Operator`s manual
PREPARATION FOR STARTING 
This section of the manual provides the operator wtth preparation, initial starting, break-in, starting (cold 
or 
warm), and stopping procedures.  Follow the procedures as presented, 
for 
the conditions indicated, and 
your Westerbeke engine set 
will give you reliable performance and long service life. 
Fill 
your 
engine with oil  up 
to 
or 
near the upper limn on the 
dipstick  (the  installation  angle  may  have  an effect 
on 
the 
dipstick reading). 
Select readily available lubricating oil with 
an 
API 
specification 
of 
CC 
or 
CD 
and an SAE number suitable 
for the temperature in 
your 
operating area (see page 60). For 
the quantity 
01 
oil  needed in your engine,  refer 
to 
the "SYS-
TEM SPECIFICATION" section 
01 
this manual, page 13 for the 
W 
35B,  page 16 
lorthe 
W 38B, and page 19 for the W 42B. 
Fill the 
JS transmission 
to 
the FULL mark 
on 
the dipstick with 
the correct lubricant.  (The 
JS transmission takes 1 U.S. qt 
or 
1 liter 
of 
oil.  Refer 
10 
your engine's "SYSTEM  SPECIFICA-
TION" 
section 
of 
this manual 
lor 
a listing of oil grades 
to 
be 
used in this engine.) 
UPPER 
LIMIT 
~~:;;;:;_;:;;_~::_~ 
__ 
(_HORMRL 
LEVEL) 
LOWER 
LIMIT 
Each unit is supplied with a coolant recovery kit (#24977) 
as 
standard equipment, 
to 
which the following ap-
plies: 
A. 
Remove the pressure cap from the engine's exhaust manifold and slowly fill the engine's 
COOling 
sys-
tem with a mixture of water and antifreeze 
suitable for your temperature zone. (See the "COOLING SYS-
TEM" 
section 
01 
this manual, page 53.) Operate the engine and observe the coolant level 
in 
the manifold. 
Maintain this level 
to 
the base 
01 
the Iiller neck. Once the engine reaches its operating temperature (170 
-
190' 
F), 
make sure there is coolant flow 
to 
the domestic water heaters when installed.  Top off the cool-
ing system 
and Instalilha pressure cap. 
8. 
Make sure the plastic recovery tank is properly mounted near the unit (with the bracket provided), in a 
location where it can be monitored and filled easily. The recovery tank should be mounted at manifold 
level 
or 
above. In these installations that require 
it, 
the plastic recovery tank can be mounted below the 
exhaust 
manifold's level. 
c. 
Add coolant 
to 
the  plastic tank after the engine has  been  started  and  after the engine's operating 
temperature has been reached 
to 
make sure all air is expelled from the manifold and the engine's cool-
ing system.  With the manifold filled and the pressure cap installed, fill the plastic recovery tank half full. 
Monitor daily and add coolant as needed. 
Fill the fuel 
lank 
with a good grade of NO.2 diesel fuel and prime the fuel system up 
to 
the engine (see page 
44).  When 
returning fuel is free 
01 
air, the engine's fuel system is bled and the engine is ready 
to 
start. 
NOTE:  When the PREHEAT switch is depressed, the glow plugs in the cylinder head are ener-
gized; use the PREHEAT switch intermittently 
to 
prevent overheating the glow plugs. 
Make sure the 
Installation Checks have been made in accordance with those specified 
in 
the "INSTALLA-
TION CHECKS" 
section 
01 
this manual (refer 
to 
page 21). 
33 
Westerbeke Diesel 
Engines 










