[Roger Gordon]

Hello all, have had all brake callipers overhauled and am now bleeding brakes on my 365 GT4bb, all going well except the LHR calliper will not bleed at all and appears to have no fluid getting to any of the 3 bleed nipples. I have looked at the workshop manual and am surprised that with the dual circuit sustem any failure of the pressure variance indicating valve or of the two pressure regulating valves in the two rear circuits could cause this problem. The RHR calliper bled up no problem. Please let me have your wisdom and advice. Thanks in advance Roger Townshend NZ 👍

 

[SBDaytona]

Hi Roger, the flexible rubber hoses - from chassis to brake calliper can close up over time. I have some some to be completely blocked. Disconnect it from the calliper end and see if you can get fluid to flow.
All the best.

 

[Roger Gordon]

You were so right SBDaytona, both rubber hoses blocked solid .... They were the 44 year old ATE originals though! .... A full new set are on order and I will be fitting them soon, thank you for your input 👍

 

[SBDaytona]

Happy to help Roger - pleased it worked out for you.