Turbo Failure

Thanks Laurie. Yes new CHRA. Which means turbos out. In some ways it would be good to see how many hours MR spend removing the turbos and what Chris's old turbos look like. Replacing the CHRA would be a lot cheaper than new. Would there be a local BW or Garrett supplier for these? First step is really having a look at the impeller blades.

Also it may be nothing but pre EGR disabling I would get a lot of black soot on the rear mud flaps. Post disabling there's almost none. Post MAPs clean none. But it's not that long ago so will continue to monitor that. Post MAP clean is using less fuel.

These are the BorgWarner factory Australian dealer and repairer.

http://www.turboaustralia.com.au/inside.borgwarner.ews

Just looking at prices of cartridges/cores on other Australian sites they are about 2 to 3 times the price here [bigsad] compared to the UK. Re-con turbo,s in the UK with 2 year warranty are around $600 + freight. The biggest dilemma or question is warranty for the unit and fitting ??? Once off they are relatively easy to work with !

Laurie

Has the silicon pipe option been explored? There is a UK company selling an intercooler pipe kit for the TDV8 which including postage is considerably cheaper than the OEM pipes I can get anywhere else. I did have a silicon pipe come off a TD5 once, I think this was more my fault than the pipes. Are silicon pipes more prone to coming off? This would of course lead to turbo over spooling, real bad!!!!

Cheers Marty

After looking back through a few threads on FFRR forum, it seems 300,000km is about when turbos fail. Although there are a few reports on various sites of others failing a lot earlier.

However, the motors are normally ok unless a foreign object is ingested or it loses all its oil.

[QUOTE=Laurie;2695649]Graeme
This is the link to the BW bearing setup, I couldn't get the cut-away diagrams to load !


Design and Function of a Turbocharger - Bearing system | BorgWarner Turbo Systems


Surely it would be safe to assume Ford would have required a roller/ball bearing turbo in a motor built from 2006, over a journal bearing turbo.

Ball bearing turbos are fast spin-up but an oil bearing turbo has a much longer life and is not prone to instant bearing failure.

Thanks Graeme. So failures could indicate these are ball bearing turbos, maybe fitted to satisfy a performance objective. Hopefully we will get a look at Chris's old turbos.

I would not expect a ball-bearing turbo in this application - a different story for a high revving, high performance petrol engine. LR made lots of noises about the TD5's turbo shaft floating on oil for longevity.

Thanks, I thought journal bearing turbos where out of favour. I fitted a Garrett ball bearing turbo to the 4bd1 Perentie about 10 yrs ago. It does spool up quick, very little lag.

A snapped shaft in one turbo with the other drowned in oil, as most other things. She's back on the road like Puffing Billy until all is burnt out and I'll have her back next week.

Anyone want to buy a kid?