1934 to 1936 Auburn Dual Master Cylinder

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12 May 2017 10:44 #32925 by Thomas Wilcock
Thomas Wilcock replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
I realize that a dual master cylinder is a modern feature. I plan on using disc brakes on the front which is also a modern feature. I don't think a disc/drum combination is good with a single master cylinder. I plan to drive my car in modern traffic so I feel modern features should add to the safety of me and my car. I do not plan to ever have my car judged but will preserve as many original features as possible while allowing me to enjoy driving it in today's environment. Tom

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12 May 2017 12:30 #32927 by Tom_Parkinson
Tom_Parkinson replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
Hi,

If you are going to go to a combination for disc and drum brakes, you should install an inline proportioning valve. The pressure requirements for discs and for drums are different. Proportioning valves are available at Jegs and Summit Racing. Jegs offers them at:

www.jegs.com/pt/Brake+Proportioning+Valve/4294959029

--Tom

With brakes, two cylinders are better than one.

Editor-in-Chief, The Hardtop News Magazine, the Journal of the Michiana Dunes Region, Lambda Car Club International

See pix of 1509A here: http://mbcurl.me/YCSE

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13 May 2017 12:05 #32940 by Thomas Wilcock
Thomas Wilcock replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
Thank you for your response. I do have a proportioning valve. I also have a residual check valve. Because the master cylinder is at the same level or below the wheel cylinders this prevents the wheel cylinders from leaking back to the master cylinder. Tom

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13 May 2017 17:19 #32945 by johnmereness
johnmereness replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
I have seen plenty of people try to re-engineer and find car stops worse - there is some engineering as to bore diameters and ...and discussion regarding proportioning c=vales is a good one. You can get a dual cylinder to all work incredible, but it does take some thought.

JMM

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13 May 2017 22:22 #32946 by mikespeed35
mikespeed35 replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
I have found that the people who have done the least "improvements" on their cars have the least trouble on tours! As Henry Portz once told me, most problems with old cars are caused by the owners.
CORDiallyMike

Mike Huffman

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14 May 2017 15:06 #32947 by Thomas Wilcock
Thomas Wilcock replied the topic: 1934 to 1936 Auburn Dual Master Cylinder
I agree that what the original engineers designed is probably best. Because new original parts are are no longer available to replace worn out or broken originals the only options available are using worn original parts (that were removed for a reason) or modern parts that can be adapted to match or better the performance of the originals. Tom

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