[Gori 2-Blade Saildrive Propeller Installation and Maintenance Instructions, 6/21/2022]
Distributed By
AB Marine, Inc ▪ 747 Aquidneck Ave ▪ Middletown ▪ RI 02842
Tel: 401-847-
7960 ▪ Fax: 401
-849-0631
Email:
Sales@AB-Marine.com
▪ Website: www.AB
-Marine.com
Cleaning and Maintenance
Annual Maintenance
1.
Clean your propeller with an acid cleaner such as Barnacle Buster
–
per
MSDS, use 85% phosphoric
acid with concentration of 5%-20%.
When pressurewashing, using Scotchbrite, wire brush/wheel, bead
blaster or
120 grit paper, be mindful of, i.e., do not “attack”, the blade edges.
Propeller blades “work” with attached water flow
- 1mm of growth on a blade
causes loss of approximately 12% of its efficiency - so keep the blades clean.
2.
Remove any growth on the blade gear teeth.
3.
Smear with your finger a light coating of a Lithium based waterproof grease on the teeth/forks/blade
root - the contact faces and moving parts. This stops surface oxidizing over the winter and
ensures
smooth operation
.
4.
If you have disassembled your GORI make sure that the Jacket/Blade assembly threads are greased so
that any calcium build up is negated in the thread.
5.
Change the anodes at 55% wastage, i.e. 45% is remaining (
Saildrive)
6.
Paint with hard anti-foiling paint, ablative antifouling and a silicon based epoxy (i.e. PropSpeed), zinc
spray or any other product that says it negates/stops growth (Lanolin etc) can be used.
7.
Ensure that the coating is smooth and does not impair the operation of the blades (gear teeth,
bearings, seals etc).
Underwater Installation
Underwater installation is NOT recommended, but can be accomplished by a skilled
diver and appropriate tools and underwater fastener adhesives
Loctite 248
is a medium strength Threadlocker Stick that is sold to be used under water. Apply the 248
to clean dry threads out of the water and make sure the wax based product is thoroughly pushed into all
of the threads (no air gaps) before taking the fastener below the water. It takes 24hrs for full cure after
installation. Loctite 248 blue stick can be purchased from Fastenal
http://www.fastenal.com/web/locations.ex
Vibra-Tite VC-3
is an automotive product that can be used under water. Apply to the fastener threads,
let dry for 10-30 minutes and install below water.
VC-3 is available from most auto parts stores - we have
the VC-3 in stock (used with our Shaft Shark line cutter) and can ship the same day as your order.
Do Not Use regular thread locking glue not intended for use underwater
–
attempts to
apply it under water will ultimately fail/wash off
Bondchem WT03 Thread Locker liquid glue, supplied by Gori, and Loctite Blue 242 liquid (or Red) cannot
be used under water - they cure anaerobically
and must be applied to a clean dry surface as per their
instructions.
