Engine Disassembly; Removal Of External Parts And Subassemblies - Westerbeke 9.0 BCG Technical Manual

ENGINE DISASSEMBLY
This section describes the disassembly of the engine when performing a complete overhaul of the unit. The
procedures which follow include the disassembly of subassemblies, inspection of their components parts,
repair or replacement of these parts (if necessary), and the reassembly of the subassemblies.
Removal of External Parts and Subassemblies
1. Loosen the belt guard's thumbscrews and remove the engine's belt guard from its brackets at the front of
the engine.
BCG 4.8KW BELT GUARD
BCG 6.SKW AND BTG 9.8KW
BELT GUARD
2. Remove the starter motor and circuit breaker assembly. Examine the starter and have it repaired or
replaced if necessary.
3. Remove the heat exchanger and its related hoses and mounts from the front of the engine. Have the heat
exchanger cleaned and tested at a local automotive radiator repair shop, or replace it if necessary.
4. Remove the exhaust manifold and related hoses as a unit Disassemble and inspect these parts.
5. Remove the sea water pump, the drive belt, and the sea water pump's mounting brackets.
6. On the BeG 6.5KW engine, remove the idler pulley and the fresh water pump's drive belt.
7. On the BTG 9.0KW engine, remove the alternator, the fresh water pump's drive belt, and the alternator's
mounting bracket.
8. Disconnect the linkage arm between the governor and the carburetor at the ball joint (carburetor end of
arm); remove the governor and its mounting bracket.
9. Remove the fresh water circulating pump's pulley.
10. Remove the fresh water circulating pump.
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Westerbeke Generators