YOUR
BOAT
TROUBLESHOOTING YOUR SPEEDOMETER: The most common cause
of
an
improperly functioning speedometer
is
water borne debris such as grass, weeds, sand
or
mud lodged in the pick-up tube. The speedometer may fail to register
or
it may hover
at a particular speed while the boat is at rest. This indicates a pick-up tube obstruction.
In many cases the obstruction can be dislodged by backing up quickly. If that fails, use
air pressure
to
clear the tube. Reaching under the dash, remove the rubber tubing from
the back of the speedometer and apply air pressure with a volleyball
pump
or
other air
pressure source.
Do
not exceed
25
p.s.l. If this method fails
to
dislodge the
obstruction, trailer your boat and remove the hose at the transom. Using a needle,
remove the obstruction. For stubborn pieces, remove the brass cap on the end (using
needle nose pliers) and clear the tube. Re-install the brass cap.
If the speedometer reacts slowly, a leak in the system may be the cause. Most
frequently, the leak is located at the connection of the tubing to the speedometer head,
again under the dash. Disconnect this tube and apply air pressure with a volleyball pump
or
other controlled source, not exceeding 25 p.s.i. Blow air through the tube until the
water is expelled. Attach the tube to the back
of
the speedometer head, making certain
that the connection is air tight. If the tube end is stretched
or
over-sized, trim off 1/2-inch
and reconnect.
Note: Some Correct Craft models have a locking nut at the back of
the speedometer. This nut must be loosened to disconnect the hose.
Damage can occur if a malfunction
is
not immediately attended. If you cannot remedy
the situation, contact a Correct Craft dealer
or
another reputable marine mechanic.
WINTERIZING YOUR SPEEDOMETER: As a precaution, due to season freezing
temperatures, winterize your speedometer by removing
all
water from the stabilizer tube
to eliminate the danger of damaging the system. Disconnect the tube at the connection
to the speedometer under the dash and apply air pressure through the system. Introduce
enough air
to
clear the system, but
do
not exceed 25 p.s.i.
G090192
9.6
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