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Rear caliper leak

  • Thread starter Thread starter Good Times
  • Start date Start date
G

Good Times

Guest
1982 GS850GL

Ok folks. Had a leak in the rear caliper. The interior/wheel side was leaking. Put new pistons and seals in the entire caliper. Bled it. No leak. Let it sit overnight. Stepped on the brake this morning. Leaking again.

Suggestions. What would you do at this point?
 
sure its not leaking from the banjo fitting? when you replaced the seals did you clean out the grooves in the caliper where the seal sits in? did you replace the seal in between the two caliper halves?
 
Banjo fitting is good. I did clean the grooves but thinking that I may need to go back and do that again. The more I think about it, the more I think that may be the issue. There was some build up in them. How would you clean them?

I did replace the seal in between the two halves.

Thanks AM.
 
Good Times said:
Banjo fitting is good. I did clean the grooves but thinking that I may need to go back and do that again. The more I think about it, the more I think that may be the issue. There was some build up in them. How would you clean them?

I did replace the seal in between the two halves.

Thanks AM.
Click to expand...

the grooves have to be SPOTLESS. use a small screwdriver, toothpick anything small enough to get in the groove and scrape any crud and oxidization off. wipe it round with solvent cleaner after and soak the seals in brake fluid before refitting.
 
Good Times said:
. I did clean the grooves but thinking that I may need to go back and do that again. ... How would you clean them?
Click to expand...

Agemax said:
use a small screwdriver, toothpick anything small enough to get in the groove and scrape any crud and oxidization off. wipe it round with solvent cleaner after and soak the seals in brake fluid before refitting.
Click to expand...
I use a wire wheel in my Dremel. Quick, easy, relatively painless, especially if you remember your safety glasses.
icon_eek.gif


.
 
Agemax said:
the grooves have to be SPOTLESS. use a small screwdriver, toothpick anything small enough to get in the groove and scrape any crud and oxidization off. wipe it round with solvent cleaner after and soak the seals in brake fluid before refitting.
Click to expand...

Steve said:
I use a wire wheel in my Dremel. Quick, easy, relatively painless, especially if you remember your safety glasses.
icon_eek.gif


.
Click to expand...


Well then this is my problem. I would not have called them spotless. I did use a screwdriver, but after thinking on it a little more today decided to take the dremel and wire wheel to it this afternoon.

I did coat them in brake fluid, but did not soak them in brake fluid.

We learn something everyday. I'll take user error any day over bad parts. Just so I don't have to purchase a new caliper! :)
 
Done. And so far, no leaks.

Thanks for the assistance gentlemen.
 
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