marmiticus Posted September 29, 2018 Share Posted September 29, 2018 Very odd problem. For weeks I have been chasing a problem around to fix my sticking and binding brakes. Everything is new. And I’ve swapped out master cylinders and flex pipes etc again with more new kit. The pedal has plenty of free play. The wheel cylinders return no problem, and springs are all correctly orientated, etc...But just noticed that once the pressure builds up, if I yank up on the brake pedal with my foot or hand the pressure releases!!!! You can hear it release. What the hell could be the cause of this? What’s the fix? series 3 lightweight dual circuit brakes 1975 Quote Link to comment Share on other sites More sharing options...
rtbarton Posted September 30, 2018 Share Posted September 30, 2018 Have you got a servo? I had this problem on a Range Rover. It was the seal round the input shaft on the servo. A service kit fixed it. Quote Link to comment Share on other sites More sharing options...
Snagger Posted October 1, 2018 Share Posted October 1, 2018 It sounds like the return spring on the pedal isn't doing its job properly - if it was, pulling up on the pedal wouldn't give any movement or effect. Quote Link to comment Share on other sites More sharing options...
rtbarton Posted October 1, 2018 Share Posted October 1, 2018 Is there some play between the pedal and the push rod when the pedal is at the top position? This is necessary to allow the cylinder to recuperate. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.