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Old 03-31-2013, 05:36 PM   #1
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how to tell if bov is leaking

I have a video of giving it throttle at idle. but what I hear mainly is when driving, its hard for me to get the sound on my camera while driving but ill post a pic of a video that is almost exactly what I am talking about...heres my video
YouTube Video
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heres the video that I am talking about that sounds like a constant whistle while driving

YouTube Video
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Old 03-31-2013, 05:47 PM   #2
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boost leak test and then spray soapy water around the bov. If its a synapse , I can tell you right now its already leaking.
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Old 03-31-2013, 05:49 PM   #3
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Quote:
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boost leak test and then spray soapy water around the bov. If its a synapse , I can tell you right now its already leaking.
Exactly what I texted you!
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Old 03-31-2013, 05:53 PM   #4
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its a greddy type s bov, I spraye dbrake cleaner into the opening to see if the rpm changed, hard to tell if it did while running
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Old 03-31-2013, 05:59 PM   #5
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I wouldn't use break cleaner, might be to harsh for the gaskets and seals around the bov. A boost leak test will tell if its leaking or not, honestly if you've never done one you should be doing it twice a year if its a DD or once a year if its not. I generally go 2-5psi over what my max psi. So if I was to run 32psi I would test to 35-37ish psi.
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Old 03-31-2013, 06:03 PM   #6
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sprayed soapy water inside it and it seemed to gather a lot inside of the back of the valv and blow it out under full throttle and almost seemed to stall the engine when I was spraying into the valve
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Old 03-31-2013, 06:04 PM   #7
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I have no way of doing a boost leak test
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Old 03-31-2013, 07:24 PM   #8
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I have no way of doing a boost leak test
soapy spray goes on outside while doing a boost leak test. If you don't have a way to do it , time to make a adapter to do it. What the diameter of intake for your turbo?
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Old 03-31-2013, 07:33 PM   #9
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3 inch
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Old 03-31-2013, 07:33 PM   #10
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just seen pics of properly working greddy bov, and you can tell mine is stuck open compared to ones that are working properly
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