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Hints /tips for seized bleed nips

  • Thread starter Thread starter bikerzx7r1981
  • Start date Start date
B

bikerzx7r1981

Guest
Anyone got any tips on getting bleed nipples out the front calipers.

I'm normally jynxd when it comes to these and i tend to shear them off... I am soaking them in wd40 for the last few days but still no movement at all.

Anyone got any hints tips
 
First off, WD40 is not the best penetrating oil. Get something better.

I like to always use a six-point socket to get the best grip.

If you DO shear it off, its pretty easy to drill out because it already has a pilot hole.
 
I would use Kroil or PB Blaster, rather than a Water Displacement fluid.
If they do shear off, I would use a left-handed bit to remove it.
 
Soak it in PB or similar for 24 hrs, respraying periodically. Get a wrench on it that gives you the tightest fit. Might have to be an SAE size so there is zero slack on it. With a SMALL hammer, or something pretty light like a 3/8 ratchet, 3/4" box end wrench, etc., tap on it gently and sharply. The idea is to crack it loose not manhandle it into submission. Good luck!
 
The best stuff you can get over here is 3 in 1 Professional Penetrating Oil - it works. WD40 doesn't. Soak the threads in a squirt or 2 every day for a few days and then have a go at undoing the nipples. Don't be brutal - if it won't shift have another go a couple of days later - the buggers snap like carrots. Try soaking from the inside as well as the outside (caliper dismantled).

If you still have a no-go try heating till red hot with a gas torch. If still a no go you can either break off and drill out (don't use an easy out - it will snap and you'll be worse off). Or you could just leave alone and buy a couple of banjos with the bleed nipple incorporated.
 
Do as Cableguy suggested.
Make certain that you use a 6-point socket to distribute the load on the fitting.
When it looks bleak, use heat to get it hot and then allow it to cool a little before trying again.
Brake fluid is flammable. Be careful.

Daniel
 
It should be an 8 mm. Heat is always a stuck bolts enemy. Heat it, oil it, break them loose.
 
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