m16 caliper

[Brian (up north) Morris]

hi chaps i seem to have a very stuck blead nipple in my m16 caliper. iv wire brushed it and sprayed it with wd40 fifty times. nope its not budging. i really dont want to sheer it of as they are quite expensive. anyone got any ideas please.  thanks (rusty nipple) ;-)

[Steve Kerswell]

Got a blow lamp? 

[Brian (up north) Morris]

yes steve. i was worried it may melt the seals inside though....

[Adrian Southgate]

small hot flame, just heat the bleed nipple not the caliper body, it won't get red hot, doesn't need to. Point the flame across the nipple rather than at the caliper body.

[Brian (up north) Morris]

thanks ade wont that cause the nipple to expand in the caliper. making it harder to get off...? 

[Adrian Southgate]

I don't ever question the science Brian, Its the differential between the two materials, causes the two components to 'separate' either as they warm up or as they cool. 

Soak it in wd40, heat it up, get a six sided socket on it then gently tap the wrench until it starts to move. Its only a 11mm nut (some are 10) so don't belt it. If at first you don't succeed, heat it up again.

[Brian (up north) Morris]

:-))))

[Brian (up north) Morris]

are so you have daryl.....?

[Steve Kerswell]

:-)))

[Brian (up north) Morris]

anyone here heard of heli coils ....no good for calipers but shi* hot for snaped off bolts. 

[Paul Sheridan]

A few years ago I did an in depth article for DT mag on Helicoils and Thread Inserts........ for some reason it never got published. Cant remember why, there must have been too many other articles ;-)))))) 

[James Doulton]

Do you still have a copy? If so then send it to me.

[Brian (up north) Morris]

victory  :-))))