Re: 54' pacific brakes??

Posted by fredkanter On 2016/7/22 22:53:23

My experience since 1962 with Packard and other Treadle vacs has never turned up a single instance of a non-seating valve. I believe that many can't properly pinpoint the reason for failure and thus figure it's the valve. Fluid leaking by the piston may lead to failure and when it takes the engineered path back to the reservoir "magically" the brakes work again.

Some think it is because the hair thin steel valve spring has worn out or rusted. Not possible to rust, it's stainless steel. Worn out??, never seen it in the 100's of units we've processed.



Some rebuilders block this path with silicone thus defeating an important engineered safety design.

Thje most common reason for failure is fluid leaking by the piston seals and getting sucked into the vacuum canister

Why do the units fail, for the same reason an engine fails if the oil is not changed in 20 years. The fluid gets contaminated with water or congeals into a crystal-like substnace.

Failure is mostly due to lack of maintenance. When was the last time the fluid was flushed in your Pacific.

We will extend the same offer we've been for 3 years with no takers. Send us your unit and we'll rebiuild it for free, we want to do a failure analysis on it.