BX bleed screw

ohms69 · Post by **ohms69** » 24 Feb 2004, 20:27

What size is the brake bleed screw on the bx calipers?[:)]

tomsheppard · Post by **tomsheppard** » 24 Feb 2004, 20:41

It is an 8mm but do not use a spanner of any description to loosen it.
First Wire brush, then loosenin' juice, then A SIX SIDED SOCKET. This will save you at least one caliper.

ohms69 · Post by **ohms69** » 24 Feb 2004, 22:22

Cheers mate,
worked perfectly on 3 of the calipers and on the drivers side rear it stripped the head[:(]
How can this be sorted?

tomsheppard · Post by **tomsheppard** » 24 Feb 2004, 22:56

You won't win. Go to the scrappy. you'll only need one half of the caliper as long as it all remains clean.

oilyspanner · Post by **oilyspanner** » 24 Feb 2004, 23:20

I always heat the caliper and bleed screw with a blowlamp before I touch em and still some of them break. I agree about the six sided socket though, If the thing is only rounded off how about some small mole grips , if you can get it out a new bleedscrew will save the day.
Stewart

ohms69 · Post by **ohms69** » 24 Feb 2004, 23:41

Cheers stewart,
A blow lamp and mole grips it is... Failing that, looks like a visit to the scrappy could be inorder1[:D]

AndersDK · Post by **AndersDK** » 25 Feb 2004, 02:25

It's when you're stuck in problems like this - that fantasy helps you [:)]
Especially if MOT is scheduled next day [8D]
- first thing is to get the bleed nipple out - heat & patience does the trick. A broken bit in caliper means troublesome drilling and oversize bleednipple. Almost any German car uses 10mm metric bleed nipples - available all over.
If you take that route - and the caliper pressure feed pipe is willing to cooperate - then remove this pipe and connect a low pressure air supply.
This will blow out drilling & threading bits. Of course you must wear protective goggles.
This way you dont need removing the caliper - and a broken nipple is no disaster - just a delay.