I have been working on this Arctic Cat Sno Pro 600 on and off for a while now. Today I was finally able to wrap up the project. I will give you a quick recap of the situation. The machine quite running last spring, the owners then left it sitting on the beach where it stopped. After a whole summer of being very close to the salty ocean they brought it to me. I figured out that the initial problem was a faulty fuel pump. After changing the very expensive ($447!) fuel pump I started to fix all the rusted and corroded parts.
The worst corrosion was on the brake system. The brake is made from aluminium and steel, that is a bad combination in a salt water environment. When I first pulled the machine in the shop the brake was locked up solid. After a liberal soaking in Deep Creep penetrating oil and a lot of pounding I was able to get it to turn by hand. I thought that it would loosen up with use, but when I test drove the machine it was dragging and heating up the rotor.
After a lot more oil and pounding I was finally able to remove the rotor. Once I had the rotor removed I put the caliper back together and used the brake pressure to push the pistons out of the calipers. The top photo shows the back half of the disassembled caliper in place on the machine. The caliper is actually part of the same casting that holds the bearing for the drive shaft. The rotor goes on the end of hollow splined shaft.
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