Operator`s manual
Description 
of 
Starting 
System 
Westerbeke diesel  engines use electric starters assisted  by 
glow 
plugs for both normal and cold weather 
starting. The figure 
below shows a cross-sectional view 
of 
one cylinder.  The 
glow 
plug is located 
in 
the com-
bustion chamber so that its 
tip 
is in the injector nozzle's spray path. When the 
glow 
plug is energized 
by 
the 
PREHEAT button, the plug glows red at the tip and assists 
in 
igniting the fuel.  The result is a rapid start with 
less wear on the starter. 
This system is 
common 
to 
Westerbeke Diesels. The start 
cirCUITry 
is designed so that the PREHEAT button 
must be depressed for the time specified 
in 
the "Preheat" chart shown on page 
39. 
Then, while keeping the 
PREHEAT button engaged, the START button is depressed 
to 
crank the engine. 
GLOW 
PLUG 
Combustion Chamber 
NOTE:  The START button will 
not 
energize unless the  PREHEAT button is depressed. When 
depressing 
the 
preheat switch, we are activating the glow plugs in the cylinder head, so use 
the preheat intermittently so as 
not 
to 
overheat the 
glow 
plugs. 
Westerbeke 
Diesel 
Engines 
34 










