natas

Well-Known Member

• Mar 8, 2013

• #1

Just heard a new noise today.

It happens just before I hear the turbo start to whistle.

The sound is not to loud, perhaps a little less than the turbo whistle.

Its a high pitch sound, not as high as the turbo whistle, it kinda sounds like spun bearings. Kinda like the sound from a waterpump or alternator bearings.

Any ideas as to what to chek?

I tried to make her do it when she was parked by revving the engine but it would not. seems to have to be under load...............

Thanks.

 

offroadmad

Active Member

• Mar 8, 2013

• #2

Maybe turbo bearings

 

kes86

Active Member

• Mar 9, 2013

• #3

Exhaust manifold gasket? Not had this on a Landie but had an Astra Turbo Diesel that squawked when it came on boost and the manifold had come loose.

 

S

Sassenach

Member

• Mar 9, 2013

• #4

I had a similar problem a few months ago and suspected worn turbo charger bearings. However it turned out to be a blown head gasket. The noise got louder when I put my foot down because the gasses were being blown out at higher pressure and making a louder noise.

 

Brown

Well-Known Member

Full Member

• Mar 9, 2013

• #5

You've got a TD5 with one of those centrifuge oil filters haven't you? Is it the centrifuge? I can hear mine whirring sometimes after the engine is off.