Operator`s manual
Servicing 
Alter 
Initial 
50 
Hours 
01 
Operation 
1. 
Change the engine's lubrication oil and oil filter. 
2. Replace the fuel filter element in the electric fuel lift 
pump 
and in the engine-mounted secondary fuel fil-
ter. Change the fuel filter element and clean the optional filter/water sediment or, H a separator has been 
installed, and 
il 
the model type permits cleaning. 
*3. Torque the cylinder head bolts. 
*4. Adjust valve clearances. 
5. 
Adjust the alternator and water 
pump 
drive belt tension, if required. 
6. Lubricate the throttle, the RUN linkage cable, and the transmission's remote control cable. 
7. Change the transmission's oil. 
8. Adjusts the engine's idle speed as needed. 
9. Check 
to 
make sure the propeller shaft is securely connected 
to 
the transmission coupling. 
Servicing 
Alter 
Every 
100 
Hours 
of 
Operation 
1. 
Change the engine's lubrication oil and oil filter. 
2.  Adjust the alternator and water 
pump 
drive belt tension, if required. 
3. Check the transmission fluid 
or 
oil level. 
Servicing 
Alter 
Every 
250 
Hours 
of 
Operation 
1.  Replace the fuel filter elements 
in 
the electric fuel lift 
pump 
and in the engine-mounted secondary fuel 
filter. 
2. Change the transmission's oil. 
Servicing 
Alter 
Every 
SOO 
Hours 
01 
Operation 
*1. Torque the cylinder head bolts. 
*2. Adjust the valve clearances. 
3. Drain, 
flush, and refill the fresh water cooling system.  The illustration on pages 6 
to 
11 
show the heat 
exchanger and the zinc anode location.  The drain plug 
for 
the fresh water system is next 
to 
the zinc 
anode. 
*4. Check the condition of the starter 
motor 
drive pinion; lubricate the pinion. 
83 
Westerbeke 
Diesel 
Engines 










