Turbo ..where is my whistle??? - Page 2

TonyS9 · Sep 17th, 2010, 21:39

My turbo only whined after I overheated it.

When I replaced with a refurb, that one didn't whine.

Maybe it has just run in nicely. Surely he'd be complaining of power issues if it had stopped working.

1stRaven · Sep 17th, 2010, 21:53

Quote:

Originally Posted by Jim760

most of you are missign the point..t he cap is saying he can no longer hear his turbo.. this says to me its not boosting, actuator is stuck open or somethign stupid..

Quote:

Originally Posted by TonyS9

My turbo only whined after I overheated it.

When I replaced with a refurb, that one didn't whine.

Maybe it has just run in nicely. Surely he'd be complaining of power issues if it had stopped working.

Exactly Tony. If the turbo wasn't spooling at all, the car would take an age to accelerate and the drop in down would be pretty large.

silveruser · Sep 17th, 2010, 23:06

Whistle sound made by turbo means its time to think of saving for another one.

On my 740 turbo is silent and thank God for that.

1stRaven · Sep 18th, 2010, 12:04

Quote:

Originally Posted by silveruser

Whistle sound made by turbo means its time to think of saving for another one.

No it doesn't

+ YouTube Video

You can hear the whistle on that vid and the turbo was brand new. it just means it working hard.

CTCNetwork · Sep 18th, 2010, 13:07

Hi,

Could also mean there are cracks in the manifold or turbo housing.
Not necessarily an issue but will need remedying at some point in time..

Des. . .

1stRaven · Sep 20th, 2010, 14:32

Quote:

Originally Posted by CTCNetwork

Hi,

Could also mean there are cracks in the manifold or turbo housing.
Not necessarily an issue but will need remedying at some point in time..

Des. . .

I dont think I have seen a standard exhaust manifold without cracks in it.

Dr. Rog · Sep 20th, 2010, 18:24

Quote:

Originally Posted by Dr. Rog

Nicely run in?

My "old" car had a very quiet turbo, difficult to hear inside the car in normal use. I used to wind down my window and drive past walls while booting the gas, then I could hear it spin up and feel the boost on top of the gas surge as it did so.

May I suggest you do likewise? Try with different rates of pedal pressing, too fast and it spins up almost instantly, same as all the other noisy ancillaries. You need to get it to vary its speed without much engine speed change.

Make any progress?

Sep 18th, 2010, 13:07	#15
CTCNetwork Forum Support Team Join Date: Dec 2004 Location: Liège, Belgium View Photos By: CTCNetwork	Hi, Could also mean there are cracks in the manifold or turbo housing. Not necessarily an issue but will need remedying at some point in time.. Des. . . __________________ Density:- Not just a measurement ~ It's a whole way of Life.! ! ! I drive a Volvo, Please Don't Get In My Way! OldVolvos4Ever He shows up. People die. He vanishes. People should not be afraid of their governments. "He'll deliver more justice in a weekend than 10 years of your Governments should be afraid of their people... "V" courts & tribunals. Just stay out of his way." "I plan to."

Sep 17th, 2010, 21:39	#11
TonyS9 Premier Member Last Online: May 19th, 2024 20:22 Join Date: Jul 2009 Location: Holywood	My turbo only whined after I overheated it. When I replaced with a refurb, that one didn't whine. Maybe it has just run in nicely. Surely he'd be complaining of power issues if it had stopped working.

Sep 17th, 2010, 23:06	#13
silveruser Diablo Driver Last Online: Sep 14th, 2020 19:10 Join Date: Jun 2009 Location: Chesterfield	Whistle sound made by turbo means its time to think of saving for another one. On my 740 turbo is silent and thank God for that.

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