Table of Contents
Advertisement
6A3-10
1977 PONTIAC SERVICE MANUAL
Fig.
6A3-20
Removing and Installing Camshaft Bearings
Camshaft Bearing Service
Slightly scored camshaft bearings will be satisfactory if
the surfaces of camshaft journals are polished and bearings
are cleaned up to remove burrs, and the fit of shaft in bearings
is free and within the specification.
Should the bearing be gauled beyond repair, the bearing
will have to be replaced.
To install precision replacement cam bearing, special
Tool J
27408
is required. To remove and install replacement
bearing proceed as follows:
Bearing lnstallation
1. Assemble puller screw to required length.
2.
Select proper size expanding collet and back-up nut.
3. Install expanding collet on expanding mandrel.
4.
Install back-up nut.
5. Place new camshaft bearing on collet and GENTLY
hand tighten back-up nut to expand collet to fit bearing. Do
not over tighten back-up nut. A loose sliding fit between collet
and bearing surface is adequate. This will provide just enough
clearance to allow for the "col1apse"which will occur when
the new bearing is pulled into the engine block.
6. Slide mandrel assembly and bearing into bearing bore
as far as it will go without force.
7.
Thread end of puller screw onto the end of the
mandrel.
Make certain to align oil holes in bearing and block
properly. One of the collet separation lines may be used as
a reference point.
8.
Install pulling plate, thrust bearing and pulling nut
on threaded end of puller screw.
9. Install bearing in the same manner as described in
Steps
8
and 9 under "Bearing Removal".
When installing rear cam bearing, install new welch plug
at back of cam bore. Coat O.D. of plug with non-harding
sealer before installation.
OIL PAN
Removal
1. Raise vehicle.
2.
Drain oil.
3.
Remove flywheel cover.
4.
Remove crossover pipe.
5. Remove oil pan.
lnstallation
For installation, reverse procedures of oil pan removal
observing the following:
1. Clean oil pan. Make sure the gasket surfaces on pan
and block are clean.
2.
Apply silastic sealer to a few spots on a new pan gasket
and install on block.
3. Install oil pan. Torque bolts to specifications. DO
NOT overtighten.
OIL PUMP PIPE AND SCREEN
ASSEMBLY
REMOVAL AND INSPECTION
Removal
1. Remove oil pan
2.
Remove oil pump pipe and screen assembly to
cylinder block bolts.
Advertisement
Table of Contents
