Bleed nipple size?

[glenn]

Going to bleed brakes and rebuild caliper but the nut seems to be smaller than actual nipple on top so can not put a socket over the top to crack off. They actually look 7mm I don't have a flared spanner of that size and neither does halfords on the site.

 

[MC1]

Does the nipple have a plastic cap on it? If so it will stop the spanner going on...just in case it has one. Spanner should go over the end that’s all.

 

[glenn]

Rubber cap is off

 

[glenn]

Seems the issue was the nut on the bleed nipple sound be possibly a 8 or 9mm but mine has corroded on drivers side so the nipple head was bigger than nut. Managed to hammer a 7mm over top and crack off.