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Boost leak test. Cant test above 5psi.
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07-02-2019, 02:24 AM | #1 |
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Boost leak test. Cant test above 5psi.
Hey guys im getting 2 leaks on the intake side of the turbo while trying to check for boost leaks, one right at the turbo inlet and another at the inlet-intake connection before that.
If i try to put more then 5 PSI it leaks and i'm wondering do i need to buy a new rubber grommet and a new inlet pipe? or is this pretty common? I read that some ppl have it seal good enough where the pipe pops off the turbo past 5psi but mine leaks like crazy. The grommet and turbo inlet look in good shape to me. If that pretty common how can i test past 5psi? Thanks |
07-02-2019, 10:28 AM | #2 |
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Where are you attaching the pressure tester? Everything going into the turbo only sees vacuum, not boost. Boost leaks happen between turbo and throttle body.
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07-02-2019, 09:15 PM | #3 | |
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Quote:
I could buy the tester that goes right on the inlet pipe from turboboostleaktesters.com but I know it's leaking right at the turbo inlet pretty bad. Last edited by erzenble; 07-02-2019 at 09:40 PM.. |
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07-02-2019, 11:17 PM | #4 |
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I was able to test to 20psi before I stopped adding more with no issues. Do you have the VRSF inlet?
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2011 E92 335i | 11.7@125 SOLD
2017 Camaro SS | 12.7@114 SOLD 2019 Audi TT RS | 10.5@130 SOLD 2020 F97 X3M | 11.0@123 2023 G80 M3 xDrive |
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07-03-2019, 02:35 AM | #5 |
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07-03-2019, 10:57 AM | #6 |
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The top of the turbo inlet. I have the Pure inlet though.
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2011 E92 335i | 11.7@125 SOLD
2017 Camaro SS | 12.7@114 SOLD 2019 Audi TT RS | 10.5@130 SOLD 2020 F97 X3M | 11.0@123 2023 G80 M3 xDrive |
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07-10-2019, 10:49 PM | #7 |
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So I got the turboboostleaktester for the n55 and hooked it up at the top of the turbo inlet. It is definitely leaking from the turbo inlet connection so much that I cant pressurized the system above 3 psi. I cleaned the rubber gasket and it looks fine.
Has anyone tested an n55 with the stock inlet without any leaks? |
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07-12-2019, 09:55 PM | #9 |
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I'd say try a new inlet pipe-to-turbo gasket. I pressure test using the stock inlet pipe and it does leak a little there, but I was able to pressurize my system to at least 10 psi with no issues.
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07-12-2019, 10:15 PM | #10 | |
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I did notice theres a bolt down there on the turbo. Your inlet pipe doesn't bolt on by the turbo does it? Theres nothing holding mine but the top bolt. |
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07-16-2019, 11:13 AM | #11 |
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07-16-2019, 07:04 PM | #12 |
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This happened to me to then I noticed there was no bolt holding the turbo inlet pipe lip to the turbo. Must've fallen out over time. After I found a suitable washer and nut to use, I was able to pressurize the system properly without it leaking there.
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