Weeping calliper bleed nipples?

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damci · #1 Post by **damci** » Mon Mar 21, 2011 11:53 am

Hi all

I took my callipers off over the winter break for a rebuild (new seals, pads, fluid etc) and fitted them back on the bike last Friday. This morning I noticed a small amount of brake fluid was weeping from the bleed nipple on each of the callipers.

Now I’m pretty sure I tightened the nipples up tightly, anyone got any idea why this would happen? Do I need new nipples

Samray · #2 Post by **Samray** » Mon Mar 21, 2011 12:09 pm

Kryten: Now then, my nipples don't work.
Lister: Er, in what way `don't work'?
Kryten: Well, uh, when I was a mechanoid, the right nipple-nut was used to, uh, regulate body temperature, while the left nipple-nut was used mainly to, uh, pick up shortwave radio transmissions. Now, what I'm saying is, no matter how hard I twiddle it, I can't seem to pick up Jazz FM.
Lister: Human nipples don't do that, Kryte.

Nooj · #3 Post by **Nooj** » Mon Mar 21, 2011 12:12 pm

Could be leaking due to a bit of corrosion, or if a little bit of dirt has got into the threads in the calipers.

A pair of stainless ones are only about £11, remind me what size the threads are and I'll let you know exactly how much the Pro-Bolt ones are (inc. 5% discount). Worth doing as they're a right PITA when they get corroded in and sheer off rather than undo!

damci · #4 Post by **damci** » Mon Mar 21, 2011 1:13 pm

Nooj wrote:Could be leaking due to a bit of corrosion, or if a little bit of dirt has got into the threads in the calipers.

A pair of stainless ones are only about £11, remind me what size the threads are and I'll let you know exactly how much the Pro-Bolt ones are (inc. 5% discount). Worth doing as they're a right PITA when they get corroded in and sheer off rather than undo!

I did notice a bit of corrosion on the bolt head so you might be right.

I'll take a pair of the stainless bolts off you if the Pro-bolt ones are too pricey, not sure on the thread size as I'm at work and can't check.

Nooj · #5 Post by **Nooj** » Mon Mar 21, 2011 3:56 pm

£10.11 inc. postage - 5% discount for a pair of Stainless ones (they will be Pro_Bolt, I'm a retailer for them).

Or if you're feeling flash... £19.48 for a pair of natural colour titanium ones

GregD-UK · #6 Post by **GregD-UK** » Mon Mar 21, 2011 6:24 pm

8.0mm x 1.25mm might be interested in some titanium gold, depending on price

I have RSV 2003 calipers by the way.... Cheers Nooj

damci · #7 Post by **damci** » Mon Mar 21, 2011 8:20 pm

I'll take some stainless ones please, spent enough on the bike this month! How do I pay? Paypal?

D-Rider · #8 Post by **D-Rider** » Mon Mar 21, 2011 8:58 pm

Hmm need to check whether I've got any for the new callipers - I'll get back to you.

.... now, what exactly would be the advantages of the Ti ones

Nooj · #9 Post by **Nooj** » Mon Mar 21, 2011 9:54 pm

£20.45 for gold (or blue or purple) Titanium ones.

Titanium advantage; lighter, corrosion resistant, comes in plain or three colours if you want coloured ones. 'Bout it really.

#10 Post by **Kwackerz** » Mon Mar 21, 2011 10:05 pm

..plus you can dymotape a message for the bottom of your numberplate..

'MY NUTS ARE TITANIUM'

#11 Post by **Kwackerz** » Mon Mar 21, 2011 10:08 pm

Oh and if you replace the hero blobs on your footpegs with Ti bolts, they spark nicely when you grind them on the deck on trackdays...

(missing a trick there nooj, with the power rangers? niche in the market...)

D-Rider · #12 Post by **D-Rider** » Mon Mar 21, 2011 11:03 pm

Nooj wrote:£20.45 for gold (or blue or purple) Titanium ones.

Titanium advantage; lighter, corrosion resistant, comes in plain or three colours if you want coloured ones. 'Bout it really.

Are you seriously suggesting that the weight saving on a bleed nipple really has any impact .....

.... and I'd hope the stainless ones were in a grade that provided good corrosion resistance anyway .... being as that would be the main reason for having a stainless one .....

.... so I guess it's all down to colour ..... that will be covered by the rubber boot that goes over them .....

Probably in the market for a pair of stainless ones - do you have a nice pair of stainless banjo bolts too? (4-pad callipers - though I guess the banjo bolts will be the same as for the 2-pad callipers)

Nooj · #13 Post by **Nooj** » Tue Mar 22, 2011 7:17 pm

Stainless is A4, so will be plenty good enough. I do like the 'my nipples are titanium' tag line for a number plate

Stainless banjos aren't a problem. Single? Double? What size and how many? Want one for the clutch slave with a nipple built in?

MartDude · #14 Post by **MartDude** » Tue Mar 22, 2011 7:47 pm

Nooj wrote: I do like the 'my nipples are titanium' tag line for a number plate

Could be a follow-up to Tits of Death's 'Iron Nipples'
http://www.myspace.com/9948643/music/so ... S-26778068
http://www.myspace.com/titsofdeath

D-Rider · #15 Post by **D-Rider** » Tue Mar 22, 2011 8:16 pm

Nooj wrote:Stainless is A4, so will be plenty good enough. I do like the 'my nipples are titanium' tag line for a number plate

Stainless banjos aren't a problem. Single? Double? What size and how many? Want one for the clutch slave with a nipple built in?

LOL - just want the banjo bolts for the front callipers (already have one with a bleed nipple for the clutch slave and already have a double for the brake master).

So - how much for a pair of banjo bolts and a pair of bleed nipples in stainless .... (hopefully delivered to the midlands by the weekend

)

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