Timing Gear Cover; Cutting Pan Gasket; Applying Front Cover Sealant; Installing Timing Cover - Pontiac TRANS AM 1977 Service Manual

151 ENGINE 6A2-13
NOTE: Pulley to hub bolts have a locking agent applied
to thread area. Bolts should be coated with Drylock
#299 or equivalent whenever they are removed.
Special bolt part number 549787 has the locking agent
already applied for service replacement.
TIMING GEAR COVER
Remove
CUT THIS P O R T I O N
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F R O M NEW
SEAL
Fig. 6A2-26 Oil Pan Front Seal Modification
1. Remove hub as outlined.
2. Remove the two, oil pan-to-front cover attaching
screws.
3. Remove the front cover-to-block attaching screws.
4. Pull the cover slightly forward only enough to permit
cutting of oil pan front seal.
5. Using a sharp knife or other suitable cutting tool, cut
oil pan front seal flush with cylinder block at both sides of
cover (Fig. 6A2-25).
Fig. 6A2-27 Applying Front Cover Sealant
Fig. 6A2-25 Cutting Pan Gasket
6. Remove front cover and attached portion of oil pan
front seal. Remove front cover gasket.
Install
1. Clean gasket surfaces on block and crankcase front
cover.
2. Cut tabs from the new oil pan front seal (Fig. 6A2-26)
use a sharp instrument to ensure a clean cut.
3. Install seal to front cover, pressing tips into holes
provided in cover.
4. Coat the gasket with gasket sealer and place in
position on cover.
5. Apply a 1/8 inch bead of silicone rubber sealer to the
joint formed at the oil pan and cylinder block (Fig. 6A2-27).
6. Install centering tool J-23042 in crankcase front cover
seal (Fig. 61\2-28].
NOTE: It is important that centering tool be used to
align crankcase front cover so that hub installation will
not damage seal and so that seal is positioned evenly
around hub.
7. Install crankcase front cover to block. Install and
partially tighten the two, oil pan-to-front cover screws.
Fig. 6A2-28 Installing Timing Cover
8. Install the front cover-to-block attaching screws.
9. Torque all cover attaching screws to specifications and
remove centering tool 5-23042.
10. Install hub as outlined.
CAMSHAFT
Remove
1. Drain crankcase and radiator.
2. Remove radiator as described in Section 6B.
3. Remove fan and water pump pulley.
4. Remove grille assembly on H Series (See Sec. 14).
5. Remove valve cover and gasket, loosen valve rocker
arm nuts and pivot rocker arms clear of push rods.
6. Remove distributor, spark plugs and fuel pump.
7. Remove push rod cover and gasket. Remove push rods
and valve lifters.