• Hi Guest!
    If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.

    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

Brakes not releasing fully

SargeVT

Member
Offline
Yah I know, its been a long time since I have posted! My brakes are not releasing fully. Since I have a '67 3000, I am wondering if either the master cylinder or the vaccuum assist has a return hole that might be plugged?
 
Most master cylinders have a "bleed port" which is uncovered when the MC piston is fully retracted. This lets the fluid in the wheel cylinders/calipers flow back into the MC when the pedal is released.

If the pedal linkage is adjusted so that the MC can not travel back to it's fully released position, the bleed port will not be uncovered. This would apply to a boosted or unboosted MC.

If it was only one or two of the wheels not releasing, there are many tales of the rubber inner liner on a hose collapsing & forming a one way valve which will not let the attached cylinder release.
D
 
Back
Top