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Hodence
Samba Member
Joined: December 15, 2020
Posts: 87
Location: Newburyport, MA, USA
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 Posted: Sun Apr 11, 2021 10:54 am Post subject: Do I Need a Rear Brake Pressure Regulator? |
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I've just started working on my bay window's brake system and i'm already realizing that i might need to "MacGyver" it a bit. My bay window has a split window front axle swapped into it... so its drum brake on all four corners.  Because of this, i shouldn't need a rear brake pressure regulator, right?
The pressure regulator was cut out of my brake system a while ago, before I got the bus, so its no extra trouble to just straight-line it from the master cylinder to the rear T fitting. I don't know too much about VW bus brake systems, i'm only a few hours of research in. So please let me know what you think.
(unfortunately I have a pretty short timeline for my restoration, so swapping the front axle isn't really an option as of right now)
Thanks for your time, any input would be really appreciated. |
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babysnakes
Samba Member
Joined: August 19, 2008
Posts: 7107
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| Posted: Sun Apr 11, 2021 12:06 pm Post subject: Re: Do I Need a Rear Brake Pressure Regulator? |
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| You should not need the proportioning valve. Those were used on buses with front discs. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16971
Location: San Diego, California
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| Posted: Sun Apr 11, 2021 12:19 pm Post subject: Re: Do I Need a Rear Brake Pressure Regulator? |
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What bus with stock front disc brakes has a front beam that's compatible with a beam from a splitty? I was thinking maybe a 1968?
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
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VW Type 2 1971 (3 ea.) 1978, 1969
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Hodence
Samba Member
Joined: December 15, 2020
Posts: 87
Location: Newburyport, MA, USA
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| Posted: Sun Apr 11, 2021 1:12 pm Post subject: Re: Do I Need a Rear Brake Pressure Regulator? |
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Its a '74 Bay Window Westy. Not sure exactly how the previous owners made it work, but it feels pretty well put on there and steers just fine.
Thank you @babysnakes. If anyone else has input that would be great. Messing with brakes is a little nerve-racking, so even if you think it would be totally fine to remove the pressure regulator, the boost in confidence would be great. But also if you think its a bad idea, i'd love to hear why. Thanks guys! |
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babysnakes
Samba Member
Joined: August 19, 2008
Posts: 7107
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| Posted: Sun Apr 11, 2021 1:51 pm Post subject: Re: Do I Need a Rear Brake Pressure Regulator? |
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| aeromech wrote: |
| What bus with stock front disc brakes has a front beam that's compatible with a beam from a splitty? I was thinking maybe a 1968? |
I’m with you on that Gary. A late split beam will bolt up to an’68-70 beam as far as I know. I have heard of various local shops that drill and weld split beams to fit late Bays so they can slam them on the cheap. |
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aeromech
Samba Member
Joined: January 24, 2006
Posts: 16971
Location: San Diego, California
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| Posted: Sun Apr 11, 2021 8:29 pm Post subject: Re: Do I Need a Rear Brake Pressure Regulator? |
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Keyword “slam”. That’s the bigger picture I think
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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