Jump to content

Rim Brake Leaking From The Cylinder?


STEVE-0

Recommended Posts

Hi Guys,

Thought I'd share this with you. I've got an old style cnc'ed brake lever. It was leaking so bad I had to bleed it every ride, although I've finally found a solution thanks to my plumbing friend.

Take the lever apart and remove the piston.

Pinch the seal to allow you to remove it easily.

Measure some PTFE tape for 2 rotations around the grove where the seal sits and cut.

Now fold this length-ways twice to fit the groove.

Lay it in and wrap around.

Return the seal which will now be raised and prevent further leaking.

Twist the seal around so the PTFE tape beds in.

Resemble brake.

I wish someone could have given me the solution...

Let me know if this works for you! Also depending on your leak, vary how much PTFE tape you use...

Steve-o x

Edited by STEVE-0
Link to comment
Share on other sites

Or replacing the seal usually works

Doesnt always work.

Mate of mine used this very method on an old Echo SL lever unit.

Replaced the o ring several times to no avail, then used this method.

3 years on the brake hasnt leaked once.

Link to comment
Share on other sites

See I'm a stickler for making sure its right, if the O' ring didn't work and replacing the piston n barrel still didn't fix the problem then I'd replace the lever. Only because the one time you push yourself will be the one time it fails...not a risk I'm willing to take for the sake of a few quid. Each to their own like and if it works for you then it works for you, but I'd rather have 100% confidence in my brakes. Cause you never know.

Link to comment
Share on other sites

Well mine never failed to the stage where to brake had no power.

I main reason I use this lever is I snap the magura 05 levers so easily due to the force applied during hooks. Hence a cnc'ed lever is the perfect choice for me. Plus, I've also managed to add the magura 4 finger lever to it so its super powerful. Just what Stan did a couple of years back.

I'm super happy with it anyway and glad to hear it has given other people a long term solution!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...