TIMING
BELT
DISASSEMBLY
5. Remove the timing belt.
NOTE:
lfthe
timing belt
is
to be reused, draw
an
arrow on
the belt to indicate the direction
of
rotation (clockwise)
..
Camshaft
Sprocket
Removal
1.
Remove the camshaft sprocket bolt without turning the
camshaft.
SPROCKET
BOLT
Oil
Pump
Sprock~
Flange
Nut
Removal
1. Remove the plug from the left side
of
the cylinder block.
2. Insert an
0.31 in (8 mm) diameter round bar to lock the
counterbalance shaft.
3. Remove the oil pump sprocket flange nut.
OIL
PUMP
SPROCKET
Crankshaft
Bolt
Removal
1. Lock the crankshaft in position.
NOTE:
Do
not
tum
the crankshaft.
2.
Remove the crankshaft bolt.
Timing
Belt
Inspection
Replace the belt
if
any
of
the following conditions exist:
• Hardening
of
the back rubber, leaves no indent when
pressed with fingernail (back side is glossy).
• Cracks on rubber back.
• Cracks
or
peeling
of
canvas.
• Cracks on tooth bottom.
• Cracks on
belt
• Abnormal wear
of
belt sides. The sides are normal
if
they
are
sharp as
if
cut
by
a knife.
• Abnormal wear on teeth.
• Tooth missing and canvas fiber exposed.
HARDENING
~
CRACKS
ON
UNDERSIZE
CRACKS
ON
TOP
Tensioner
Inspection
CRACKS
ON
EDGE
ROUNDED
EDGES
FLUFFY
STRANDS
TOOTH
MISSING
CANVAS
EXPOSED
1.
Replace the tensioner if the pulley binds, rattles or
is
noisy
when turned.
Engines & Generators
12
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