Rear calliper/handbrake rebuild

Post by **Micron** » Mon May 20, 2024 11:43 am

I have to admit that it's not the best picture to see what you are referring to!

From what I can remember, I don't remember the nut you are talking about, from what I can remember, you fight with the seals and pistons, then once pushed in by hand, it should meeting the shaft in the centre, which you then wind on the the piston using the 4mm Allen key.

If you can get some better pictures that would be great.

Post by **ryanandcharl** » Mon May 20, 2024 11:58 am

Hi,

A difficult one to convey so I apologise for that

Basically I want to know how far to seat/screw down this “nut” that I’ve labelled. I’ve drawn option 1 or option 2 (opt 2 being fully seat)

Any confusion do let me know haha

Post by **Micron** » Mon May 20, 2024 12:37 pm

I am still at a slight loss in respect to the nut, when you look at the piston, is there a threaded part which the that shaft in your drawing will screw into, because all I ever remember in the body is a circlip, which can be a pain to get out, but has to be removed to renewal the seals, unless your callipers are of a different style?

Post by **ryanandcharl** » Mon May 20, 2024 12:54 pm

Ok so it’s more of a push into the piston rather than screw/thread. There are no threads on the inside of the piston (image)

Post by **Micron** » Mon May 20, 2024 12:58 pm

Maybe the nut should be fitted into the piston, which would allow the piston to be screwed on to the post in the body?

Post by **ryanandcharl** » Mon May 20, 2024 4:11 pm

Ok so I think I’ve got it…

Taken the nut/screw-in piece out as it had to be tapped into the piston, then screwed it into the resus. Issue was that it had to be tapped or pressed into the piston and was a tight fit.

Seems to be working just need to follow prior posts to tighten the slack. Thanks again

Post by **Micron** » Mon May 20, 2024 4:29 pm

That arrangement still looks strange to me, but maybe it's just a different manufacture?
When I can and If I remember, i will try to look at some of mine

Hopefully it's sorted now

Post by **ryanandcharl** » Mon May 20, 2024 4:43 pm

Interesting, when looking online I found a few variants of mechanism so wasn’t sure. Thanks for that

The handbrake now works I just need to correct the 15+ clicks to get it on the road

Post by **jrh** » Thu May 23, 2024 8:32 am

The rear brake will always fail-safe , ie work.
Problem will occur when you release the handbrake .
It won't.
Because the little shaft seal leaks , allowing water/sallt to corrode ,etc.
THAT IS WHY YOU NEED THE........................DENSO tape .

Post by **mojo98** » Thu May 23, 2024 4:08 pm

jrh wrote: ↑
Thu May 23, 2024 8:32 am
The rear brake will always fail-safe , ie work.
Problem will occur when you release the handbrake .
It won't.
Because the little shaft seal leaks , allowing water/sallt to corrode ,etc.
THAT IS WHY YOU NEED THE........................DENSO tape .

and that`s why I`ve bought two rolls of Denso tape earlier this week, got to have plenty in store

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Rear calliper/handbrake rebuild

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