Westerbeke BCD 4.4KW Operator's Manual page 34

Marine diesel generator sets

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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 33. Then, while keeping the

PREHEAT button engaged, the START button is depressed to crank the engine.

Combustion Chamber

NOTE: The START switch 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 Generators

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