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Old 10-26-2012, 10:27 PM   #1
EricInHoodRiver
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Member#: 299737
Join Date: Nov 2011
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2011 WRX Hatch
Cobb Stage 2 Protune

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Solved! I was having the leak at wot at around 3500 rpm in third--sounds like a belt squeal/chirp for a second or two--bunch of folks have posted about this. Anyway, many suggested that the worm clamps especially at the TB are not up to the task. Replaced all worm clamps with fastenal t-bolt clamps and leak squeak is gone. Both a smoke and a pressure test confirmed what my ears already knew-- leak fixed.

Eric
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Old 11-26-2012, 09:53 PM   #2
Zaklowery
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What is the method of sealing on the TB to IC hose? Clamped only? Clamos with adhesive? My dealer said from the factory they do something weird with adhesives to make my 12 leak...
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Old 11-26-2012, 10:00 PM   #3
EricInHoodRiver
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2011 WRX Hatch
Cobb Stage 2 Protune

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I had my mechanic use tbolts and silicon hose lube. Did the trick for my stage 2 at 16-17 psi
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Old 11-27-2012, 02:13 PM   #4
RosscoB
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2012 Impreza WRX
WRB

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Quote:
Originally Posted by EricInHoodRiver View Post
Solved! I was having the leak at wot at around 3500 rpm in third--sounds like a belt squeal/chirp for a second or two--bunch of folks have posted about this. Anyway, many suggested that the worm clamps especially at the TB are not up to the task. Replaced all worm clamps with fastenal t-bolt clamps and leak squeak is gone. Both a smoke and a pressure test confirmed what my ears already knew-- leak fixed.

Eric
I get the same sound from the same setup in the same rpm ranges, but a smoke test showed no leaks. Perhaps replacing the worm clamps will help.
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Old 11-27-2012, 06:58 PM   #5
EricInHoodRiver
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Member#: 299737
Join Date: Nov 2011
Chapter/Region: NWIC
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2011 WRX Hatch
Cobb Stage 2 Protune

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Prior to tbolts, I had the PW tmic worm clamp pop off the turbo outlet flange 3 times at 18psi and at least once at the TB. I think tbolts are the way to go and should really ship with the PW. They are cheap to buy from Fastenal, regardless
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Old 11-28-2012, 02:04 PM   #6
jaymmmbee
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Location: Bend, Oregon
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2006 spec.B
Ti Silver Metallic

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Definitely replace the cheap clamps that came with the PW with quality Tbolts.
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