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How to Add Water Jacket
These German made Cooling Jacket
Kits are far more efficient then the standard brass or aluminum
cooling coils. With the standard brass or aluminum cooling coil, the
motor case is cooled by running colder water through the coil that
is tightly wrapped around the motor. The coil acts as a heat sick
and the water running though it, cools it drawing the heat from the
motor housing. This isn't very efficient. With this new style of
water jacket, the water that flows through this jacket actually
comes in contact with the motor casing, making the motor several
degrees cooler then a standard cooling coil. The only negative to
using this style of jacket is the higher cost, about $22.00 opposed
to the lesser expensive cooling coils that you can make for less
then $5.00 or buy for about $10.00-$15.00. But the performance of
the water jacket will far outweigh the extra cost, hands down!
Applying the Jacket to a 700
Motor!
This is a pretty straight
forward project. The only catch is, you will have to fill in the gap
in the torque ring on the 700 size motor (see picture below). The
first time I put a jacket on a 700 motor, I used an epoxy to fill
the gap. After the epoxy dried I sanded it out and slipped on the
jacket. It worked fine expect for a tiny leak.
After ditching the epoxy method, I went
to silicon sealant. Its much faster then the epoxy method. What I do
now is fill the gap with silicon and slip the jacket on while the
silicon is still wet. Here's how its done step by step.
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First step is to find out where you would like
the entrance & exit holes of the jacket, then mark the motor
with a marker.
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Remove any stickers from torque ring.
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Sand lightly any area that needs silicon.
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Next, fill the gap in the torque ring with
silicon. Use only enough silicon to fill to the top of the
torque ring.
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Now slide on the jacket, taking note where you
wanted the entrance & exit holes line them up now.
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Once its all lined up apply a small bit of
silicon where the gap in the torque ring and the jacket meet
(see picture below).
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Let everything dry for 24 hours.
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Remount you motor and if you had cooling before,
reattach the pickup and outlet tubing and your off the the Pond
to test it out! If you didn't have cooling before and need
information on water pickups and outlets check out this page.
How to add water pickup/outlets.
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And for even more efficiency,
click here to learn about adding brush cooling to your
motor.
Below is a picture of the finished project!
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