2007 (57) XJ 2.7

hello there please can anyone help to see what the problem is. i have got the oil leak down to the air intake pipe so i removed it to fine oil in it and up the intake, not loads but enough to make me bit worried.

no smoke on start up or running just this oil, and oil level fine and no other signs of leaks.

please can anyone have some ideas

 

This is a diesel, right ? All engines have equipment to regulate crankcase pressure caused by blow-by past the piston rings. It is normally directed to the intake manifold somewhere, so what you have seen is not unusual. However, it is not entirely clear from your post where this oiling is situated, so can you be more specific, or post some pics. You would be amazed at where oil vapour can end up !!

 

I assume you have a diesel and the sump scavenge system is the same as the petrol engine.

See here my recent post:


Three times in 5 years!

I love my Jag as we all do and I usually drive it as if I am on ice and mostly around town.

On two occasions when I floored it to overtake a truck I saw clouds of white smoke behind me, and I mean CLOUDS!! ie a hazard to traffic behind!

I searched this forum for an answer and found one which rang true (you gotta use instinct with cars!). What a fantastic resource this forum is!

Basically this engine sucks air from the atmospheric side of the TB through the crankcase up to the PCV (plastic valve on top of the engine) and back via the engine side of the TB.

If you drive your car like I do, with time oil builds up in the PCV and assoc. pipework and when you floor it this oil is pushed into the engine and this causes the dense smoke.

I removed PCV and pipework, cleaned with petrol and replaced.

Went for a drive,floored it and nothing, nada, out of the back end.

It is a feature of this engine I suppose.

The engine oil level was on max, maybe 75% would reduce the oil deposition.