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Old 26-04-21, 01:49 PM
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Location: Florida / Nova Scotia
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Quote:
Originally Posted by Classic Bristol Car Parts Company View Post
David

At Bristol cars the servos are the same but we used to modify the master cylinder and if you didn't do the modification the rear brakes would stick on
Thank you.

Do you mean the 'balancing bar' or 'compensating lever' fitted to the pedal on the 410 which used two master cylinders? Or was some other change made to a single dual master cylinder fitted on later models? If the latter, is that modified dual master cylinder available?

It seems I have two choices here: leave the rear servo at 1.9x boost and fit a 4.25x boost at the front; or, replace both servos with 4.25x boost units but put a pressure limiting valve into the line from the servo to the rear brakes. The former is obviously a lot less work.

David
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