Westerbeke 38B FOUR Operator's Manual download pdf (Page 46)

Priming

the

Fuel System

The Westerbeke self-bleeding fuel system

semiautomatic in operation. The self-bleeding feature of the fuel

system allows for easy servicing

the fuel filters. Simply remove the and replace the filter elements (take

care in catching any fuel that may drain out

the fuel filtering assemblies) as described

the "Replacing

the

Fuel

Filter Elements" section below. Energize the PREHEAT switch and allow the electric fuel pump to

operate for

seconds to prime and bleed air from the system. (No fittings should be opened.) Then

proceed

start the engine as you normally would. If the engine does not start, stop and wait a few mo-

ments, and then repeat the bleed procedure as indicated above. When the PREHEAT

SWITch

is depressed,

the preheat elements (the glow plugs) are energized, so take care not

over heat them.

CAUTION

Prolonged

cranking

intervals

without

the

engine starting can result in

filling

the

engine-

mounted

exhaust

system

with

sea water coolant.

This

may

happen

because

the

sea

water

pump

pumping

sea water

through

the

sea water

cooling

system

during

crank-

ing.

This

sea water can enter

the

engine's cylinders

way

the

exhaust

manifold

once

the

exhaust

system

Iills. Prevent

this

irom

happening

closing

the

sea water

supply

through-hull

shut-off,

drain

the

exhaust muffler, and

correct

the

cause

for

the

excessive

engine

cranking

needed

obtain

slart.

Engine

damage

resulting

from

this

type

sea water

entry

nol

warrantable issue;

the

owner/operator

should

keep

this

mind.

Replacing

the

Fuel

Filler

Elements

While it

unlikely that the operator will be forced to service the system at

sea,

the possibility does exist.

Therefore, it

recommended that banjo washers, injector seat washers, electric lift pump filter and gasket,

fuel filter and gasket be carried on board at

all

times. Select the parts for your engine from the Parts List and

purchase spares from your

local Westerbeke Dealer

Distributor. For example, hardware kit #33093 in-

cludes replacement

elements with gaskets (items

#6,

20,

21). If a leak should develop at a fuel banjo or

sealing washer location that cannot be remedied

slight tightening of the filter cup retainer, replace the fil-

ter along with the O-rings supplied with the new filter.

After the first

hours

operation, loosen retainer ring

and discard filter element #

21.

Clean bowl #

and install a new filter using a new #

gasket. Be

careful

catch any fuel that

may

spill

from

within

these

fuel filter assemblies. This same service

required

the # 6 filter element in the electric fuel lift pump.

Similarly, install a new # 6 filter element along with a

new # 8 gasket. The base of the electric fuel pump

removed with the aid

an open end wrench. Twist the

base off the pump's locking tabs and reinstall the base

by twisting it back on the locking tabs.

Place the

wrench on the hex nut cast into the base.

After the first

50-hour change, the change period may

be increased to

200 hours or once per season.

Westerbeke

Diesel Engines 44

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Westerbeke 38B FOUR Operator's Manual Page 46

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