Myles Posted November 6, 2005 Share Posted November 6, 2005 Hmm - that's odd. I'm stripping the front of the car - I undid the front brake hoses at the clappers and then pumped the brake pedal to help drain the front circuit. FIne-fine. There seemed to be almost no resistance from the rear circuit though - I could quite-happily push the pedal to the floor repeatedly... I would have thought that the pedal would get very spongey (only half of the normal resistance)... Erm, hmm.... MC is the AP 'race' jobbie by the way. Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Mick Day Posted November 6, 2005 Share Posted November 6, 2005 Just done exactly as you have & same result. if you think about it most modern cars have split diagonal circuits whereas the 7 has front/rear split. On this evidence I don't think the rears would work in an emergency after a catastrophic leak from the front. Link to comment Share on other sites More sharing options...
Myles Posted November 6, 2005 Author Share Posted November 6, 2005 That was the conclusion I came to. Scary, but incomprehensible. Howstuffworks has a good article on master-cylinders here There is even an animated diagram that simulates a brake leak... ...I'm guessing that the fail-safe isn't actually coming into play - i.e. we would need more pedal movement to get the rear piston to move in the event of a front-circuit failure...? Project Scope-Creep is live... Alcester Racing 7's Equipe - 🙆🏻™ Alcester-Racing-Sevens.com Link to comment Share on other sites More sharing options...
Mick Day Posted November 6, 2005 Share Posted November 6, 2005 Myles In a brown trouser moment that pedal would really move. Mick Link to comment Share on other sites More sharing options...
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