The skeg can be made from various types of metal, but the best choice is cast aluminum, which will hold up to all types of conditions in the water. It also will take a hit from a log or stump much better than ordinary sheet aluminum. The top of the skeg (underneath the gear case) is about a 1/2" thick, then as you move to the bottom, it's only about 1/8" thick (figure A). It's designed this way so that if it takes a hit, the thinnest part or the bottom will sheer off. Also, the skeg must be shaped correctly for the type of boat you have. If it's not, a tiny air bubble could start trailing behind the fin, which would end up going into the prop. This will cause your motor to lose efficiency and control. So it's important to install the correct skeg. Host John Greviskis uses an alloy skeg called Almeg-35 to demonstrate skeg repair. When cutting off the damaged section, you will need to make a zigzag pattern. This will give the welded joint more strength. It's also a good idea to make a V-notch on both pieces to give the weld more surface adhesion. The lower unit will need to be raised and filled with cool water before welding to protect the gear case from damage. In the next segment, host John Greviskis will give you step-by-step directions on repairing your skeg.
RESOURCES :
Die-cast Aluminum Skeg Replacement Parts
Bob’s Machine Shop, Inc.
Ruskin, Florida
Phone: 800-966-3493
Web site: www.bobsmachine.com
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