Westerbeke 55A FOUR Installationshandbuch PDF herunterladen (Seite 29)

ENGINE

ADJUSTMENTS

(Continued)

TIMING

BELT

INSPECTION

AND

REPLACEMENT'

1. Before removing the timing belt and timing belt

tensioner, rotate the engine crankshaft by hand and

align the three timing marks as shown in the

illustration.

CAUTION:

After

removal

the

timing

belt,

NOT

rotate

the

crankshaft

camshaft;

the

pistons

will

damage

the

opened

valves.

~nM"G.AA~

TIMING

MARKS

NOTE:

the timing belt is

be reused, draw an arrow on

the belt pointing in the direction

the belts rotation.

Replace it

the same direction.

DIRECTION

ARROW

Inspection

1. Replace the timing belt

it is contaminated with oil,

grease or water.

2. Check for damage, wear, peeling, cracks or

hardening. Replace

suspect.

NOTE:

Never forcefully twist the timing belt; turn it inside

out or bend

it.

Timing

Belt

Tensioner

Check the rotation

the timing belt tensioner pulley.

Check for play or abnormal noise.

NOTE:

Do not clean the timing belt tensioner with clean-

ing solvents.

dirty, use a clean rag

wipe it clean.

Avoid scratching the

suiface the belt travels over.

OAMAGE,/

WEAR

I:"

','

. '

...

:.,

OAMAGE,

WEAR

Timing

Belt,

Camshaft

And

Injection

Pump

Gears

1. Check the gear teeth for any indication

damage,

wear, deformation, etc. Replace

any faults are

found.

Timing

Belt

Installation

Check to ensure that the timing marks on the gears

are properly aligned with the marks on the case.

2. Loosely install the timing belt tensioner, locking bolt

and spring. Push the timing belt tensioner toward the

lock bolt

the left

far as it will go and then tighten

the locking bolt to temporarily hold the tensioner

in place.

LOCKING

BOLT

TIMING

BELT

TENSIONER

I~l

WESTERBEKE

Engines

Generators

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 43 44

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