Rear brake caliper advice

[cococola]

I have fitted my rear brake calipers onto my 944 and upon bleeding I find that the driver side is leaking badly from the Bleed nipple. I wonder is there a ball bearing or something underneath the nipple that acts as a valve please and if so where available?
Many thanks

 

[chrisg]

No ball bearing - tapered bleed nipple and and seat for it to seal into.

I think the s has sliding calipers at the back ? I've only experience with Brembo 4 pots.

If it's leaking I'd consider an exchange/ replacement caliper - I assume they're available ?

C

 

[cococola]

Yes sliding ones Chris, I've replaced the old Bleed nipples as part of an overhaul so new caliper it looks like then??

 

[chrisg]

Only thing you could check/ clarify is if its the correct bleed nipple ?

When you take out the bleed nipple it will be cone shaped - this cone should match the female one inside the bleed nipple ( this has a hole at the tip for allowing the fluid out) - the 'seal' is created by the pressure of the male cone into the female cone. I know it sounds daft, is it definitely the bleed nipple that leaking ?

Notwithstanding the cost of replacement/ refurb caliper - rear brake calipers are worth replacing - they get limited fluid pressure (due to bias) and rarely get hot so sticky/seizing is very common - even on 4 pot Brembo Turbo/S2 versions !

 

[cococola]

I've just checked the bleed nipple and it was the correct on aswell,I will try another bleed nipple and then looks like a new caliper.
Many thanks for all advice []