Description
The crankshaft front cover is mounted
against the cylinder block end plate at
the lower front end of the engine (see
The engine is sup-
ported at the front end by engine sup-
ports attached to the front cover.
It will be necessary to remove the crank-
shaft front cover to remove and install
the crankshaft or when the engine is ov-
erhauled.
Remove Crankshaft Front Cover
Figure 11B-96. Crankshaft Front
C o v e r Mounting
1 . Drain the oil and remove the oil pan.
drawn up and then tightened to their
2. Remove the vibration damper and any
proper torque to effect a good seal be-
other accessories that may be mounted on
Tighten the
tween the mating parts.
the front of the crankshaft.
3/8"-24 bolts to 25-30 lb-ft (34-41 Nm)
and the 1/2"-13 bolts to 80-90 lb-ft
3. Remove the vibration damper inner
(108-122 Nm) torque.
c o n e or oil seal spacer.
6. Install
the
oil
pan,
using
a
new
4. Remove the cover attaching bolts and
gasket.
washers (see Figure 11B-97).
7. Refer to Section 11H and refill the
5. Strike the rear face of the ears on the
crankcase with oil to the proper level on
cover with a soft hammer to free the cov-
the dipstick.
Pull the cover
er from the dowels.
straight off the end of the crankshaft.
CRANKSHAFT VIBRATION DAMPER
6 . Remove the cover gasket.
7 . Remove and inspect the oil slinger.
Description
8 . Replace the oil seal
This engine uses a vibration damper to
reduce the crankshaft stresses to a safe
value.
Install Crankshaft Front Cover
The viscous (fluid) type damper is em-
1. Install the oil slinger in place next to
ployed when the equipment the engine
the oil pump drive gear with the dished
outer diameter of the slinger facing away
from the gear.
2. Shellac a new gasket to the bolting
flange of the crankshaft front cover.
3. Coat the lip of the oil seal lightly with
cup grease.
4. Attach the cover to the cylinder block
front end plate with bolts and lockwash-
ers in addition to lockwashers on alumi-
num covers.
5. Tighten the cover attaching bolts by
following the tightening sequence indi-
cated in Figure 11B-98 on page 11B-63.
F i g u r e 11B-97. F r o n t Cover Parts
Follow this sequence as the bolts are