Installation manual
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 manifold 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 
The exhaust hose must be certified for marine use. The system must 
be 
designed to 
prevent water from entering the exhaust under any sea conditions and at any angle 
of 
the vessels hull. 
A 
detailed 
40 
page 
Marine 
Installation 
Manual 
covering 
gasoline 
and 
diesel, 
engines 
and 
generators, 
is 
available 
from 
your 
WESTERBEKE 
dealer. 
Engines & Generators 
. 
IV 










