Re: New request for non-operating Bendix Treadle Vac

Posted by jfrom@kanter On 2016/10/17 15:18:09

The unit has been disassembled the cause of the fluid leaking into the vacuum section creating a rusty sludge has caused the power piston to stick in the bore. Once the vacuum can was removed you can see that the brake fluid was leaking past the seal. The steel piston was removed and inspected and sure enough rust pits were found allowing fluid to leak past the seal. But on another note the bypass port that feeds fluid that gets past the cup and seals was was plugged with silicone. This port was put into place so brake fluid would feed back into the reservoir instead of into the booster.

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