Strange sound from turbo
#1
Burning Brakes
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My turbo started smoking after being caught in standstill traffic and heatwave where headers turned slightly amber, oil temp went to 10 o'clock and oil pressure dropped to slightly below 1, so i had to hold the throttle slightly open to keep idle speed above 1k rpm to maintain oil pressure above 1.
Anyway, turbo has been repaired and no more smoke. The one thing I notice that I never noticed before is when I shut down my engine there is this lingering sound that is soft but sounds like a electric motor winding down. It's propably the turbo blades just spinning down but I never did notice this sound before
Is this normal? Turbo works perfectly otherwise in normal driving
Anyway, turbo has been repaired and no more smoke. The one thing I notice that I never noticed before is when I shut down my engine there is this lingering sound that is soft but sounds like a electric motor winding down. It's propably the turbo blades just spinning down but I never did notice this sound before
Is this normal? Turbo works perfectly otherwise in normal driving
#3
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What oil were you using when your turbo failed ?
Sure it's not just the tic tic crac crac noise ? A policeman accused me of speeding once because my carrera did this when I shut it off. The police ask you to turn off the car when they stop you... I do think he was serious
Sure it's not just the tic tic crac crac noise ? A policeman accused me of speeding once because my carrera did this when I shut it off. The police ask you to turn off the car when they stop you... I do think he was serious
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no it's not the tic tioc crac crac sound. It's like an aircraft engine when it shuts down...like a turbine spinning down but it's subtle. I was/am using Mobil 1 5W-50
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Originally Posted by Staffan
Never had this sound, are you sure it's from the turbo, you have the heater blowers back there as well ?
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Originally Posted by 911addict
Pzull,
I recall you had some mods done recently. How is it going?
I recall you had some mods done recently. How is it going?
#11
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Update for all that might have this problem in future.
I thought and was told nothing is wrong to have that sound but when we took out the intercooler to access something we needed to access for another purpose, we found oil everywher in the pipes after the compressor, intercooler and throttle body....loads of it. The turbo on compressor side was in a small pool of oil (which may be the cause of the sound as the oil and turbine interacted)
It was oil seals that were not fulfilling their job. Anyway replaced with a used yurbo for the moment just for tuning and will put in a new one in next couple of weeks
I thought and was told nothing is wrong to have that sound but when we took out the intercooler to access something we needed to access for another purpose, we found oil everywher in the pipes after the compressor, intercooler and throttle body....loads of it. The turbo on compressor side was in a small pool of oil (which may be the cause of the sound as the oil and turbine interacted)
It was oil seals that were not fulfilling their job. Anyway replaced with a used yurbo for the moment just for tuning and will put in a new one in next couple of weeks