Thread: think the turbo is going?

A certain amount of whistle is fine on any turbo. A little oil can be feeding in from the PCV valve (crankcase breather) on td5's and getting sucked through the system (this is normal) as a mist in the fumes. If there's a valve in the hose leading to the turbo have a look and see if there is oil BEFORE the turbo. A small amount from this is normal, and of course may build up and pool over time.

Search "provent" here for an interesting solution.

If you are losing oil noticably, there is a problem.

A lot of oil from the crankcase breather could point to a broken ring or holed piston!

BE CAREFUL if it is a lot of oil in the intake!! It could run through the system and possibly cause the engine to run on uncontrollably!!
Once the source is found you may also want to clean out the intercooler - run a search here on that too.
Like I said, just speaking from TD5 experience!

Good luck!
Dave

Thanks for the reply. I probably forgot to say it has only developed the whistle uptil now it has been relatively quite

Doesn't sound promising - as long as you are sure it's from the turbo not a bung bearing on the serpentine/fan belt...

Think it probably is as the whistle only starts up when the turbo really kicks in
Thanks
anyway

Check your manifold studs. I have just gone through a long, lengthy and possibly expensive exercise with symptoms just like yours.
I thought it was a turbo going so I fitted a new one, and guess what, the whistle was still there.
Replaced a few manifold studs and gaskets and all was well.
As an aside, in my indecision, I decided to keep the new turbo on as the old one was sure to have suffered some wear after 190,000 ks, so, paid the extra and rested assured that a new turbo must be a good thing.
5 months later and less than 10000kms and the new turbo blows up stranding me in the middle of nowhere.
The long and short of the story is that Garrett now says it was oversped (on a TD5!!) and are reneging on warranty. At least I still have the old one to fall back on.
As I said, check manifolds and then tread carefully.
Regards
Glen

Have you pulled the turbo off and had a look at it? How are the blades etc on the impellor? Are they worn? Is there play in the shaft?

Also, i just put a new motor in my disco and after hooking everything up i missed the braded hose (about 25mm in diameter) that runs around the back of the motor from the drivers side of the engine and hooks up under the one of the larger hoses. With that hose of the turbo whistle was quite loud, when i noticed that hose was missing and hooked it back up the whistle disapeared. Matt

at least on TD5 a leaky manifold makes a squeal sometimes like a slipping belt...

Dave

exhaust that is...

Thanks for the ideas guys haven't pulled the turbo apart yet will check out the other stuff first and check turbo as a last resort
Cheers
Josh