View Single Post
Superman Superman is offline
Senior Member
 
Superman's Avatar
 
Join Date: Mar 2000
Location: Lacey, WA. USA
Posts: 25,312
If a brake pedal works fine when you stab it, but will go to the floor if you press gently, then you have a master cylinder problem. The seals are letting fluid past them, when you press gently. They should seal instead. What happens when you stab the brakes is that you create enough pressure to force the seal against the piston, and if the force is maintained the seal is holding that pressure.

Or maybe those are not your symptoms?
__________________
Man of Carbon Fiber (stronger than steel)

Mocha 1978 911SC. "Coco"
Old 04-17-2022, 07:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)