Westerbeke W-70GA Installationshandbuch PDF herunterladen (Seite 35)

ENGINE

ADJUSTMENTS

SPARK

PLUGS

The spark plugs should be cleaned and regapped after the

first 50 hour break-in period, then inspected every 250 hours

thereafter and replaced

needed.

WARNING:

not

remove

the

spark

plugs

while

the

engine

hot.

Allow

the

engine

cool

before

removing

them.

SPARK

PLUG

GAP:

0.031-0.028

0.0002

in.

(0.8-0.7mm)

SPARK

PLUG

TORQUE:

-15Ib-H

(1.5

2.31

kg-m)

NOTE:

Loctite Anti-Seize applied

the

threadedportion

the

spark plugs will retard

corrosion,

making fuiure removal

the

spark plugs

easier.

INSPECTING

THE

SPARK

PLUGS

CHECK

FOR

CARBON

AND

BURNING

\\.

.....

'L._--INSPECT

FOR

DAMAGE

DRIVE

BELT

ADJUSTMENT

The drive belts must be properly tensioned. Excessive drive

belt tension can cause rapid wear

the belts

and

reduce the

service life

the bearing and the alternator,

raw

water pump,

and engine coolant

pump.

A slack belt or the presence of

oil

the belt can cause belt slipping, resulting

high operating

temperatures and the failure

the same components.

adjust the alternator and the engine coolant belts,

loosen the alternator mounting bolts and pivot the

alternator

needed. Retighten the bolts.

adjust the raw water pump belt, loosen the mounting

bolts and slide the pump

and down

needed.

Retighten the bolts.

NOTE:

When

the

belts

are

loose,

inspect for

wear,

cracks

and

frayed

edges,

and

replace

necessary.

3. The drive belts are properly adjusted

can

deflected

less than 3/8 inch (lOmm) and

than

112

inch

(12mm)

the belt

depressed with the thumb

the

midpoint between

the

two

pulleys

the longest span of

the belt.

Operate the engine for about 5 minutes, then shut down

the engine and recheck the belts tension.

NOTE:

Maintain a

pressure

the

belt's outer face for

proper belt

operation.

Spare

belts should

always

car-

ried

board

WARNING:

Never

attempt

check

adjust

drive

belt's

tension

while

the

engine

operation.

Engines & Generators

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