Pontiac FIREBIRD 1972 Service Manual page 587

V-8 ENGINE 6-75
Fig. 6-126 Fuel Pump Drive - A l l Except 3 0 7 Engine
2 1. On all but 307 engine, install four oil pan to timing
chain cover screws and tighten to 12 lb. ft.
22. Install harmonic balancer, retainer bolt with retainer,
and tighten to 160 lb. ft. (All but 307 engine) or 60
lb. ft. (307 engine).
23. Connect lower radiator hose to pump inlet.
24. Position pulley and fan on water pump hub and in-
stall attaching bolts. Tighten to 20 lb, ft.
25. Install power steering pump and belt on cars so
equipped.
26. Install generator adjusting strap.
27. Install fan belt and accessory drive belts. Adjust to
proper tension (see Section 6A).
28. On all but 307 engine, install fuel pump.
29. On 307 engine, install oil pan gasket and oil pan.
30. Refill cooling system and check for leaks.
TIMING CHAIN AND SPROCKETS
REMOVE AND REPLACE
1. Remove timing chain cover, making certain O-ring
seal is retained for installation at assembly.
2. Remove fuel pump eccentric and bushing (all but 307
engine) and timing chain cover oil seal.
3. Align timing marks to simplify proper positioning of
sprockets during reassembly (Fig. 6- 127).
4. On 307 engine, remove three camshaft sprocket re-
taining bolts (Fig. 6-128) and remove sprocket and
chain.
5. If crankshaft sprocket is to be replaced, remove
sprocket using tool 5-22888 (Fig. 6-129). Refer to Fig.
6- 130 for correct installation procedure.
6. Slide timing chain and sprockets off ends of crank-
shaft and camshaft.
7. Install new timing chain and/or sprockets, making
sure marks on timing sprockets are aligned exactly on
a straight line passing through the shaft centers (Fig.
6-1 19). Camshaft should extend through sprocket so
that hole in fuel pump eccentric will locate on shaft.
8. On 307 engine, draw camshaft sprocket onto cam-
shaft with three mounting bolts. (Do not attempt to
drive camshaft sprocket onto camshaft as welsh plug
at rear of engine can be dislodged).
9. On all but 307 engine, install fuel pump eccentric and
bushing, indexing tab on eccentric with keyway cut-
out in sprocket. Install retainer bolt with retainer
washer and tighten securely.
10. Place timing chain cover gasket over studs and dow-
els.
Fig. 6-1 2 7 Timing Marks ,yned
d t
No. 1 T.D.C.
-
All
Except 3 0 7 Engine