration Damper and
crankshaft and secured with a special
Pulley Mounting
washer and bolt.
5. Install the crankshaft pulley and vi-
The new crankshaft bolts are now lubrite
bration damper assembly with the damper
coated to prevent possible damage (gall-
assembly side of the pulley facing the
ing) to the bolt threads and to increase
crankshaft front cover.
the clamp load to the front end stack up
(crankshaft pulley, vibration damper,
6. Slide the outer cone over the crank-
e t c . ) . Also the new washer (retainer) is
shaft and into the hub of the vibration
n o w case hardened.
damper (or the crankshaft pulley).
The new bolts and washers can be identi-
7. Install the crankshaft cap (or crank-
fied by their black color.
shaft pulley).
8. Thread the crankshaft cap (or pulley)
R e m o v e Crankshaft Pulley
retaining
washer,
if
used,
into
the
crankshaft and tig'hten it as follows:
The difference in the design of pulleys
d i c t a t e s the use of various puller tools as
A . Tighten to 180 lb-ft (244 Nm) torque.
outlined below:
B. S t r i k e t h e e n d o f t h e b o l t a s h a r p
1 . Remove the bolt and washer.
blow with a 2 to 3 pound lead hammer.
2. Install the pulley bolt in the end of
C. Tighten to 300 lb-ft (407 Nm) torque
the crankshaft and use puller J 24420.
and strike the bolt again.
D. Tighten to 290-310 lb-ft (393-421 Nm)
I n s t a l l Crankshaft Pulley
torque.
Refer to Figure 11B-102 on page 11B-66
and install the crankshaft pulley as fol-
NOTE
lows:
Do not strike the bolt after final
torque has been applied.
1. Place the Woodruff keys in the key
slots in the front end of the crankshaft,
if they were removed.
The hex head of the crankshaft bolt may
2. Slide the pulley over the end of the
be used to bar, or turn, the crankshaft.
crankshaft.
However, the barring operation should
always be performed in a clockwise direc-
3. Place the washer on the bolt and
It is very important to make cer-
tion.
thread
the
bolt
into
the
end
of
the
tain that the bolt has not been loosened
drawing the pulley tight
crankshaft,
during the barring operation. Otherwise
against the oil seal spacer.
serious engine damage may result if the
E n g i n e (Less Major Assemblies)
