MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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roverman
Art Gertz
Winchester, CA.
(2850 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Brake Proportioning Valve
Posted by: roverman
Date: January 17, 2013 08:10PM

"Not very tunable", seems like (2) proportioning valves, in sync, would do it. roverman.


classic conversions
bill guzman

(288 posts)

Registered:
01/09/2008 01:58AM

Main British Car:


Re: Brake Proportioning Valve
Posted by: classic conversions
Date: January 17, 2013 09:56PM

Please elaborate.


roverman
Art Gertz
Winchester, CA.
(2850 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Brake Proportioning Valve
Posted by: roverman
Date: January 18, 2013 01:40PM

Just theory, at this point, 2 proportioning valves, side by side with minature gilmer pullies, for knobs. Turn the the belt clockwise and both knobs rotate in-sync. Is diagonal better ? Onward, roverman.



Edited 1 time(s). Last edit at 01/18/2013 01:40PM by roverman.


classic conversions
bill guzman

(288 posts)

Registered:
01/09/2008 01:58AM

Main British Car:


Re: Brake Proportioning Valve
Posted by: classic conversions
Date: January 21, 2013 07:15PM

Do both valves flow the same?? forget it!!


ToyBug
Dan Wilson
Colorado Springs
(13 posts)

Registered:
06/01/2010 10:09PM

Main British Car:
1959 Bugeye Sprite, 50's MG Special Toyota 2-TC 1600cc, MGB 1800

Re: Brake Proportioning Valve
Posted by: ToyBug
Date: May 07, 2017 03:47AM

I know this is an ancient thread, but I'm hoping that someone here has alreday figured out this:
The Wilwood proportioning valves use a 1/8-27 NPT input port. They supply an adapter from the NPT thread to a 3/16 inverted flare line.
MGBs and other British cars usually have 3/16 bubble flare lines, with a 3/8-24 thread. Not metric as far as I know.
I am using a Wilwood valve in my "50s MG Special" (see Project Journals), and cannot for the life of me find an adapter that would be described as:

3/16 (Girling) bubble flare 3/8-24 female to 1/8-27 NPT male.

I sent an email to Wilwood yesterday after hours, so have not heard back from them yet. Their online catalog does not show such a fitting.
I have checked all major local autoparts stores, industrial plumbing shops like the Parker Store, as well as online brake plumbing catalogs, etc.

Any suggestions appreciated.
Thanks,
Dan Wilson
Colorado Springs


wspohn
bill spohn

(25 posts)

Registered:
10/23/2007 09:14AM

Main British Car:


authors avatar
Re: Brake Proportioning Valve
Posted by: wspohn
Date: June 12, 2017 11:57AM

Suggest you take the easy way - cut off he existing bubble flair and do an inverted flair with your flaring tool and there you go.
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