Rear Caliper Bleed Nipple

[Grizzly]

A few weeks ago I decided to give the rear brake a wee bleed - felt a bit spongy?. Anyway, the bleed nipple decided to shear off - I've used the nipple before so I don't know if I perhaps over-tightened it or it's had a knock? but as soon as I touched it with the spanner off it came!!
I noticed that the nipple is actually fitted in a hex-head plug screwed into the caliper - I checked and this comes out easily and is, in fact, sealed by a recessed o-ring, so I thought the sensible thing to do was order a new nipple and a new plug - but when I spoke to the dealers they told me the plug must be considered part of the caliper - 'cos it's not shown on the fiche!!(true).
I've got the new nipple, but still need the plug 'cos the sheared nipple can't be budged - has any other GSer had this problem??, surely you don't need to get a new caliper just to get a new plug that screws in anyway?. I can bleed the brake without the nipple but would prefer to get things back to normal.
Anybody got any info??

Cheers..............................Grizzly

 

[MJS]

I had this happen recently, what I did was this...

Put the hex head plug (with broken nipple) into a vice, find a torx bit which is slightly larger than the nipple and tap it into what's left of the nipple (that's if you can - I was lucky with the way it broke), then unscrew the nipple from the plug.

Good luck

 

[Chris G]

I had this a few years ago,

your dealer must be pants tho' cos I went to blue bell in crewe [not the sharpest of outfits by any imagination] and even they got the parts right


34 21 2 314 017 - nipple vent screw -around £3.70


only problem is that the rear brake pipework [ the horizontal rigid stuff] can be a bugger to bleed

 

[pragmatix]

I
34 21 2 314 017 - nipple vent screw -around £3.70

Unfortunately that part no, No 10 in the picture is different to what is needed.

The bit thats needed and not shown on a parts list is the hex nut below the bleed nipple.

Now that might not help Grizzly but it might clarify the situation

Pete A

 

[Chris G]

Unfortunately that part no, No 10 in the picture is different to what is needed.

The bit thats needed and not shown on a parts list is the hex nut below the bleed nipple.

Now that might not help Grizzly but it might clarify the situation

Pete A

er, Pragers me old chum,

the part number is from the invoice for the bit itself, and was a hex head "bolt" with an O ring to seal it to the caliper, and a shiney new nipple screwed into the bolt

Honest

 

[Grizzly]

Your Right Pete

Cheers Pete,
The nipple that Chris mentions is not a problem - I've already got a new one. The problem is the artistic licence B_W have used when drawing up the parts fiche - it's not as if the hex plug is Loctited in or anything - it comes out easily and is sealed with a recessed o-ring - so it's obviously meant to be removable/replacable? - it's not the dealers fault - if they can't get a part number off the fiche their stumped.

Cheers........Grizzly

 

[pragmatix]

George, the bit you want , I think is part no 34 32 7 673 647 bit No 7 in the pic, "Screw plug with ventilation"

Hope this helps Pete A

 

[Grizzly]

Thanks Chris and Pete!!

Thanks Chris that sounds like the bits I need, if not then surely Pete's number will do it? I'll get back in touch with dealer to sort something out - thanks for you help guys.

Cheers......Grizzly

 

[rob18362]

Get Stainless ones from Motobins

Hi Grizzly,
Just been through the same problem and opted for replacing with Stainless Steel.
Got mine from Motobins:
Caliper Nipple Part No 80048S
Nipple Holder Part No 80049S
Good long term fix.
Cheers, Rob.

 

[Grizzly]

That Sounds Better??

Thanks Rob,
Thats what I'll order - the part number supplied by Chris G is the same part I already ordered - and got - it's only the nipple, the technician at the local dealer assures me that the hex plug is not available - crazy, he agrees. The part no Pragmatix suggested is for the 1200 and is in fact a banjo bolt with a nipple - no good. The motobins stainless parts seem to be the answer - thanks.

Cheers..........Grizzly

 

[Les Wassall]

And while you are at it, don't bother with a standard nipple, put SpeedBleeders in, recomended.

http://www.speedbleeder.com/

 

[nickg]

Bleed nipple and nut for rear caliper

I've just ordered one from www.motorworks.co.uk and guess what . . . they get this problem all the time.

They do the nut and nipple in stainless steel for about £15 and they are in stock

 

[Steptoe]

Motobins also do them -

This is what it looks like when it's fitted, i carry them in stock, almost like a service item





My bikes rear bleed nipple

 

[Eugene]

rear bleed nipple

Motobins also do them -

This is what it looks like when it's fitted, i carry them in stock, almost like a service item





My bikes rear bleed nipple

Mine sheared off when I service the rear caliper yesterday!

Do you have any in stock?

Should I drill out the sheared stubb or replace both?

Eugene

Eugene

 

[GlynnJ]

Motorworks (as someone else said. V good service.

http://www.bmwandguzzispares.co.uk/...ode=80&partcode=HA&source_code=BA_15_80_HA_30

GJ

 

[Eugene]

Re: Caliper bleed nipple etc

Yeah, MW looks the way to go, Steptoe probably in Morrocco anyway.

Thanks

Eugene