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Ahem - Nipple problems
norfolkluego - 27/6/11 at 09:42 PM

If you can get over your disappointment

Can't get new bleed nipples for my Sierra caliper, local motor factors (normally very good) gave me the one's (left) in the picture, old ones shown on right.
They wont even go in the hole the old ones came out of. Does anyone know the 'official' part number so I can try ordering that.



[Edited on 28/6/11 by norfolkluego]


mcerd1 - 27/6/11 at 09:54 PM

http://www.biggred.co.uk/

give them a call and they'll sort you out

[Edited on 27/6/2011 by mcerd1]


DavidM - 27/6/11 at 10:43 PM

They should be M10 thread. The thread on the right looks strangely knarled, as if it may be the wrong thread for the caliper, but was wound in anyway.

David


Davg - 27/6/11 at 11:07 PM

quote:
Originally posted by DavidM
They should be M10 thread. The thread on the right looks strangely knarled, as if it may be the wrong thread for the caliper, but was wound in anyway.

David


Yup agree wiff above.

You could stick a tap down the thread. Loads M10 ford nipps on the Bay. I would go for the stainlees ones advertised.
cheers D


ss1turbo - 28/6/11 at 07:39 AM

I wonder if someone's squeezed a 3/8 one in there...? Get the vernier caliper on it - imperial nipples have an imperial AF size as a rule, metric a metric.


James - 28/6/11 at 12:05 PM

quote:
Originally posted by Davg


You could stick a tap down the thread.
cheers D


Be careful with getting the swarf out again if you do this.

Cheers,
James


norfolkluego - 30/6/11 at 07:19 PM

Now I've got three.
Ordered some M10s off ebay, they don't fit either
So that's M10 on left, the motor factor 'Sierra' ones in the middle and the ones off the car on the right.
Now what I'm thinking is, I don't have Sierra calipers (I didn't build the car)
Poor picture, sorry


mcerd1 - 30/6/11 at 07:24 PM

got a pic of the calipers ?

do they have any big numbers cast into them ?

[Edited on 30/6/2011 by mcerd1]


norfolkluego - 30/6/11 at 07:30 PM

Only one I've taken, not a good view


mcerd1 - 30/6/11 at 07:35 PM

they do look like sierra ones (as much as I can tell from that pic at least)


Norfolkluegojnr - 1/7/11 at 07:57 AM

A bump back up the list.

help please guys! we're supposed to be sprinting next weekend, could be difficult with one brake......

Any obvious way to determine where a caliper has come from?


wombat - 1/7/11 at 09:17 AM

Can you beg steal borrow another caliper from someone?


mcerd1 - 1/7/11 at 10:00 AM

quote:
Originally posted by Norfolkluegojnr
Any obvious way to determine where a caliper has come from?


can you see a big number cast into the back/outside of it ?


adithorp - 1/7/11 at 10:07 AM

Those are Sierra front hubs and look very much like Sierra calipers. Certainly don't look like anything earlier that wouldn't have M10 bleed nipples.
The old nipple looks like someone has cross threaded a nipple in the caliper and daMAGED THE FIRST COUPLE OF CALIPER THREADS AND THEN EITHER (oops, cap lock) got the old nipple or a new one started on the right thread . Thats then damaged both the nipple and probably the caliper threads. Result is that the new good nipple won't start as the tread profile doesn't match the damage thread. You could try re-tapping the hole to clean up the tread but be carefull as it'll strip easily afterwards, or otherwise it's a new caliper.


mcerd1 - 1/7/11 at 10:15 AM

I might still have these crusty ones somewhere (they are the larger ones for 260mm discs) but I'm guessing you need it quicker than that (they'd probably need stripped down and rebuilt...)



[Edited on 1/7/2011 by mcerd1]


Jed - 1/7/11 at 10:27 AM

I have some 240mm Sierra calipers if that is any help. I'm located near Mulbarton. They came off the TVR when I fitted 260mm discs and calipers so were working fine.

Drop me a PM if you're interested.


norfolkluego - 2/7/11 at 06:23 PM

Nipple problems are no more.
Car now happily tucked up in bed wearing the calipers I bought from Jed, cleaned up really nice by the way Jed.

Once the old ones were off the car we finally managed to get the stuck nipple out, they definitely look like the wrong ones for the caliper but as you can line things up a bit easier off the car we did manage to get the M10s I bought into the old calipers, so I've now got a spare set.

Thanks for all the help guys.


Jed - 2/7/11 at 07:05 PM

Excellent, glad they worked.

Jed