Re: Bendix Treadle Vac Diagnosis
Posted by fredkanter On 2016/8/10 13:57:13
Photos 4 & 5 Booster can
See the rust and gunk at the end of the can, there was also 3 oz of rust colored brake fluid down there... DOT 3 brake fluid does no cause rust, only water causes rust. A DOT 3 brake system which is open to the atmosphere absorbs water over time and if the car is not used the water collects and rusts the wheel cylinders and master cyl if it is iron. In the master cyl reservoir there was gunk caused by water/oxygen and brake fluid
Photos 6 & 7 Vacuum piston.
There is rust/gunk on the lower (5 o'clock to 7 o'clock) portion of the vacuum piston caused by water
Photo 8 "Tipper "valve/ seat.
The rubber sealing portion of the valve is in perfect condition as is the stainless steel seat. There was no debris under the valve and no indication that there was a leak bypassing the valve
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See the rust and gunk at the end of the can, there was also 3 oz of rust colored brake fluid down there... DOT 3 brake fluid does no cause rust, only water causes rust. A DOT 3 brake system which is open to the atmosphere absorbs water over time and if the car is not used the water collects and rusts the wheel cylinders and master cyl if it is iron. In the master cyl reservoir there was gunk caused by water/oxygen and brake fluid
Photos 6 & 7 Vacuum piston.
There is rust/gunk on the lower (5 o'clock to 7 o'clock) portion of the vacuum piston caused by water
Photo 8 "Tipper "valve/ seat.
The rubber sealing portion of the valve is in perfect condition as is the stainless steel seat. There was no debris under the valve and no indication that there was a leak bypassing the valve
Attach file:
(238.10 KB)
(215.12 KB)
(315.15 KB)
(226.46 KB)
(304.11 KB)
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