Re: treadle vac
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Home away from home
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I talked to Ross today and am sending one treadle vac his way.
Posted on: 2015/7/31 14:43
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Re: treadle vac
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Home away from home
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WISE CHOICE!
Posted on: 2015/7/31 15:09
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Re: treadle vac
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Forum Ambassador
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Coincidence or not, the name White Post seems to come to the forefront all too often when rebuilt TreadleVac failures are discussed.
Posted on: 2015/7/31 16:41
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Re: treadle vac
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Home away from home
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No doubt and I should kick myself in the A@SS! For not sending it to Ross in the first place.
Posted on: 2015/7/31 18:32
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Re: treadle vac
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Home away from home
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Group number 1.389 brake vacuum check valve.
What did Packard change between 55 (440822) and 56 (6489024)?
Posted on: 2015/8/7 18:50
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Re: treadle vac
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Home away from home
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If you are a reader of these BTV threads this scenario seems to follow a pattern:
Brake pedal becomes hard followed by a sudden loss of braking with the pedal going to the floor. There are two sources of hydraulic problems in this unit. The compensator valve and the ram seal. A damaged compensator would cause a sudden loss were the unit to fall apart, or no brakes from the outset among other weird symptoms (low pedal, gradual lock up) if the pin is damaged. However, if the ram seal rolls on the shaft this would cause a stuck pedal followed by destruction of the seal and total loss of braking. My guess then is that not using a seal protector and lube during assembly is damaging these seals, or the use of a pitted ram is causing same. So I would buy the available new ram if there are any signs of wear. Seal protectors can be had from NAPA or a local trans shop although if I were a parts supplier I would include such in the kit to avoid product liability.
Posted on: 2015/8/8 5:38
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Re: treadle vac
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Home away from home
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Tim, thanks for the diagnosis. Once I get the new unit installed, I wonder if anyone would want to get a look at the old unit. Is this an unusual occurrence? The unit was in the car for about 20 years.
Posted on: 2015/8/8 9:50
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Re: treadle vac
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Forum Ambassador
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Kanter was wanting to examine failed units at one time to see if he could find a theme or some common item causing the issues so you might see if he is still interested.
Posted on: 2015/8/8 10:11
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Howard
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