Register now to get rid of these ads!

Technical Brake booster

Discussion in 'Traditional Hot Rods' started by Ed Carwile, Oct 11, 2024.

  1. Ed Carwile
    Joined: Oct 10, 2024
    Posts: 1

    Ed Carwile

    Looks like the 90 degree elbow where vacuum hose hooks to my underfloor power brakes has a hole in it. It’s an aftermarket assembly in my 32 Ford roadster. Would that elbow be a very specific piece or an item that could be over many vehicles. In other words can I get at NAPA? How do they generally come off? Thanks for input.
     
  2. Mike VV
    Joined: Sep 28, 2010
    Posts: 3,181

    Mike VV
    Member
    from SoCal

    If you choose the proper sized master cylinder piston correctly for your system, you...don't...need a booster !

    Been there, on more than one car.

    Mike
     
    mkubacak likes this.
  3. skooch
    Joined: Feb 7, 2007
    Posts: 488

    skooch
    Member

    It should be pretty universal.
     
  4. Is this a plastic elbow that just pushes into a rubber grommet on the booster? If so, if you know the size of the grommet and the hose that connects to it, it should be fairly easy to find a replacement at a NAPA or similar store. You might also want to make sure that there's some sort of a vacuum check valve installed somewhere in the hose connecting the booster to your vacuum source.
     
  5. The elbow is generally the check valve in the system
     
    dirt t, Oneball and BJR like this.
  6. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 4,679

    ekimneirbo

    Post a picture........
     
  7. Yeah, but with a third party aftermarket brake system it wouldn't hurt to "check". (See what I did there?) :rolleyes:
     
    Just Gary likes this.
  8. Oh I agree fully!
     
  9. I ran into that same problem... the grommet split and started leaking inconsistently. And it was an aftermarket booster installed by the PO, so no idea what 'brand' it was. Turned out it was a smaller odd size, couldn't find any duplicate that would fit. The check valve was at the booster, a 90 degree elbow. I finally found one at the local NAPA store in a box of miscellaneous grommets they had, the only difference was its 90 degrees, not straight like what was there. But it fit the hole in the booster and the check valve fit into the elbow, with a bit of hose re-routing it worked. They were unable to determine just what car it was for, but opined that it was a mid-'90s Chevy part for the PVC valve. You can do an internet search and get lots of results, but you can't find any dimensions for most of them, most were too big. Best bet is taking the grommet and elbow with you to your local store and see what you can match up.
     
    Last edited: Oct 11, 2024
  10. Mr48chev
    Joined: Dec 28, 2007
    Posts: 34,799

    Mr48chev
    ALLIANCE MEMBER

    ^^^ THIS is the correct answer and the only one you need to pay attention to.
    If it looks like this rather than just being an elbow it is a check valve.
    You just need to take the old one for show and tell and should be able to match it by size.
    Screenshot (1250).png
     
    ClayMart and BJR like this.
  11. '29 Gizmo
    Joined: Nov 6, 2022
    Posts: 964

    '29 Gizmo
    Member
    from UK

    Google brake booster elbow. There are a lots of options. The fact that there are so many for sale indicates its a common service item.
     
  12. You would think so but that wasn't the case for mine. The inlet into the booster was much smaller than 'normal' and finding the grommet was a chore...
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.