Turbo making howling/siren noise
Durring a recent QOT pass It out of the blue made a loud howling noise and boost fell off. After that pull the boost hasn't dropped but it still makes a loud howling noise as it builds boost. So what could it be? There is some side to side shaft play but zero in and out. There are no signs of contact with the housing or damage to the impellers. I checked for any possible boost leaks but have not seen any but im going to pull all the piping, carb hat ect apart and make sure its all good.
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Re: Turbo making howling/siren noise
more vibration?
how much side to side play is there checked if the blades are damaged? |
Re: Turbo making howling/siren noise
See if a coupler has a small rip in it.
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Re: Turbo making howling/siren noise
Nut loose on the compressor?
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Re: Turbo making howling/siren noise
No the blades are not damaged at all, the nuts are tight also. When i get a chance ill inspect all the couplers and seals though.
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Re: Turbo making howling/siren noise
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Re: Turbo making howling/siren noise
yea it is ;D
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Re: Turbo making howling/siren noise
loud siren noise is usually metal to metal contact, are you looking at the turbo while its still on the car ?? if so thats not inspecting it, id take it off and really inspect it, it might be out of balance
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Re: Turbo making howling/siren noise
Originally Posted by ososlohatch
loud siren noise is usually metal to metal contact, are you looking at the turbo while its still on the car ?? if so thats not inspecting it, id take it off and really inspect it, it might be out of balance
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