Westerbeke 4.5 BCG Operator's Manual page 6

INSTALLATION
When installing WESTERBEKE engines and generators it is important that strict
attention be paid to the following information:
CODES AND REGULATIONS
Strict federal regulations, ABYC guidelines, and safety codes must be complied with
when installing engines and generators in a marine environment.
SIPHON·BREAK
For installations where the exhaust manifold/water injected exhaust elbow is close to
or will be below the vessel's waterline, provisions must be made
to
install a siphon-
break in the raw water supply hose to the exhaust elbow. This hose must be looped a
minimum of 20" above the vessel's waterline. Failure to use a siphon-break when ·
the exhaust manifokl injection port
is
at or below the load waterline will result in
raw water damage to the engine and possible flooding of the boat. ·
If you have any doubt about the position of the water-injected exhaust elbow relative
to the vessel's waterline under the vessel's various operating conditions, install a
siphon-break.
NOTE:
A siphon-break requires periodic inspection and cleaning to ensure proper
operation. Failure to properly maintain a siphon-break can result in catastrophic
engine damage. Consult the siphon-break manufacturer for proper maintenance.
EXHAUST SYSTEM
AVAILA9LE FROM
YOUR WESTERBEKE
DEALER .
SIPHON-BREAK WITH STAINLESS
LOOP
The exhaust system's hose MUST be certified for marine use. Corrugated Marine
Exhaust Hose is recommended. The use of this type of hose allows for extreme bends
and turns without the need of additiinal fitting and clamps to accomplish these bends
and turns .In this regard, a single length of corrugated exhaust hose can be used. The
system MUST be designed to prevent the entry of water into the exhaust system
under any sea conditions and at any angle of vessels heal.
A detailed Marine Installation Manual covering gasoline and diesel,
engines and generators, is supplied with each unit. A pdf is available
to download from our website at www.westerbeke.com.
Engines & Generators
iv