Chevrolet 10 Series 1968, Service Manual

Page: 370 / 713

ENGINE 6-23
3. Raise engine enough to clear upper mount assembly
and remove upper mount from frame member.
to specifications. Install oil pan with new gaskets
and seals.
Torque oil pan retaining screws to
specifications.
Engine Mounts
Engine mounts (fig. 22L) are the non-adjustable type
and seldom require service. Broken or deteriorated
mounts should be replaced immediately, because of the
added strain placed on other mounts and drive line
components.
Front Mount Replacement
1. Remove frame bracket to mount bolt.
2. Raise engine enough to clear mount.
3. Remove mount and install new mount.
4. Install new mount and torque bolts to specifications.
5. Lower engine then install frame bracket to mount
bolt and torque to specifications.
Rear Mount Replacement
Exce p t G S 1 0 -2 0 Series
1. Raise and support vehicle.
2.
Bend mount bolt french lock tabs away from bolt
head, then remove mount bolts, lower mount and
spacer.
NOTE:
On models using a propeller shaft brake
of any type, it is necessary to remove screws
from transmission hole cover to allow the engine
to raise because of the limited clearance be­
tween the brake and transmission hole cover.
4. Place new upper mount in place on frame member,
then lower engine within 1/4 inch of mount.
5. Align mount so guide dowel enters hole in mount,
install bolt through french lock, lower mount and
spacer, then install bolt up through frame, upper
mount and thread into engine bell housing loosely.
6. Lower engine completely and tighten mount bolt,
then bend tabs of french lock to lock the bolt in place.
G S 1 0 -2 0 Series
The two piece rear support in transmission case ex­
tension may be removed without removing the transmis­
sion from the vehicle. Replace both halves as a unit.
1. Position the fan blade with the blades pointing at the
four corners of the radiator and insert a piece of
heavy corrugated cardboard between the fan and the
radiator. (This will prevent the fan from damaging
the radiator in the event the engine is lowered
too far).
F ig . 2 2 L—Engine Mounts
CHEVROLET TRUCK SERVICE MANUAL