I rebuilt my rear caliper and worked great for about a month. Then it locked up again and upon inspection, the top piston rings for both pistons were broken which caused the caliper to lock All parts were cleaned and new seals installed and I followed the how to article provided on this site step by step. I have purchased new seals and will replace this weekend.
Any idea what may have caused the piston seals to give? Any other suggestions to add for installing new seals and pistons?
Information and questions on GL1100 Goldwings (1980-1983)
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1982 GL1100A Aspencade (sold)
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Pitted pistons can cause the seals to break down - but I have never seen locked up brakes caused by a broken down seal. You should take a look at the master cylinder return port (see How to rebuild your rear master cylinder, starting at step 17a) and give it a cleanout - that's usually what causes the brakes to lock up.
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- Motorcycle: 1982 GL1100A Aspencade
Your were correct. I removed the master cylinder and gave it a much needed cleaning. The pinhole was clogged as you suggested. I put it back together and the rear brake works great without sticking. Thx. The do it yourself information is a tremendous help and easy to follow. Anything I can do to keep this classic rolling.
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