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Re: Proportioning Valve Keeps Tripping?
I once had a pressure bleeder kit and never could make it work right. But it was great for making a mess!
How about old fashioned manual bleeding? That's where a helper does "pump, pump, pump, hold" and then you open the bleeder screw. Then you close the screw and repeat the process until there are no more bubbles. If you get very little fluid out the wheel cylinders using that method, then I give up.
I've also used a MityVac, which works fine, but as mentioned a couple times in this thread, it will suck in air past the bleeder screw nipple. Makes it look like there's air in the lines when there's not -- or probably not.
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Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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