Bleed nipples won't release - any tips?

[fazersharp]

[quote author=unfazed link=topic=26059.msg312125#msg312125 date=1586389234]
Heat directed to the caliper to the area just below the bleeder is probably your best option. The heat gun would need have a fine point to direct it to the right place.

:agree


Heat the caliper body below the nipple at the same time, using a ring spanner or break nipple spanner, even a socket start to slowly apply pressure and undo the nipple, you don't need too much.  It's normally does the trick, but not always, sometimes the only way is to drill the bugger out, which isn't always cost effective as a replacement caliper can be cheaper then drilling and helicoiling, certainly quicker. 


Oh if you're doing it while the caliper is still on the bike, make sure you don't heat the break line
[/quote]How about sending it to a caliper refurb company and them deal with it. Powerhouse. £57
"Your calipers will be mechanically 'good as new', giving long term peace of mind. (Price includes new pressure seals, dust seals, caliper half seals, bleed nipples, dust covers and a new set of copper banjo washers so you can refit them properly)."