TP-5592 7/96 Installation 6-15
Mid/Below Waterline
FollowABYC P-1.8.c recommendations for installing an
anti-siphoning provision to prevent raw water entry into
the engine. Use the siphon break if exhaust manifold
outlet is located less than 9 in. (23 cm) above waterline
when craft is loaded to maximum capacity. Install
siphon break, see Figure 6-15, at least 1 ft. (31 cm)
above waterline.
NOTE
Failure to properly install a siphon break will cause
engine damage and may void warranty.
1
DA-250000-H
1. Cut hose and connect siphon break and hardware
Figure 6-15. Siphon Break Connection
Locate siphon break above highest point in exhaust line
between the heat exchanger and the exhaust mixer.
See Figure 6-15 for siphon break connection. Support
the siphon break and hoses to maintain proper position
andfunction. Mount the siphon break directly vertical of
its connection to generator set where possible.
Otherwise,allowaslightoffsettoclearstringersorother
permanent structures. Protect the siphonbreak airinlet
from dirt and debris.
Mountatypicalsilencer’sbasenomorethan4ft.(1.2m)
below highest point in exhaust line. Attach a separate
wood mounting base to hull stringers or other suitable
structure. Secure silencer to hull using silencer
manufacturer’s recommendation. Mount silencer with
outlet not more than 10 horizontal ft. (3 m) from engine
exhaust manifold outlet. Use UL-listed marine exhaust
hose.
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