Front Discs

[puffernutter]

When I started this restoration some 2 years ago (which I know is very short by some standards!) one of the first things I did was to refurbish (new seals) etc. the front calipers. I have now finally replaced all my brake lines and found a connector for the PWDA switch (still can't find the matching wire on the car though - but that's another story).

So tonight we bleed! Bleed nipple open, pedal depressed, brake fluid all over the floor (leaking around my refurbished seals!) Now looking at the brakes I will need to buy new discs and pads, so rather than trying another set of seals etc., should I just buy two new (reconditioned) calipers. For the sake of a few quid, it will guarantee that the work has been done to a good standard (I hope)

Any thoughts?

Cheers

Peter

[martin]

Hiya Peter, it's very unusual for re-sealed calipers to fail, are you sure the piston seals have failed, or could it be the bleed nipples (excuse my language) or the flexi ? If you're sure, new or recon calipers are never a waste of money. Martin.

[puffernutter]

Yes, positive. I've removed the caliper from the car and you can clearly see where it is coming out between the outer seal and the piston. It may be worth another seal kit and have another go - it was the first time I'd done this one (I've done many Land Rovers in the past).

Cheers

Peter

[drek1]

if its been cleaned up before and resealed then i would for a few quid try resealing it and if that dont work then get new/recon callipers for it...del.......

[puffernutter]

if its been cleaned up before and resealed then i would for a few quid try resealing it and if that dont work then get new/recon callipers for it...del.......

I've bought another set of seals, including the "bridge seal" so I can split the caliper this time and get a clean go at the recesses. I'll take my time and see if I can do it better this time. The pistons were new last time, so I'll recycle those.

Cheers

Peter

[martin]

I've bought another set of seals, including the "bridge seal" so I can split the caliper this time and get a clean go at the recesses. I'll take my time and see if I can do it better this time. The pistons were new last time, so I'll recycle those.

Cheers







Peter

Sounds good, keep us up to speed. Martin.

[puffernutter]

Next problem!

Caliper split, re-using the pistons (which were new a couple of years ago and still in fine fettle). There are two rubber seals per side. One is square section solid rubber, the other has a sort of "V" on one face and flat on the other. One goes part way down the cylinder and the other at the top. Which one goes where and which way round?

Cheers

Peter

[jleyton]

Next problem!

Caliper split, re-using the pistons (which were new a couple of years ago and still in fine fettle). There are two rubber seals per side. One is square section solid rubber, the other has a sort of "V" on one face and flat on the other. One goes part way down the cylinder and the other at the top. Which one goes where and which way round?

Peter

Hi Peter,

The one with the 'V' is the dust seal that sits on the edge under the metal cover ring - V facing the caliper. The square section seal is the main seal. It can be difficult to fit the dust seal without damaging the retaining ring.

I've got some fitting instructions for these although you probably won't be able to read them - if not, if you send me a PM with your email address then I can send them to you.

Cheers

Julian

PS I now see that you can read it ok. They call the dust seal a 'wiper seal'. Although they refer to the special tool I have managed this without. Good luck.
CaliperPistonSealInstructions.jpg

[puffernutter]

Many thanks, I can read it fine!

Cheers

Peter