Camshaft Sprocket Or Seal; Adjusting Timing Belt Tension; Replace - Pontiac Grand Prix Service Manual

SIX CYLINDER ENGINE 6 -9
J 22232-1 ADJUST POINTER
\
/
TO
MINUS
MARK
Fig. 6-12
Adjusting Timing Belt Tension
NOTE: Belt to be taut on carburetor side of engine when
5 . h n o v e camshaft sprocket
checking tension.
6. If necessary to replace camshaft seal, reinstall
6. Align belt on pulley by rotating engine 1/2 turn
camshaft sprocket retaining bolt.
using socket and bar on harmonic balancer retaining
bolt, and recheck tension.
7. Thread tool J 2226 1-2 into camshaft seal (Fig. 6-13).
CA UTION: Be certain ignition is
08 8. Tighten center bolt on tool J 22261-1 until seal is
extracted.
7. Remove tension fmture and replace sprocket
retaining bolt making sure threads and washer are free
from dirt. REPLACE
8.
Install upper front timing belt cover.
1. Remove camshaft sprocket retaining bolt.
CAMSHAFT SPROCKET OR SEAL
CAUTION: Do not use tools of any type, other than
hands, to pry on the timing belt during belt removal or
replacement or during other service operations.
REMOVE
1. Remove timing belt top front cover.
2. Remove sprocket to camshaft retaining bolt (Fig.
6-7).
NOTE: For ease of reassembly, index three timing
mark as shown in Fig. 6-
7.
3.
Loosen
six accessory drive to engine block mounting
bolts (Fig. 6- 1 1).
4. Remove timing belt from camshaft sprocket.
2. Install J 22262-2 seal protector and pilot on end of
camshaft.
3. Position camshaft seal on pilot J 22262-2 (Fig. 6-14).
4. Drive seal into position using J 22262-1 seal installer
(Fig. 6-14).
5. Install camshaft sprocket indexing pin on sprocket
with hole in camshaft.
6. Install sprocket retaining bolt. Tighten finger tight.
7. Align timing marks (Fig. 6-7) and install timing
belt.
NOTE: Timing marks differ from previous models in
that the camshafr sprocket timing mark is to be lined up
with the notch in the uppermost timing belt cover
mounting stud.