Disco 2 Is this too much play in the turbo?

I'm guessing it is, since my father in law (used to be a mechanic, though for engines more like trucks/RVs generally) reckons it sounds quite off and continues for quite a while after turning the engine off.



If so, is it anything I could sort myself with basic tools, or would I be better off looking at a replacement? Hows this reconditioned one likely to be?

Naf623 said:

I'm guessing it is, since my father in law (used to be a mechanic, though for engines more like trucks/RVs generally) reckons it sounds quite off and continues for quite a while after turning the engine off.



If so, is it anything I could sort myself with basic tools, or would I be better off looking at a replacement? Hows this reconditioned one likely to be?

Click to expand...

Yeah that's phucked.

Take it off and get it refurbished if you can live without it a few days or get one from a reputable firm, some so called refurbished ones on interwebs are just fitted with the cheapest and nastiest cassette out of china and blazed over with a bit of silver paint an called done.

Should I be checking for anything in particular as a cause of the failure? I've seen something saying that they don't fail due to wear...

A few months ago I have also removed my turbo as we have found the pressures low and also has slight play like yours. The specialist has told me that nothing is wrong with it, it has refurbished by changing internal parts.
They have also said that some radial movement is normal (if rotoating part does not reach housing of course) but axial is not acceptable.
But better to show it to someone if you are not sure....

No, too much play. The radial movement is usually up to max 0.7 mm overall, with way less for axial play. ie you can move it across a tiny bit, but shouldn't be able to pull it in and out!

When running the small gap in the internal bearings fills with pressurised oil and rides on this oil film with much less friction than a roller bearing, that's how they can spin so fast (100,000's rpm's). Once they've started to wear they need replacing as soon as possible 'cos the wear usually accelerates until the turbo shits itself. Bearings can be changed, but it's easier in my experience to get either a new turbo or a new inner cartridge complete.