Chevrolet BEAUVILLE SPORTVAN G10 SERIES, Service Manual

Page: 162 / 350

E NG IN E 6-33
SIDE
GASKETSj
FRONT
SEAL
Fig. 1 0 V —Oil Pan Gasket and Seal Location
3. Install oil pan as outlin ed .
Oil Seal (Rear Main)
Replacement
N O T E : Always replace the upper and lower seal as
a u nit. Install seal w ith lip facing fro n t o f engine.
The rear m ain bearing oil seal can be replaced (b o th halves)
w ith o u t rem oval o f th e cran k sh aft. E x trem e care should be
exercised w hen installing this seal to p ro te c t th e sealing bead
located in th e channel on th e outside diam eter o f th e seal. An
installation to o l (Fig. 11V), can be used to p ro tec t the seal
b ead w hen positioning u pper h a lf o f seal betw een crankshaft
an d b lo c k as follows.
1. W ith the oil pan and oil pum p rem oved, rem ove th e rear
m ain bearing cap.
2. Rem ove oil seal from th e bearing cap b y prying from th e
b o tto m w ith a sm all screw driver (Fig. 12V).
3. To rem ove th e u pper h a lf o f th e seal, use a small ham m er
to ta p a brass pin p u n ch o n one end o f seal u n til it
p ro tru d es far enough to be rem oved w ith pliers (Fig.
13 V).
4. Clean all sealant and foreign m aterial from cylinder case
bearing cap and cran k sh aft, using a nonabrasive cleaner.
5. Inspect com ponents fo r nicks, scratches, burrs and
m achining defects at all sealing surfaces, case assembly
an d crankshaft.
Fig. 1 2 V —Rem oving Oil Seal (L ow er Half)
Fig. 1 3 V —Rem oving Oil Seal (U pper Half)
Fig. 1 1 V —Oil Seal Installation Tool
6
. C oat seal lips an d seal bead w ith light engine oil — keep
oil o ff seal m ating ends.
7. P osition tip o f to o l betw een crankshaft and seal seat in
cylinder case.
8
. P osition seal betw een crankshaft an d tip o f to o l so th a t
seal bead co n tacts tip o f tool.
N O T E : Make sure th a t oil-seal lip is positioned
toward fro n t o f engine.
C H E V Y V A N S H O P M A N U A L