Chapter 6 Cooling Water System
7. Kingston Cock (Optional)
i4LHA Seriei
7.
Kingston
Cock
(Optional)
7-1
Construction
The Kingston cock, installed on the
bottom
of the hull,
controls the intake of cooling water
into
the boat. The
Kingston cock serves to
filter
the water so
that
mud,
sand,
and other foreign matter in the water does not enter the
water pump.
Numerous holes are drilled in the water side of the
Kingston cock, and a scoop strainer is installed to prevent
the sucking in of vinyl, etc.
7-3
Inspection
When the cooling water volume has dropped and the
pump is normal, remove the vessel
from
the water and
check for clogging of the Kingston cock.
If water leaks
from
the cock, disassemble the cock and in-
spect if for wear, and repair or replace it.
Suction pipe
Hull
Kingston cock cover
Cock
Screw
Kingston cock cover
Screw
7-2
Handling
precautions
Caution the user to always close the Kingston cock after
each
day of use and to confirm
that
it is open before
beginning operation.
If the Kingston cock is
left
open, water
will
flow
in reverse
and the vessel
will
sink if trouble occurs
with
the water
pump.
On
the other hand, if the engine is operated
with
the
Kingston cock
closed,
cooling water
will
not be able to get
in,
resulting in engine and pump trouble.
6-16
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