Thread: Oil in 300Tdi intake

If its the same setup as the 300tdi in a Disco, then the crankcase breather goes into the intake duct between the air filter and the turbo inlet so you can end up with a bit of oil that way.

Steve

Originally Posted by steveG

If its the same setup as the 300tdi in a Disco, then the crankcase breather goes into the intake duct between the air filter and the turbo inlet so you can end up with a bit of oil that way.

Steve

x2 what he said

Fairly ordinary oil catcher, therfore always sucking in oil vapours. Reduces efficiency of cooler

TBH - It is not uncommon on the 300TDi to get an oil residue on the inlet side of things. As such, cleaning out the intercooler is a regular service task.

As for what causes it...

• Rocker cover breather... Need to clean out the canister.
• Turbo charger.
• EGR (if still fitted...)

HTH

M

So, has anyone disconnected the crankcase breather return pipe from the intake and vented it to the atmosphere ? Is there any problem in doing this, apart from (more) oil dripping on the garage floor. It just seems wrong having all that black crap in the intake and intercooler.

Murray

i tried with a boy racer oil separator thing but its made things worse as the pipe was too small, howevre am running 200tdi and that breathes real heavy ie oil drips out of air filter, tried claening repalcinbg most things so now just liv ewith it

Originally Posted by rijidij

So, has anyone disconnected the crankcase breather return pipe from the intake and vented it to the atmosphere ? Is there any problem in doing this, apart from (more) oil dripping on the garage floor. It just seems wrong having all that black crap in the intake and intercooler.

Just live with it, it's not doing any real harm...

You're going to do more harm by letting it vent into the atmosphere. Not only are you going to be letting the oil fumes out but you're going to run the risk of letting water/moisture and other stuff in.

M

Contrary to the above posts, it IS doing real harm. Oil laden with soot is well known for killing turbochargers in heavy diesels. That is why all of them have crankcase filters these days. A bunch of people on here have Provent crankcase filters for their 300Tdis. Most have not yet fitted them though

Such filters will remove 90+% of the oil before it can get to your intercooler or turbo.

Originally Posted by isuzurover

Contrary to the above posts, it IS doing real harm. Oil laden with soot is well known for killing turbochargers in heavy diesels. That is why all of them have crankcase filters these days. A bunch of people on here have Provent crankcase filters for their 300Tdis. Most have not yet fitted them though

Such filters will remove 90+% of the oil before it can get to your intercooler or turbo.

And I didn't put my hand up for one because I would only be doing about 10000km (or less) per year, but at least it would have been fitted.


Martyn