Defender TD5 Turbo

Guys and Ladies,

My turbo decided to give up.... That's life I suppose.

I bought one off "rip off bay" as serviceable. However does anyone know the acceptable amount of play on the impeller bearings (side to side on impeller). The one I bought has about 1/8" plus play, my old one (tested a year or so ago) had none. Impeller really really close to casing when "wobbled"

The guy sold as serviceable off a running engine he said ??? but I am in sure as even to fit. I cannot afford a new one so I am a bit stuck really.

Any advice is greatly appreciated.

Thank you

It's possibly serviceable, but you'll have to send it away to a specialist for that.
Did your original disintegrate? What do you mean by give up?

The hose deteriorated and a bit lodged or went through the impeller, any how its Fooked!

We use to fit replacement impellors, shafts and bearings on Scania truck turbos, Garret and Holset, not exactly rocket science and the kits are available for most turbos.

Get on the web with your turbo details (turbo make and number, not just 'Defender Turbo) and see what is out there.

http://www.ebay.co.uk/sch/i.html?_f...it.TRS0&_nkw=turbocharger+repair+kit&_sacat=0

Peter

I used to fit gas turbines for Rolls Royce so an impeller on a turbo is simple, however it scored the casing badly hence fooked. A new impeller repair was not an option.

I bought one off this dodgy git from Oxford on e bay saying it was serviceable, serviceable my arse! It rattles 3/16 of an inch and the bearings are shot.
So now I decided to buy a new one which is fitted now.

Mr dodgy will not accept the old one is cooked and accept a return, hence step in girlfriend who is a solicitor and has set the ball in motion to have him in court at no cost to me as long as I service her Harley....winner

listerdiesel said:

We use to fit replacement impellors, shafts and bearings on Scania truck turbos, Garret and Holset, not exactly rocket science and the kits are available for most turbos.

Get on the web with your turbo details (turbo make and number, not just 'Defender Turbo) and see what is out there.

http://www.ebay.co.uk/sch/i.html?_f...it.TRS0&_nkw=turbocharger+repair+kit&_sacat=0

Peter

Click to expand...

I agree that's a better bet than buying iffy "good condition" turbos off e-bay, there are some good sellers out there but some unscrupulous sods just put their junk on e-bay and don,t care.
To function well a turbo compressor has to have minimum clearance between the impeller and the housing otherwise you loose efficiency, so if the shaft has too much play then it cant be working well.
If the impeller touches the casing then it will rub and this will spoil the balance, because of the high rotation speed these things have to be balanced to milligrams, otherwise they will shake apart.
I have seen these CHRA kits and if fitted very carefully they should be a good idea, might be best to ask if anyone has used one and can recommend a supplier.