Author Topic: 650 b rake rebuild  (Read 453 times)

0 Members and 1 Guest are viewing this topic.

Offline wardenerd

  • Expert
  • ****
  • Posts: 816
  • '77 550F '81 650C
650 b rake rebuild
« on: June 02, 2010, 11:35:13 AM »
have new lines coming and the calipers are apart.  one piston needs to be replaced...on order.  question  How tight should the seal fit against the piston?  after cleaning and smoothing and using the old seal the piston will go into the caliper easily with some manual pushing.pulliing back out it is pretty tight needing pliers to pull out past half way. Prior to halfway out it is still a tight fit.  Too Tight?