Puma 2.2 burning oil!

[seedy deals]

Howdy all, Long time landy owner, new to aulro. Defenders are my vehicle of choice, 1993 110, 1998 130, 2011 130 and a 2016 130.
Got a tricky problem with my 2016 defender that i thought collective wisdom may be able to assist.
Cars done 111,000 and it's started burning heaps of oil over the last 5000kms. I'm talking more than a litre every 1000km. No loss of power, no obvious smoke on start up or high revs, no starting issues, no overrunning on shutdow, no oil leaks. Oil pressure checked and all good. Rocker cover and sump off and nothing obviously out of place.
Heaps of oil through the air intake and turbo/intercooler. Appears to be coming in from the hose that runs from the rocker cover to the air intake just before the turbo. I'm thinking its pumping too much oil up to the top of the motor, and essentially overflowing but seems strange. Maybe the oil pressure relief valve in the oil pump?
If anyones got any ideas would be much appreciated.
Cheers
Sam

[justinc]

Dusted? 😣😣😣

[Tombie]

Dusted?

That’s what I immediately thought 🤨

[DiscoMick]

I assume the right oil was used at the last oil change?

[bemm52]

Dusted? 😣😣😣

.....????

Cheers Paul

[Tombie]

I assume the right oil was used at the last oil change?

Also worth checking.

I’ve seen engines that just didn’t like a particular oil and would burn it... change back to the original and all good again.

[seedy deals]

Oil n changes good, same with air n fuel filters, runs hard in tough environment but hard to imagine dusted! Symptoms do sort of fit but how would you explain sweet starting, running and full power?

[Tins]

Oil n changes good, same with air n fuel filters, runs hard in tough environment but hard to imagine dusted! Symptoms do sort of fit but how would you explain sweet starting, running and full power?

Well, a broken oil ring could do it. So, barely, could a broken valve guide ( but that would likely have a noise ). Not saying that's what's wrong, merely answering the hypothetical.

What sort of crankcase ventilation do those engines run? Fairly common cause of oil consumption on some engines, but I know nothing at all about the Pumas.

[manic]

Oil n changes good, same with air n fuel filters, runs hard in tough environment but hard to imagine dusted! Symptoms do sort of fit but how would you explain sweet starting, running and full power?

Is it possible you are loosing some oil past the turbo oil seal?

Seeing as its running well I'd be tempted to clean out the intake pipes plus IC, and redirect the crankcase vent to a catch can. Give it some more kms and then see how much oil lost vs collected and if theres any oil to be found in the pipes post turbo.

[seedy deals]

Is it possible you are loosing some oil past the turbo oil seal?

Seeing as its running well I'd be tempted to clean out the intake pipes plus IC, and redirect the crankcase vent to a catch can. Give it some more kms and then see how much oil lost vs collected and if theres any oil to be found in the pipes post turbo.

Good idea. Will certainly help to pin it down.
Suspected turbo at first, but there was so much oil in the intake directly upstream from (and downstream from crankcase breather hose) that i decided it couldn't be coming from there.
Thanks
Sam