GL: potential water leakage

[Ron Rogers]

So, is the mechanic trying to hose you? Either you know what's behind his
assertion or you should have made him tell you. All manufacturers could do
something better. So let's guess:

1) The hoses are just too old and/or improperly clamped.
2) The wrong hose has been used. The intake hose isn't wire reinforced water
intake hose by Trident or equal. The engine hoses lack the correct
temperature rating.
3) The routing of the exhaust hose is incorrect. The temperature rating of
the exhaust hose is too low. The water injection elbow fitting is occluded
with minerals and needs cleaning/replacement. The riser isn't tall enough to
prevent backflow. The muffler isn't installed properly. The final portion of
the exhaust hose is the wrong hose or should be fiberglass with a hose end.

These problems can show up on any boat. However, these hoses are very
expensive. Pretty much anybody can switch out properly routed hoses. From
the exhaust elbow to the muffler one ought to know the correct way. From the
muffler to the exhaust port, anyone can do it. One last point is that people
often disagree on the appropriate diameter for the intake and exhaust hose.
Let the engine manufacturer be your guide and make sure that there is no
opportunity for any hose to chafe.

Ron Rogers


-----Original Message-----
From: Coral Hadler

Hello Guys,

A mechanic told us the other day that we were incorrectly hosed, and we
could
easily sink.  A scary thought indeed.  But mechanics have been wrong in the
past and our boat has been plumbed like this since coming from the factory,
so
before we commit to change, we want your opinions.

Raw water comes into the boat as follows:
    Raw water strainer to engine water pump through engine to after
cooler to transmission and oil cooler to venturi tube to wet exhaust to
out.

Is this the correct arrangement or not???