Westerbeke 12.0KW - 50Hz EDT Installation Manual download pdf (Page 33)

ENGINE

ADJUSTMENTS

NOTE:

WESTERBEKE recommends that the following engine adjust-

ments be peiformed by a competent engine mechanic. The information

below

provided to assist the mechanic.

TESTING

ENGINE

COMPRESSION

Make certain the oil level (dipstick) is at the correct level and

the air intake filter

clean. The battery and starter motor

must also

good condition.

Warm the engine to normal operating temperature.

Move the control lever to a position for shutting off the

fuel. (Disconnect the wires

a fuel shutdown solenoid is

used).

3. Remove all the glow plugs from the engine and instalI

the compression gauge/adapter combination to the

cylin-

der on which the compression

to be measured.

TESTING

ENGINE

COMPRESSION

PRESSURE

GAUGE

4. Close the raw water seacock (thru-hull).

5. Crank the engine and allow the gauge to reach a

maximum reading, then record that reading.

Repeat this process for each cylinder.

Compression

pressure

427

psi

(3~

kgf/cm2)

290

rpm.

Maximum

permissible

difference

between

cylinders

42.7

psi

kgf/cm2)

NOTE:

the readings are below the limit, the engine needs

repair

Re-instalI the glow plugs (use anti-seize compound on

the threads) and reset the fuel shut-off to the run position.

Open the raw water seacock (thm-hull).

LOW

COMPRESSION

When low compression

found, determine the cause by

applying a small amount

oil in the cylinder thru the glow

plug hole. Allow the oil to settle.

Install the pressure gauge and repeat the above test.

the

compression reading rises dramatically, the fault

with the

rings.

If the compression valve does not rise, the problem

with

the

valves.

A slight rise in compression would indicate a problem with

both the rings and the valves.

FUEL

INJECTORS

In case of severe vibrations and detonation noise, have the

injectors checked and overhauled by

authorized fuel

injection service center. Poor fuel quality, contaminants and

loss

positive fuel pressure to the injection pump can result

in injector faults. Since fuel injectors must be serviced

clean room enviroment, it

best to carry

least one extra

injector as a spare should a problem occur.

Before removing the old injector, clean the area around

the

base

the injector

help prevent any rust or debris from

falling down into the injector hole.

the injector will not lift

out easily and

held in by carbon build-up or the like, work

the injector side-to-side with the aid

the socket wrench

free it, and then lift it out.

The injector seats in the cylinder head on a copper sealing

washer. This washer should be removed with the injector and

replaced with a new washer when the new injector

installed.

Injector

Cylinder

Head

Tightening

Torque

± 4

ft-Ib

(5.5

0.5

kgf-m)

FUEL

INJECTOR

Engines

& Generators

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 65 66

Comments to this Manuals

No comments

Westerbeke 12.0KW - 50Hz EDT Installation Manual Page 33

Comments to this Manuals

Related products and manuals for Power generators Westerbeke 12.0KW - 50Hz EDT