(8) Loosen and remove bolt and washer. To remove
the camshaft sprocket bolts with engine in the vehi-
cle, it may be necessary to lift the engine to allow
bolt removal clearance. The right bolt is 213 mm (8
3/8 in.) long and the left bolt is 255 mm (10.0 in.)
long.
NOTE: Each sprocket has a “D” shaped hole that
allows it to rotate several degrees in each direction
on its shaft. This design requires the crankshaft-to-
camshaft to be properly timed to ensure proper
engine performance.
(9) Remove the camshaft sprockets.
REMOVAL - CRANKSHAFT SPROCKET
(1) Remove the timing belt. (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - REMOVAL)
(2) Remove crankshaft sprocket using Special Tool
L-4407-A (Fig. 150).
INSPECTION - TIMING BELT
(1) Remove timing belt covers. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - REMOVAL)
(2) Inspect both sides of the timing belt. Replace
belt if any of the following conditions exist (Fig. 151):
(a) Hardening of back rubber back side is glossy
without resilience and leaves no indent when
pressed with fingernail.
(b) Cracks on rubber back.
(c) Cracks or peeling of canvas.
(d) Cracks on rib root.
(e) Cracks on belt sides.
(f) Missing teeth.
(g) Abnormal wear of belt sides. The sides are
normal if they are sharp as if cut by a knife.
(h) Vehicle mileage or time at component main-
tenance requirement. (Refer to LUBRICATION &
MAINTENANCE/MAINTENANCE SCHEDULES -
DESCRIPTION)
(3) If none of the above conditions are seen on the
belt, the belt cover can be installed.
NOTE: If belt requires replacing, ensure the proper
length belt is used.
INSTALLATION
INSTALLATION - TIMING BELT
CAUTION: This procedure can only be used when
the camshaft sprockets HAVE NOT BEEN LOOS-
ENED or removed from the camshafts.
CAUTION: If camshafts have moved from the timing
marks, always rotate camshaft towards the direc-
tion nearest to the timing marks (DO NOT TURN
CAMSHAFTS A FULL REVOLUTION OR DAMAGE to
valves and/or pistons could result).
Fig. 150 Crankshaft Sprocket - Removal
1 - SPECIAL TOOL L-4407–A
Fig. 151 Timing Belt Inspection
1 - PEELING
2 - TOOTH MISSING AND CANVAS FIBER EXPOSED
3 - RUBBER EXPOSED
4 - CRACKS
5 - PEELING
6 - ROUNDED EDGE
7 - ABNORMAL WEAR (FLUFFY STRAND)
9 - 174 ENGINE 3.5L LH
TIMING BELT AND SPROCKETS (Continued)
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