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Old 11-07-19, 09:20 PM
RALPH M RALPH M is offline
Join Date: Jul 2019
Location: Westward Ho, Devon
Posts: 30
Default 401 mysterious brake problem

I have rebuilt many hydraulic brake systems over the years but have encountered an odd problem. Refurbed drums, slave cylinders and new linings, bleed system, adjust for good clearance on master cylinder pushrod BUT the rear brakes do not release and if either rear bleed nipple is opened a squirt of fluid shoots out. So there is residual pressure. Disconnected the handbrake pins just in case. The front brakes work fine, going on and immediately releasing.

How can this be happening? It is as though there is a one way valve just in the rear pipe. Any ideas?

Mike Ralph, Devon, UK.
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