Jump to content

brake servo or vac pump

Recommended Posts

Lost the servo assistance on my 90.  Had a look at the vac pump and there was nothing going on so swapped it for a new one.  

The old vac pump appears to be broken as the piston is easy to push in and out across the range.  I guess either the seals or valves bust perhaps.

Took it for a quick spin down the lane with the new pump fitted and I have some servo assistance but not enough in my opinion.  Standing on the brakes it will only just lock up on a damp road (insa special tracks so not the grippiest tires on wet tarmac).

I am wondering if the servo is knackered also... but if I test it it seems fine as I can feel the pedal sink an inch or so when I start the engine up.

What do people think, is the new vac pump not 100% or is the servo on the way out.



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy