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MG TD TF 1500 - Brake bleed nipple leak.
I'm experiencing some difficulty in getting the brake nipple to seal after bleeding the brakes, it weeps fluid from around the threads and from the bleed hole.
The brass banjo is at least 40 years old and is clearly worn. Moss don't apparently sell these parts any more so the replacement option has gone.
Has anyone any ideas or suggestions that might cure the problem please.
|Mike, I'd suggest that you remove the bleeder and push a little more fluid through it. You mave have gotten some bits of scale on the seat that won't let it seal up. If you cranked it down good and hard and there was something in the way, then you may have to dress the nipple sealing surface a little. Good luck.|
Thanks for the reply. I've experienced this problem before and cleaned very carefully the banjo and replaced the two nipples. (It's a problem on both sides).
There was some debris in the banjos but I think I got it all. I probably need to slightly scale the banjo union - have you any experience of the best way to do this an with what? I did wonder about using a small drill by hand.
If you have a brake tube nut you can use it to centre a twist drill to reface the seat. Get a drill that is a nice easy fit and sharpen it to a near flat profile,it doesn't matter if it is not perfect as only the highest edge will cut. Just spin it with fingers only till you get a nice clean seat edge.If you are stuck for a tube nut I have a bagfull.
|PS. dont go too mad as bleed nipple will thread bind if you go too deep.|
Abingdon spares sells these
|Hi Ray and Tim,|
Thanks for the info. I think I have some tube nuts Ray, but if not I'll contact you.
|Mike I don't think I'd use the drill bit on the first go. I'd be afraid It might gouge it worse than it already is. I think I try a dremmel stone and try and shape it to the nipple sealing surface and then try a little light dressing with the stone.|
A Dremmel stone was my first thought I have to admit, simply because if the work is overdone, then getting a replacement banjo or finding someone to build up the brass then re-work it will, I think, prove very difficult.
Sorry about your dificulties - I've used low melting point silver solder to build up brass - oxy or heavy duty propane torch needed. Could you find a 'hobbyist' in your area to help, if you don't want to do it yourself?
|J C Mitchell|
Have you tried moss-europe according to their catalogue they still sell them part no. 27H7189 at £15.61 each
|C A Pick|
Thanks for the suggestion I'll bear that in mind if things don't go according to plan!
Chris,I need part number 180-680/690 which Moss used to sell at about £70 each as I remember, but no longer do.
|Mike; Found one of the fittings in my spares. Let me know if still need it. Dan Craig|
Thanks for the kind offer - I'm hoping I won't need to bother you.
This thread was discussed between 14/04/2009 and 22/04/2009
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