• 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

Brake Bleed after Servo Installation

Share this page

S

Scot

Jedi Hopeful
Country flag
Offline
I just had my Girling brake servo rebuilt by a professional rebuilder and I have now reinstalled it back in my BJ8.
My question relates to bleeding of the hydraulic system after the sevo is back in.
Is there anything special I must do to bleed the sytem after such a replacement or just bleed normally? I have talked to others about this and they have had limited success. Alot are getting air in the system after bleeding and some talk about bleeding the sevo itself although mine has no bleed nipple.
Would it help to start the car and pump brakes after the first bleed and then repeat the proceess?
Any help or experience on this appreciated. /ubbthreads/images/graemlins/confused.gif
 
Hi Scot, I have replaced the original servo on my 1966 BJ8 after it was rebuilt and simply bled the brakes in the usual manner ,no problems were encountered-FWIW---Keoke
 
When you bleed the brakes make sure you have the engine running [ vacuum on servo] otherwise you can get an air lock inside the servo master cylinder. That's right there are in essence two [2] master cylinders - 1st at the peddle and the 2nd on the servo. Without vacuum the servo master will not operate or go full stroke expelling any trapped air inside. This is from experience.

Regards, Bob
 
Thanks for the tips guys. After a normal bleed I started the car with a firm pedal and all checks out OK on a test drive.
 
Thom;
Never had that problem after servo rebuild and reinstall.Regards Keoke /ubbthreads/images/graemlins/driving.gif
 
Back
Top