Re: Bendix Treadle Vac, Myths, Fiction and Facts

Posted by fredkanter On 2017/2/22 11:42:28

I'm sure the compensator valve design was not "concocted" by Bendix engineers, as a graduate engineer with 2 degrees we were never taught to concoct anything nor did I encounter this in my employment. To be sure Bendix, one of the outstanding engineering firms responsible for much of the early aerospace work was well experienced in safety. ( Factoid, our 734 Speedster roadster was owned by the president of Bendix from 1947-1952). No engineer or engineering/manufacturing firm guesses at the most important safety system in an automobile.

The compensating valve gets 100% of the braking hydraulic pressure applied to it which, by design, tightly closes the valve. The face of it is rubber which will allow for minor surface irregularities or particulate matter. The "crud" which forms over many years from fluid which is not changed will be squeezed and will not cause a loss of seal.

Our investigation has shown a reason for failure, the compensator theory is just that, a theory with no facts to support it. If that were the problem how come failures were not rampant in the 50's??

Just the facts, ma'am...please