Engine Front Cover Bolts; Crankshaft Gear Removal; Сhecking Valve Timing Without Removing Front Cover - Pontiac TRANS AM 1977 Service Manual

350 AND 403 ENGINE 6A4-17
Fig. 6A4-40 Installing Timing Cover
-
3665
Fig.
6A4-4
1 Engine Front Cover Bolts
rICHTLN UhTll GALCL
MIL1 FIT
BCTWLLN
~ H O N T
TOVLR AND TnoL
4655
Fig.
6A4-43
Front Oil Seal Installation
2.
Remove oil slinger, cam gear and timing chain.
3. Remove key then crankshaft gear.
NOTE: Gear to crankshaft fit tolerances may be such
that a puller is necessary. Fig. 6A4-44
s i
8812-3
\
BT 6812-2 4656
Fig. 6A4-44 Crankshaft Gear Removal
C A UTI 0 N : Remove crankshaft key, if possible
before using pullec if not, align puller so that BT-
6812 does NOT overlap end of key when using
puller, keyway is machined only part way in
crankshafl gear and breakage would occur.
Installation
1. Install camshaft gear, crankshaft gear and timing
chain together and align timing marks Fig. 6A4-45.
NOTE: When the two marks are in alignment (Fig. 6A4-
4 9 , Number six is at T.D.C. To obtain T.D.C. for
Number one cylinder, slowly rotate crankshaft one
rotation, this will bring the cam mark to the top, number
one then will be in firing position.
2. Install fuel pump eccentric with flat side rearward
(Fig. 6A4-46).
3. Drive key in with a brass hammer until it bottoms in
gear.
4. Install oil slinger.
CHECKING VALVE TIMING WITHOUT
REMOVING FRONT COVER
1. Remove distributor cap, right valve cover, No. 4
cylinder intake and exhaust rocker arms and pivot.
2. Remove wire from "Bat." terminal of H.E.I.
distributor.