Lower Front Timing Belt Cover; Front Crankcase Cover And Gasket-Remove And Replace; Removing Crankshaft Front Seal; Crankshaft Timing Belt Sprocket Or - Pontiac Grand Prix Service Manual

SIX CYLINDER ENGINE
6-19
Fig. 6-32 Crankshaft Sprocket
NOTE: Clean threads in pulley using a Y 16"
-
16 UNC
tap and a light application of oil, to assure puller bolts
seat fi14.
REPLACE
1. Install new harmonic balancer by tightening
attaching bolt until balancer is fully seated on,end of
crankshaft lining up keyway in balancer with key on
crankshaft.
2. Tighten harmonic balancer attaching bolt to 160 lb.
ft. torque.
NOTE: Remove flywheel cover and lock flywheel before
tightening balancer bolt.
LOWER FRONT TIMING BELT COVER
3. Remove fan and water pump pulley.
4. Remove harmonic balancer.
5. Remove timing belt lower front cover (Fig. 6-31).
6. Loosen accessory drive mounting bolts to provide
slack in timing belt.
7. Remove timing belt.
8. Remove crankshaft timing belt flange and sprocket
(Fig. 6132).
9.
Pry
seal from crankcase cover (Fig. 6-33) using care
not to distort the cover.
REPLACE
1. Install new seal with lip of seal inward u ~ i n g seal
installer J 22260 (Fig. 6-34).
2. Replace crankshaft timing belt sprocket and flange.
3. Align timing marks (Fig. 6-7) and replace timing
belt.
4. Replace timing belt loGer front cover and harmonic
balancer.
5. Adjust timing belt tension.
6. Replace water pump pulley and fan.
7. Replace timing belt upper front cover.
FRONT CRANKCASE COVER AND GASKET-REMOVE
AND REPLACE
REMOVE AND REPLACE
1. Remove crankshaft timing belt sprocket as shown
above.
1. Remove harmonic balancer, fan and water pump
pulley.
2. Remove two attaching bolts and remove cover (Fig.
6 - 3 1).
3. Install cover by reversing above steps. Tighten cover
attaching bolts to 20 lb. ft.
CRANKSHAFT TIMING BELT SPROCKET OR
CRANKCASE COVER SEAL
REMOVE
1. Remove upper front timing cover.
2. Align timing marks (Fig. 6-7).
Fig. 6.33 Removing Crankshaft Front Seal