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Great White "Shark"
The Wave
Shark is a fine performer with 12 cells and a the stock 775 motor.
But as Fast Electric owners we are constantly pushing the limits of
our equipment by nature! When increasing the cell count or upgrading
the motor the shaft needs to be supported a bit more, to get the
most performance out of our upgrades. This is a very easy upgrade.
One note 14cell with a stock 775 motor is going beyond the 12cell
motor rating is frequently done but motor heat needs to be addressed
with a cooling system. Even then check for heat.
You will need a small piece of
sandpaper, a good epoxy, 1" of 3/16ths brass tubing and a 1"x 1"
piece of wood or thick plastic.
First start by removing the drive shaft
from the boat. When doing this make sure to leave the motor coupler
on the motor and remove the shaft itself only. After this is done
check out the picture below and scuff up the entire area. We are not
trying to flatten this area, just remove the shine so that the epoxy
will get a bite into the abs. After your done clean the area with
rubbing alcohol or household cleaner.

After you have cut your tubing to a
length of about 1", scuff up the outside of the tubing. Then
partially slide the shaft back in and side the tubing back on.
Check to make sure the tubing spins freely. If it doesn't check to
see why. Most likely there's a bur at the end of the tubing from
when you cut the tubing.

At this point we are going to
cut a piece of abs or wood to support the new tube. Start by
drilling a 3/16ths hole in the 1" x 1" material you choose near the
top center. Then cut away at it until it fits loosely. The reason
for the loose fit is that we don't want any added pressure pushing
on the propeller shaft causing un-needed drag. Once your done it
should look something like this.
Side the support onto the brass tubing
and get it in the general place you want to place it. There is not
one specific perfect place. Once the support is on the shaft, finish
sliding the shaft into the motor coupler and tighten the setscrews
on the coupler. Once everything is lined up, mix your epoxy then
epoxy the support in place. Allow to dry 24 plus hours dry. Before
running again apply a light grease or oil to the new support tube
area.

Running pictures and video will
be up soon! |