Thanks,
Best I can tell that is the same valve I have used on three different trucks now, but never had a problem bleeding the brakes. Now I'll have to go look for this plunger thing, I'm curious. I have also never had a wire or test light on the terminal, so perhaps mine is always stuck, but the brakes work perfect?

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-