Westerbeke 8.0KW-60Hz Service Manual page 19

ENGINE-DISASSEMBLY, INSPECTION AND ASSEMBLY
NOTE:
In most cases the inspection and replacement of the timing belt call be
peiformed with the engine/generator in the boat.
Timing Belt Installation
CAMSHAFT--f-1~\
K - - -
CYLINDER
HEAD
SPROCKET
ALIGN THE
TIMING MARK
1. Align the camshaft timing mark with the timing mark
on the cylinder head.
2. Align the crankshaft
timing
mark with the timing
made on the front case.
3. Keeping the tension side of the timing belt tight, fit the
timing belt onto the crankshaft sprocket, camshaft
sprocket, and tensioner pulley in that order.
4. Loosen the tensioner pulley mounting bolts by 1/4 to
112 of a
turn
and allow the tensioner spring to apply
tension to the timing belt
5.
Thrn
the crankshaft twice in the normal rotating
direction (clockwise) and check that the tinting marks
are correctly aligned.
A
CAUTION:
This procedure utilizes the
camshaft's driving torque to apply tension evenly
to the timing belt. Be sure to tum the crankshaft
as described above. 00 not tum the crankshaft in
reverse.
6. Tighten the tensioner pulley mounting bolts.
IDLER PULLEY BOLTS TORQUE 23 Nm (17 H·lb)
7. Replace the timing belt covers.
TIMING BELT COVER BOLTS TORQUE 11 Nm (8 H·lb)
~ WESTERBEKE
Engines &. Generators
12