• 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

BJ8 Servo/ brake booster test

Jeepster

Jedi Trainee
Country flag
Offline
I’m not convinced that my servo ( I think you guys call it a brake booster?) is working.

Any ideas how I may be able to test the operation?

It was professionally restored about two years back, so I would hope it’s in reasonable order.

I believe one way of testing is to start the engine with your foot on the brake pedal, and it should move slightly. I’ve tried this but can’t feel much happening.

Is there anything else I can try to establish if the unit is functioning?

thanks
 
Disconnect the vacuum hose from the servo. Put a plug in it so you don't have a vacuum leak. Take it for a spin and see how well the brakes work. FWIW, if you have a replacement version, it's operation is less noticeable than the original.
 
Back
Top