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Discussion Starter #1
My wastegates are frozen shut. I can't even move the lever with my hand. What should I do? Do these things go bad often?
 

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If it still has the actuator attached, it's not supposed to move by hand.

If it's not attached, then it's weird as hell because you've somehow welded cast iron together.
 

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Discussion Starter #3
Well, I should still be able to move it by hand, right? Its just a plunger with a spring.
 

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The only reliable way to test is with a vacuum/pressure pump and guage. The common brand is MightyVac-about a hundred bucks and is essential to test cars.
 

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Discussion Starter #5
Well, I noticed in the past that it really doesn't open up all the way, and just yesterday I think they got completely frozen shut because I'm generating a whole bunch of boost. I have a tire pump with gauge on it that I use to apply pressure. It always seems to work well. But I still think I should be able to move it by hand.
 

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You shouldn't be able to move it by hand. What does your aftermarket boost guage(if you have one, if you don't this is a real good reason to get one)tell you. If they were frozen shut, you'd boost really high and blow your engine. If you boost guage is reading pretty normal(9psi-12psi) then I'd say it's fine.
 

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Discussion Starter #8
I built an electronic boost guage. Its calibrated to be good for +-1 psi, which is probably a lot better than most analog boost gauges. After I thought they closed shut, the pressure in the plenum starts out about 20 psi and bleeds down to about 17-18. I haven't been reving my engine high in this state at all.
 
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