Operator`s manual
STOPPING PROCEDURES 
A manual pull type stop control  (tee handle 
or 
knob) is provided 
by 
the installer in a location close 
to 
the 
engine's controls.  Know the location 
of 
this control before attempting 
to 
start the engine.  To stop the en-
gine, pull out on this tee handle 
or 
knob fully and hold it out until the engine comes 
to 
a complete stop.  Push 
back on this control 
to 
return it 
to 
the engine run position otherwise the engine will not restart. 
With the engine stopped, turn the Key 
Switch 
to 
the OFF position 
(12 
o'clock). If the Key Switch 
is 
left ON, 
the battery will discharge.  The alarm buzzer will sound in the Admirals Panel but not 
in 
the Captains Panel 
should the Key Switch be left ON.  The best method 
of 
preventing the battery from discharge 
is 
to 
remove 
the key from the Key 
Switch after stopping the engine. 
CAUTION 
DO 
NOT attempt 
to 
shutdown the engine 
by 
turning the Key Switch OFF.  The Key Switch 
only 
provides power 
to 
the instrument panel: the engine will continue running even if the Key 
Switch 
is 
turned OFF. 
(An 
optional key shut-off package 
is 
available, however. This option allows the operator 
to 
shut-off the en-
gine 
by 
turning the Key Switch OFF which turns OFF an electrically run Fuel  Run Solenoid.  This electrical 
shut-off option is installed at the factory upon the specffic request/order 
of 
the purchaser.) 
Engine 
Break-In 
Procedures 
Although your engine has experienced a minimum of one hour 
of 
test operations to make sure accurate as-
sembly procedures were followed and that the engine operated properly, a break-in time 
is 
required.  The 
service 
life of your engine is dependent upon 
how 
the engine 
is 
operated and serviced during its initial hours 
of use. 
Your new engine requires approximately 
50 
hours of initial conditioning operation 
to 
break in each moving 
part in order 
to 
maximize the performance and service life 
of 
the engine.  Perform this conditioning careful-
ly, 
keeping in mind the following: 
1. 
Start the engine according 
to 
the "STARTING PROCEDURE" section found on page 39;  run the engine 
at fast 
idle while checking that all systems (sea water pump, oil pressure, battery charging) are function-
ing. 
2. 
Allow the engine 
to 
warm up (preferably 
by 
running at fast idle) until the water temperature gauge moves 
into the 
130-140° F range. 
3. 
While using the vessel, run the engine at varying engine speeds for the first 25 hours. 
4. 
Avoid rapid acceleration, especially with a cold engine. 
5. 
Use caution not 
to 
overload the engine.  The presence of a gray or black exhaust, and the inability 
of 
the engine 
to 
reach its full  rated  speed, are signs 
of 
an  overload (that 
is, 
operating the engine with a 
propeller that 
is 
too large). 
6. 
During the next 25 hours, the engine may be operated at varying engine speeds, with short runs at full 
rated speed.  Avoid idling the engine for prolonged periods 
of 
time. 
41 
Westerbeke Diesel Engines 










