Hints /tips for seized bleed nips

[bikerzx7r1981]

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

[Adler]

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.

[koolaid_kid]

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.

[cableguy]

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!

[hampshirehog]

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.

[7981GS]

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

[chuck hahn]

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

[bikerzx7r1981]

cheers all.

[chuck hahn]

So are we to take that as you got them loose??? What method worked for you???