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Front seal collapse

  • Thread starter Thread starter oldrookie
  • Start date Start date
O

oldrookie

Guest
I hate brakes. Just want to get that out there.

I finally have full braking power thanks to bwringer's kindly intervention. However, I did discover a leak from the master cylinder after I got the bike home. Just a slow drip from under the master cylinder. Been there and done that, so I knew it was the front seal.

As I suspected the seal had collapsed into the cup beneath it. I have two new (well, since March new) piston and cup sets, so I figured I'd just pop one out and install the the other.

Four tries later and the front seal has collapsed on install each time. It looks like this

collapsedfrontseal.jpg


How do I put enough pressure on the metal washer to get the circlip installed without collapsing the front seal? Any tips?
 
12 tries later, I think it is right.

Broke a plastic pen and slid it over the post. The pen was long enough and big enough around that I could apply even pressure while working the circlip into position.

It has only been 20 minutes, but no leaks so far.
 
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