Thread: NOT the inlet air leak - 300Tdi Discovery 1997

Originally Posted by Blknight.aus

ive seen that before.

its caused by the weight of the pipe and vibration.

if when you pull the hoses off take it off of the intercooler side not the pipe side and check to see if its stepped, if its stepped replace it.

It's OK Dave, we heard you clearly the first time, first time, first time...

When I went to my spare hose bag, I found I had a new turbo elbow hose, a used but OK manifold hose and two of the short pipe to intercooler hoses, so it seems this one was well out of step and a lot older than the others. I'll slap myself on the wrist shortly.

I should have asked whether mere mortal LR owners had seen this before, not professional seen-it-all spanner wielders. When you've seen this before, has is caused a noise like a bad air leak?

Ian,on the side of the head,left side as your looking at the motor you'll see a black plastic cylinder bolted to the rocker cover with a drain line to the sump,thats the charcoal canister,they coke up over time and the drain line goes hard from the heat and splits,usually with a big cloud of smoke that'll have you swearing the engines on fire. Pat

Pat, that "black plastic cylinder" does not contain charcoal, It is a cyclone to seperate oil vapours and oil, the vapour goes into the inlet pipe from the aircleaner to turbo, and the oil drains back to the sump. Its basically a mini provent.. our 300TDi's were fitted long before they have become a fashion thingy They do need rinsing out now and then but.
Cheers Scott

Originally Posted by PAT303

Ian,on the side of the head,left side as your looking at the motor you'll see a black plastic cylinder bolted to the rocker cover with a drain line to the sump,thats the charcoal canister,they coke up over time and the drain line goes hard from the heat and splits,usually with a big cloud of smoke that'll have you swearing the engines on fire. Pat

Ah, I'm with you now Pat. Tho' I agree with Scott that it's a cyclone separator. Yes, I replaced the drain line to the sump just a few years ago as the original was looking a bit ratty.

The vent port hasn't gone back to the turbo inlet for over a decade - that's why my intercooler was quite clean. I have a 3/4" hose going to a second 'home brewed' cyclone separator over on the driver's side mudguard panel - a modified pneumatic filter/separator. Then the 'twice cycloned' vapour goes via another long hose to 'rust proof' the insides of the chassis members.

Originally Posted by AndrewMilne

Leo,
That's a very nice, clean engine for a 1997 vehicle!
Impressed.

Agreed. What are all those shiny bits? Don't think mine has got any of those.

Originally Posted by schuy1

Pat, that "black plastic cylinder" does not contain charcoal, It is a cyclone to seperate oil vapours and oil, the vapour goes into the inlet pipe from the aircleaner to turbo, and the oil drains back to the sump. Its basically a mini provent.. our 300TDi's were fitted long before they have become a fashion thingy They do need rinsing out now and then but.
Cheers Scott

Charcoal canister is just a generic term used before PCV-Provent style seperators came into being. Pat

Originally Posted by Leo109

What is that stiff plastic (nylon?) tubing used for the compensator line and the original fuel lines called, please? So I know what to ask for.

Any takers?