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71 Bay with leaking Brake Pressure Regulator
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mattcfish
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Location: Bellingham, WA
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PostPosted: Sun Mar 10, 2013 11:51 am    Post subject: 71 Bay with leaking Brake Pressure Regulator Reply with quote

My Brake pressure regulator is leaking badly. Looks like the gasket between the two halves has finally had it. What to do? I searched and searched, no one carries a rebuild kit or replacement part. I could try to dismantle it and make a new gasket, but what about the internal seals etc., I'm sure they need attention after 42 years.
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71 Bay Window
75 BMW 2002
76 BMW R90S
85 Vanagon with 2.2L upgrade
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SGKent Premium Member
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PostPosted: Sun Mar 10, 2013 12:02 pm    Post subject: Reply with quote

replace it.

http://www.germansupply.com/home/customer/product.php?productid=17448&cat=&page=1
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"There are no great men, there are only great challenges that ordinary men are forced by circumstances to meet." - Adm William F. Halsey Jr

Caveat: I am not telling you what to, or what not to do. When a suggestion is offered, it is wishing you the best, and is based on my experiences as a mechanic, automotive machinist, and from racing in the era your bus came to life. My only goal is to share what has been learned on my path. Smile

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kreemoweet
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PostPosted: Sun Mar 10, 2013 12:05 pm    Post subject: Reply with quote

I think the regulator uses o-rings, not gaskets to seal. I suppose you could open it up and try to find
o-rings to match, what've you got to lose? Other than that, it would be time to hit up on the used bus
parts vendors, such as bustedbus.com in Colorado or thebusco.com in Washington.
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mattcfish
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PostPosted: Sun Mar 10, 2013 1:20 pm    Post subject: Reply with quote

SGKent wrote:
replace it.

http://www.germansupply.com/home/customer/product.php?productid=17448&cat=&page=1


Thanks for that link, not sure how you found it. The price is a bit painful, I'll take mine apart first and see what I can see. If it looks like total loss, this looks like it may be the way to go. To bad there isn't a rebuild kit.
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mattcfish
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PostPosted: Sun Mar 10, 2013 1:21 pm    Post subject: Reply with quote

kreemoweet wrote:
I think the regulator uses o-rings, not gaskets to seal. I suppose you could open it up and try to find
o-rings to match, what've you got to lose? Other than that, it would be time to hit up on the used bus
parts vendors, such as bustedbus.com in Colorado or thebusco.com in Washington.


Hard to tell from the Haynes diagram how it is sealed. I'll take it apart and look.
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Shaun Murray
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PostPosted: Sun Mar 10, 2013 5:59 pm    Post subject: Reply with quote

When I bought my '72 it had a lot of missing parts the PO had robbed to put on another of his projects. This valve was one of those parts. I couldn't find one either at the time and I didn't even have a core anyway. Eager to get it on the road, I went to the local parts store and picked up a couple of threaded brake unions and plumbed it direct without the valve. I anticipated having braking problems because of this but figured it would work good enough to get other things dialed in then I would address this concern when I could locate the parts. That was about 6 years and 40K miles ago and it has always performed flawlessly witout it. I have driven it on dry roads, wet roads, and icey roads. I have driven it empty, and loaded extremely heavy and it always stops perfectly without ever having a lockup or lack of stopping force. I have had 2 other late bays('77 and a '79) in this time that both had the valve in place and I see no difference in braking performance. I'm not saying this is the best option, but definately better than a brake fluid leak.
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kreemoweet
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PostPosted: Sun Mar 10, 2013 7:53 pm    Post subject: Reply with quote

Well, see, you must not be driving that bus like an ordinary American, i.e. too fast and too close. Thus, you have very little reason to
slam on the brakes, lock up the rears, and go into spin. The regulator's sole purpose was to take away a possible excuse for nitwit drivers
to file a lawsuit against VW. Remember, these busses were made in the Ralph Nader era, and that guy had lots of people convinced that VW was somehow responsible for the crashes that idiot VW drivers got themselves into. In the last 15 years, I think I've had to apply the brakes really hard
maybe 4 or 5 times, briefly.
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[email protected]
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PostPosted: Sun Mar 10, 2013 8:02 pm    Post subject: Reply with quote

mattcfish wrote:
The price is a bit painful.


you think that is painful, wait till the steering shaft ventilates you when you run off the road.

take it apart to look, but i wouldn't reuse it. perhaps a1 cardone could rebuild it for you.
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my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese.......
[email protected] wrote:
most VW enthusiasts are stuck in 80's price land.

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Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public.

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Also the fact that people are agreeing with Skills, it's a turn of events for samba history
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SGKent Premium Member
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PostPosted: Sun Mar 10, 2013 8:37 pm    Post subject: Reply with quote

you can't buy the seal between the two halves.

Maybe this will make it seen less painful (plus shipping which is outrageous from these folks)

http://www.thesamba.com/vw/classifieds/detail.php?id=1098738
_________________
"There are no great men, there are only great challenges that ordinary men are forced by circumstances to meet." - Adm William F. Halsey Jr

Caveat: I am not telling you what to, or what not to do. When a suggestion is offered, it is wishing you the best, and is based on my experiences as a mechanic, automotive machinist, and from racing in the era your bus came to life. My only goal is to share what has been learned on my path. Smile

1971 (sold)
1977
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VDubTech
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PostPosted: Sun Mar 10, 2013 8:50 pm    Post subject: Reply with quote

If you're interested in a good used one I have a few available.
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borninabus wrote:
a measurement of your rod would be extremely useful.

notchboy wrote:
my dad wasnt a belittling cock when he tought me how to wrench on cars.

EverettB wrote:
One photo = good for reference.
10 photos = douchebaggery
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mattcfish
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PostPosted: Sun Mar 10, 2013 10:17 pm    Post subject: Reply with quote

If used or reconditioned is my best bet, what is the latest year I can get one from? Are there later/better versions that will work on a 71, how about a Vangon version? How about another make?
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