Chevrolet CHEVY VAN G10 SERIES Service Manual page 163

ENG INE 6-34
Fig. 1 4 V —Sealing Bearing Cap
9. Roll seal around crankshaft using tool as a "shoehorn" to
pro tec t seal bead from sharp corner o f seal seat surface in
cylinder case.
C A U T IO N : Installation
position until seal is properly positioned w ith both
ends flush w ith block.
10. Rem ove tool, being careful n o t to w ithdraw seal.
11. Install seal h alf in bearing cap, again using tool as a
" shoehorn," feeding seal into cap using light pressure
w ith th u m b and finger.
12. Install bearing cap to case w ith sealant applied to the
cap-to-case interface being careful to keep sealant o ff the
seal split line (Fig. 14V).
13. Install th e rear main bearing cap (w ith new seal) and
torque to specifications.
Torsional Damper
Removal
1. Remove fan belt, fan and pulley.
2. Rem ove th e radiator and shroud assembly as outlined in
Section 13.
N O T E : If additional operations (such as camshaft
removal) are not being perform ed, the radiator
removal will not be necessary.
3. Rem ove accessory drive pulley then, if so equipped,
remove dam per retaining bolt.
4. Install Tool J-23526 on dam per then, tu rning puller
screw, remove dam per (Fig. 15V).
Installation
C A U T IO N : The inertia
torsional damper is assembled to the hub w ith a
rubber type material. The installation procedures
(w ith proper to o l) must be follow ed or movement
of the inertia weight section on the hub w ill destroy
the tuning o f the torsional damper.
APPLY
S E A L A N T
T O S H A D E D
A R EA S O N L Y
tool must remain in
weight section of the
Fig. 1 5 V —Removing Torsional Dam per
1. Coat fro n t cover seal co n tact area (on dam per) w ith
engine oil.
2. Install dam per on crankshaft as follows:
a. Install 7 /1 6 " threaded end o f Tool J-23523 in to
crankshaft.
C A U T IO N : Install tool in crankshaft so th at at
least 1 /2 " o f thread engagement is obtained.
b. Position dam per on crankshaft, aligning dam per
w ith key on crankshaft.
c. Install plate, th ru st bearing and n u t to com plete
to o l installation.
d. Pull dam per in to position as show n in Figure 16V.
e. Remove to o l from crankshaft th e n install dam per
retaining b o lt and to rq u e to specifications.
3. Install accessory drive pulley.
4. Install fan an d pulley to w ater pum p hub and tighten
securely.
Fig. 1 6 V -ln s ta llin g Torsional Damper
C H E V Y V A N SH O P M A N U A L