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Suspension Questions Chassis, Brakes, Springs, Shocks, Swaybars, Tire, Rims Etc Suspension Questions Chassis, Brakes, Springs, Shocks, Swaybars, Tire, Rims Etc

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Old 03-12-2020, 12:09 PM   #21
BamaNomad

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I took my tv apart and found that there is brake fluid inside the booster vacuum chamber area. So itís time to get out rebuilt again. Any recommendations on a company to use to rebuild it.
That means that your master cylinder is leaking from the rear seal area back into the booster. The MC needs rebuilding, but does the booster also??

If you had leaking wheel cylinders, then your shoes may need replacing as well if the brakes are wet with brake fluid (or have been in the past). That was likely causing your brake grabbing (and lockup) issue.

PS. Fluid seals need 'regular use' to keep them functioning properly; cars that sit 99% of the time will regularly have these issues. Our old cars also need regular inspection and maintenance to identify and quickly correct such issues. Your car apparently has several issues and most probably due to sitting and not being driven... (Think of it as 'exercise', just as our bodies need exercise, so do our automobiles!)..
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Old 03-13-2020, 03:53 PM   #22
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Has anyone tried this replacement booster for the treadle vac from classic industry
https://www.classicindustries.com/product/pb10719.html
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Old 03-13-2020, 03:56 PM   #23
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With my findings I ended up replacing all the brake shoes and a full fluid flush. Now I just need to decide to either rebuild the original or go with the booster from classic industries
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Old 03-13-2020, 08:24 PM   #24
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With my findings I ended up replacing all the brake shoes and a full fluid flush. Now I just need to decide to either rebuild the original or go with the booster from classic industries
Your MC is leaking, and needs to be rebuilt with new seals, a number of kits out there to rebuild both it and the booster, not a difficult job, did my mc and booster a few years ago, no real problems once everything got straightened out, remember to bleed and adjust with no vacuum on the system. All the booster does is help pedal pressure, you won't need as much foot pressure to apply the brakes, the other issue for me is there is no pedal height adjustment on an original tredlevac, just something I had to get used to.
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Old 03-14-2020, 12:15 AM   #25
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Unfortunately, most 60+ year old TVacs require more than just new seals.

The aluminum MC can easily corrode with DOT 3 brake fluid in the system. Sleeving the MC is the best/safest cure, but it's kind of a tricky step-sleeve. There is also a reproduction aluminum MC if you need it.

Try Jeff at Karp's Power Brake in Upland CA 909-985-0800, tell him Steve at Authentic Automotive sent you.
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