Table of Contents
Advertisement
6A1-8
1977 PONTIAC SERVICE MANUAL
2.
Support front of engine so that weight is off engine
front mounts. Remove frame crossmember and both front
crossmember braces.
3. Disconnect steering idler arm at frame side rail.
NOTE: On air conditioned equipped cars disconnect
idler arm at relay rod.
4.
Mark relationship of steering linkage pitman arm to
steering gear pitman shaft and remove pitman arm.
NOTE: Do not rotate steering gear pitman shaft while
steering
arm
is disconnected as this will change steering
wheel alignment.
NOTE: Apply an approved anti-seize compound to the
pan bolt threads before installation.
7. Install flywheel cover.
8. Install steering linkage pitman arm to steering gear
pitman shaft.
9.
Connect steering idler arm to frame side rail (or relay
rod).
10. Install frame front crossmember and both front
crossmember braces. Torque bolts to 38 lbs. ft. and
25
lbs.
ft. respectively.
11. Remove support placed under engine and lower car
on hoist. Fill engine with specified type and quantity of oil
(See owner's manual); start engine and check for leaks.
OIL PUMP SCREEN AND PICK-UP
TUBE
Removal
1. Remove the engine oil pan and baffle as previously
outlined.
2.
Remove the self-locking bolt retaining the pick-up
tube to the cylinder block.
3. Tap the "U" shaped section of the pick-up tube lightly
with a soft faced hammer to remove tube from casting.
CAUTION:
Use extreme care in removing tube
to prevent elongation of the pick- up tube bore in
cylinder case.
Fig.
6A1-15
Removing
Oil
Pan
~ a f f l i s
4.
Clean sealing compound from tube bore.
5. Remove flywheel cover or converter underpan as
applicable.
6. Loosen exhaust pipe at manifold and move to side.
7. Remove pan-to-cylinder case bolts, tap oil pan lightly
to break sealing bond and remove oil pan from
car.
8. Remove the pick-up screen-to-support bolt.
9. Remove pick-up screen-to-baffle support bolts.
Remove support from baffle.
10. Remove bolt securing oil drain back tube to baffle;
then rotate baffle
90"
towards left side of car and remove
baffle from pick-up screen (Fig. 6A 1
-
15).
Installation
1. Thoroughly clean all gasket surfaces.
2.
Apply an approved sealing compound to the gasket
mating surface of the oil pump assembly.
3. Position baffle gasket to baffle; then position baffle to
engine. Install two pan bolts to temporarily retain baffle to
engine.
4. Install oil drain back tube-to-baffle retaining bolt.
Torque to
50
lbs. in.
5. Install pick-up tube support and secure with bolts.
Secure screen to support. Torque bolts to 50 lbs. in.
6. Position gasket on oil pan. Remove pan bolts installed
in Step 3 to temporarily retain baffle and install oil pan and
pan bolts. Torque pan bolts to 15 lbs. ft.; torque bolts
alternately and evenly to provide a uniform draw on pan and
gasket.
lnstallation
NOTE: The oil pick-up tube and screen assembly should
be replaced; with a new part, once it has been removed.
Loss of press fit condition could result in an air leak, loss
of oil pressure and hydraulic lifter noise.
1.
Apply an approved sealing compound to the pick-up
tube sealing surface between tube end and tube boss.
2.
Install tube in bore, aligning retaining brackets with
case tapped holes. Seat tube boss against cylinder case, using
an open end wrench as shown in Fig. 6A1-16.
3. Apply an approved anti-seize compound to retaining
bolts; install bolts and torque to 15 lbs. ft.
4. Install the engine oil pan and baffle as previously
outlined.
OIL SEAL (REAR MAIN)
Replacement
1. Remove the engine oil pan and baffle as previously
outlined.
2.
Remove rear bearing cap and discard lower seal.
3. Loosen the remaining bearing cap bolts slightly to
allow crankshaft to be lowered.
NOTE: Due to possible static friction between pistons
and cylinder walls, the crankshaft may not drop enough
to allow removal and installation of the upper seal. It
will be necessary in such cases, to place a lever between
the crankshaft and block to force the crankshaft down
Advertisement
Table of Contents
