Westerbeke BCD 4.4KW Manual del operador descargar pdf (Pagina 75)

Injection

Pump

Timing

Adjustment

(Spill

Timing)

your

engine's fuel injection timing is not properly adjusted, the engine will not operate properly and will be

difficult

start. Have the injection pump delivery rate checked

a well-established fuel injection shop. Ad-

just the injection timing as

follows:

NOTE: The fuel shut-off lever must be in the RUN position while making the adjustment

fuel will flow from the fuel injection pump.

Refer

the illustration below when servicing the fuel injection pump. First remove the high-pressure fuel

line from between the No. 1 injector and the No. 1 fuel delivery valve holder. Remove the No. 1 fuel delivery

valve holder and remove the delivery valve spring beneath the holder. Reinstall only the delivery valve holder

and reattach the high pressure fuel

line

the delivery holder. Attach it so that the end that would connect

the fuel injector is pointing away from the engine. Fuel will flow from this line during the timing check.

Rotate the engine's crankshaft in its

normal direction

rotation

posi-

tion piston No. 1 at the beginning

its compression stroke

Move the throttle lever

its full open

position and operate the electric

lift

pump. Slowly rotate the crankshaft

clockwise (as viewed from the front),

catching the fuel from the

No.1

fuel

line, until the instant the fuel com-

pletely stops flowing (no drips). At

this instant, the 19

BTDC timing

mark

the

crankshaft

pulley

should be directly aligned with the

timing indicator on the front of the

gear case (refer

the illustrations

on pages

70 and 71).

DELIVERY

VALVE

HOLDER

SPRING

DELIVERY

VALVE

PLUNGER

SPRING

FUEL

CONTROL

RACK

TAPPET

If the specified injection timing (19

BTDC) cannot be attained, adjust the timing

increasing

decreas-

ing the thickness

shim material under the injection pump's mounting flange

change the injection timing

point. Changing the shim thickness

0.004 inch

(0.01

mm) changes the injection timing

approximately

one degree. To advance the timing, decrease the shim thickness, as required. To retard the timing, increase

the shim thickness, as required. Refer

your generator's Parts List

for

shim part numbers.

Westerbeke Generators

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 93 94

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Westerbeke BCD 4.4KW Manual del operador Pagina 75

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