Results 1 to 3 of 3

Thread: Need help figuring out how to remove rear brake piston cup please

  1. #1
    Registered User
    Member ID
    Join Date
    Aug 2003
    Portland, Oregon USA

    Default Need help figuring out how to remove rear brake piston cup please

    I'm trying to rebuild the right rear brake cylinder and can't figure out how to get the metal disk off so I can replace the rubber piston cup without destroying the metal disk.Click image for larger version. 

Name:	brake piston.jpg 
Views:	34 
Size:	68.8 KB 
ID:	72600
    Could someone please help me out?
    Thank you!

  2. #2
    Boat Anchor Repairman Captain Obvious's Avatar
    Member ID
    Join Date
    Jul 2011
    Philadelphia, PA


    What metal disk are you talking about? Is there a disk in your picture somewhere? Everything looks black... Can't make out any seams.

    Are you talking about the piston itself maybe? The part that the rubber seal slips onto?

  3. #3
    Low Budget/High Value
    Member ID
    Join Date
    Oct 2009
    Washington County, OR


    Datsun 240Z/260Z/280Z Rear Brake (Drum Brake) (To Jul.-'76)

    The Service Manual is always useful. Better drawing too.

    Looking at the pictures and having worked on similar things, I think that the seal you're trying to replace just slips off over what you're calling the metal disc. The "metal disc" is actually the top of the piston (as CO suggests above). It's all one piece. Slip a thin screwdriver or pick under the rubber and it should peel off. It's doughnut shaped.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	1973 Rear Brake Cylinder.PNG 
Views:	34 
Size:	355.3 KB 
ID:	72607  
    Last edited by Zed Head; 07-06-2014 at 10:34 PM.
    1976 280Z, with some minor modifications

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Brake caplier piston stuck
    By tamo3 in forum Wheels, Tires and Brakes (S30)
    Replies: 9
    Last Post: 04-16-2013, 11:10 PM
  2. figuring out rear end
    By 280zgod in forum Suspension and Steering (S30)
    Replies: 3
    Last Post: 11-22-2004, 12:49 PM
  3. Can't remove the brake drums!
    By McGuinn in forum Wheels, Tires and Brakes (S30)
    Replies: 3
    Last Post: 11-17-2003, 04:28 PM
  4. 4-piston brake conversion questions
    By Seanh in forum Suspension and Steering (S30)
    Replies: 32
    Last Post: 07-08-2003, 07:50 AM



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts