[Engine] Real lack of power on hills

[flanagaj]

So having stripped the turbo off I discovered that the turbo vane shaft had snapped. This explains the earlier confusion that the air intake side would rotate all be it quite stiffly.

[jj9]

You've been very lucky that the compressor didn't break up into pieces and get sucked through the intercooler etc.

If the compressor housing isn't badly damaged you will be ok with a new turbo cartridge.


.

[flanagaj]

You've been very lucky that the compressor didn't break up into pieces and get sucked through the intercooler etc.

If the compressor housing isn't badly damaged you will be ok with a new turbo cartridge.


.

Agreed, I was very lucky and there is absolutely no damage to either side of the housing and there was no damage to the actual vanes.  The shaft had just snapped.  I suspect oil starvation and sudden overheat of the shaft causing it to jam and snap?

Good news, as like you say a replacement cartridge is much cheaper.

Thanks for your help, it has been most appreciated and has saved me a large garage bill :-)

[jj9]

It's good news that the housing is ok.

Yes it could be oil starvation.

Not guaranteed to be the cause but you may have read about the small mesh filter in the banjo bolt that feeds the oil pipe to the turbo, if this filter becomes clogged it stops or seriously restricts the oil flow to the turbo. The general consensus is to remove the filter from the banjo bolt, I would be removing it if fitting a new turbo.

If you follow the excellent detailed videos that saskak made you won't go far wrong.

Keep us posted on how you get on.

Good Luck with it.

[flanagaj]

It's good news that the housing is ok.

Yes it could be oil starvation.

Not guaranteed to be the cause but you may have read about the small mesh filter in the banjo bolt that feeds the oil pipe to the turbo, if this filter becomes clogged it stops or seriously restricts the oil flow to the turbo. The general consensus is to remove the filter from the banjo bolt, I would be removing it if fitting a new turbo.

If you follow the excellent detailed videos that saskak made you won't go far wrong.

Keep us posted on how you get on.

Good Luck with it.

Thanks.  Will do.

ps - the banjo bolt did have the small mesh filter and it did look pretty clogged.

[cancunia]

Probably worth taking the sump off too in that case.

[jj9]

If the filter looked pretty clogged then yes it will be oil starvation that caused the problem.

Does your vehicle have a DPF filter?


.

[flanagaj]

Probably worth taking the sump off too in that case.

Yes.  I am planning on doing that too so as to ensure the pickup filter is clear.

If the filter looked pretty clogged then yes it will be oil starvation that caused the problem.

Does your vehicle have a DPF filter?

No.  It doesn't have a DPF.

[Sol]

It's actually a Citroen service bulletin to remove and not refit that gauze in the banjo bolt

[jj9]

No DPF is better for the engine. 

From what I've read the early 1.6 hdi engines with a DPF seemed to suffer more from turbo failures than them without.
I believe the DPF causes back pressure and leads to the oil becoming contaminated, not a lot you can do if you have a DPF other than to make sure it does it's regens when it should and change the oil regularly.

See what you find on the oil strainer and take it from there.


.