Results 1 to 4 of 4

Thread: brake vac pump

  1. 28th April 2013, 01:07 PM #1
    dero
    dero is offline Master Subscriber
    Join Date
    Jan 2010
    Location
    Perth S/W
    Posts
    398
    Total Downloaded
    0

    brake vac pump

    How much does a wabco vac pump suck ?
    I recently replaced my old vac pump ,as I was only getting about half power.
    The new one only lasted 50km then lots of ratteling & no brake power .
    Pulled it off again to find the piston moveing freely ,no resistance at all .
    Fitted onother new one ,worked fine ,full boost ,as did the first one , then a short time later ,aprox 150km ,I only have boost at road speed ,not at low speed or idle .
    Disconnected the hose at the booster unit & checked for vacuum ,at idle ,I can just feel a slight vacuum on the hose with my finger or tongue , but only slight .
    Has this pump also failed or should I be looking for another problem?
    In between the two new pumps I refitted the old one, for aprox 500km while waiting for the second new one , and it worked fine at all speeds albeit at reduced power .
    Any advice would be much appreciated .
    Reply With Quote Reply With Quote
  2. 28th April 2013, 01:23 PM #2
    dero
    dero is offline Master Subscriber
    Join Date
    Jan 2010
    Location
    Perth S/W
    Posts
    398
    Total Downloaded
    0
    The vacume increases dramaticly with revs , by feel only , no vac guage.
    Reply With Quote Reply With Quote
  3. 28th April 2013, 02:11 PM #3
    Draco Australis's Avatar
    Draco Australis
    Draco Australis is offline Fossicker Supporter
    Join Date
    Mar 2013
    Location
    Hervey Bay, Queensland
    Posts
    46
    Total Downloaded
    0
    That seams to be a big problem once the original wears out. I have heard that the Bearmach units are alot more reliable. Hope you find a good fix soon. This thread has a few different ideas. http://www.aulro.com/afvb/90-110-130...cuum-pump.html
    Reply With Quote Reply With Quote
  4. 28th April 2013, 02:54 PM #4
    87County's Avatar
    87County
    87County is offline AT REST
    Join Date
    May 2007
    Location
    in the wild New England, NSW
    Posts
    4,918
    Total Downloaded
    0
    s e a r c h is your friend ......


    300Tdi Vacuum Pump

    It does seem like the wabco ones are a problem at the moment.

    You'll note in that thread my positive experience with the karcraft product and also the recommended use of more than one gasket when installing to increase clearance on the cam.

    Hope it works out for you
    Reply With Quote Reply With Quote
« Ashcroft LT230 ATB CDL | Series 2 clcok bulb »

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!