Re: New request for non-operating Bendix Treadle Vac

Posted by fredkanter On 2016/9/7 21:34:19

On the subject of a "flurry" of reports of failures.

We have been asking for members to submit failed units for 2-3 years, since we saw those reports. Since then we have had exactly one (1) unit submitted for a FREE rebuild. I therefore question the veracity of failure reports.

Some people "guessed" that particulate matter under the compensator port valve, or the weakening over time of its spring or the rusting of the spring (it's stainless steel!!) causes failure. Rebuilding hundreds of units tells us that these "guesses" are as about as accurate as guessing the serial number of a Packard your grandfather rode in in 1928.

AS I'VE SAID IN ANOTHER FORUM, LACK OF USE WHICH LEADS TO MOISTURE ABSORBPTION OF THE FLUID WHICH LEADS TO DETERIORATION OF THE FLUID AND CORROSION OF THE MAIN HYDRAULIC PISTON IS WHAT LEADS TO FAILURE.

ALSO SOME REBUILDERS WHO THINK THEY KNOW MORE ABOUT DESIGN THAN THE BENDIX ENGINEERS PLUG A CRITICAL RETURN PASSAGE WHICH IS THERE TO PREVENT FAILURE.