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Tumbiri

Member Since: 01 Nov 2016
Location: Caribbean
Posts: 52

2013 Defender 110 Puma 2.2 XS CSW Orkney Grey

Defender 2.2 Puma - Oil in Charge Air Cooler Exhaust Duct

Found the exhaust duct from the charge air cooler split (causing engine to throttle back). While changing it I noticed there was some oil smeared around the duct where the split was. There was also oil smeared on the inside surface of the duct.

Is it normal for the turbocharger to release some oil as vapor during normal operation or is this indicative of failing bearings in the turbocharger? The engine crankcase breather hose is connected to the air-cleaner-to-turbocharger intake duct; could the oil be from the breather? By the way, my engine does not show noticeable oil consumption between oil changes (every 6 months). Would appreciate some guidance; don't want to wreck my turbocharger. Thanks.

9th Nov 2019 11:24pm

DSC-off

Member Since: 16 Oct 2014
Location: North East
Posts: 1351

2015 Defender 110 Puma 2.2 XS CSW Aintree Green

Hi,
It is normal to get oil in the inlet duct, I think it will be from the crank case breather.
Over time it builds up and can appear to be excessive.
After the EGR valve, the exhaust soot mixes with the oil and this looks terrible.

Clean the pipes and check them in a few months time, if you are concerned about it.

10th Nov 2019 6:37pm

Tumbiri

Member Since: 01 Nov 2016
Location: Caribbean
Posts: 52

Thanks for the reply. So that I understand correctly, is what I'm seeing oil that starts off in the inlet duct (from the breather) and eventually works its way through the turbo charger and charge air cooler to the exhaust duct? You mentioned only the inlet duct so I'm not too sure.

11th Nov 2019 3:03am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 16877

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Fit a Provent filter and this should stop.

Use the forum search facility (search "Provent") for more information.

11th Nov 2019 11:32am

Tumbiri

Member Since: 01 Nov 2016
Location: Caribbean
Posts: 52

Thanks, will do.

11th Nov 2019 7:52pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7686

2011 Defender 110 Puma 2.4 USW Stornoway Grey

Dont worry about it.unless you have oil usage. Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

19th Nov 2019 8:00pm

Tumbiri

Member Since: 01 Nov 2016
Location: Caribbean
Posts: 52

Thanks JST; my conclusion is, it's not a concern. While I have you; I don't see a Maintenance Schedule item to check the PCV valve. Do you know how often this has to be checked?

20th Nov 2019 6:56pm

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