Westerbeke 55A FOUR Manual de Instalação descarregar pdf (Página 30)

ENGINE

ADJUSTMENTS

(Continued)

3. Install the timing belt.

NOTE:

reinstalling the original belt, be sure to

install with the arrow in the correct direction

belt

rotation.

DIRECTION

ARROW

4. Release the timing belt tensioner lock bolt to allow

the tensioning spring tensionor to bring pressure on

the timing belt.

5. Turn the crankshaft twice in the direction

normal

engine rotation (clockwise) to equalize tension on the

timing belt.

NOTE:

not

turn the engine in reverse

its normal

rotation.

6. Tighten the timing belt tensioner lock bolt.

Lock bolt torque: 3.2-4.7 m-kg

(23-34

ft-Ib)

7. Re-check the timing mark positions between the three

gears and the gear case. Check the timing belt

deflection at the point on the belt shown in the

illustration with a pushing force

kg (22Ib).

Standard Deflection (unit cold):

10.8-12.9 mm (0.43-0.51 in)

8. Install the timing belt left cover with its rubber seal.

9. Install the timing belt right cover with its rubber seal.

Bolt torque for timing belt cover bolts:

0.7-1.0 m-kg

(5-7

ft-Ib)

10. Install the crankshaft pulley and torsional damper

onto the timing belt drive gear with the semicircular

(woodruff) key. Tighten the attachment.

Crankshaft pulley bolt torque:

2.3-3.3 m-kg

(17-24

ft-Ib)

NOTE:

When installing the torsional damper onto the

timing belt drive gear, align the mark on the damper

with the knock pin on the gear.

TIMING

BELT

COVER

(RIGHT)

TIMING

BELT

COVER

(LEFT)

I"VVJ WESJERBEKE

Engines

& Generators

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Westerbeke 55A FOUR Manual de Instalação Página 30

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