Oil Catch Can

[JK017]

A few triton owners I have spoken to have all recommended the fitment of a catch can setup to the DID engine. Basically to stop oil fowling the intercooler.

Although I have not had a good look as to where you could install one and the best way to set it up.

Looking on ebay and it appears they go inline. (eg) Hose in and house out, so no fumes are released and the oil is trapped into the canister. Unlike the one on my performance car, which vents to the atmosphere, via a filter on the top of the catch can. Which is not technically legal

Has anyone else with the DID engine gone down this path? Or care to offer an opinion. thanks

[Goodsy]

Plenty if not most members that fit oil catch cans here use the closed system ones.
The problem is not burning crankcase vapour but burning oil.

Make sure you get a decent one. The cheapies can increase crank case pressure which is bad.

What are you looking at? The Provent 200 is a great unit.

[seagoon77]

Have a look at this thread, it has some good info.

http://www2.pajeroclub.com.au/forum/showthread.php?t=27770

Warren

[JK017]

Cheers for the link.

Looks like to provent is the best option, rather than one of the catch cans with the steel wool.

[tilly]

I want to fit a oil catcher, who has done this as I would like to know
where the hoses connect out of and where to if possible.
And a few pics would be great assistance.
Please dont refer me to the Pajero forum as its a different motor

[seagoon77]

Some ideas here: http://www2.pajeroclub.com.au/forum/...tch+can&page=3

Warren

[tilly]

I spoke with my mechanic today and he thinks that using a catch
can will stop the oil from lubricating seals and bearings in the turbo.
As Im not knowlegable in this area perhaps some one with greater
info can advise.

[old Jack]

change mechanic!

I am surprised that your mechanic thinks the Crankcase Ventilation inputs on the intake side of the turbo.
Turbo has it's own pressurised oil supply.
CV inputs after the turbo outlet and before the intercooler.

cheers, old Jack.

[RogerB]

I spoke with my mechanic today and he thinks that using a catch
can will stop the oil from lubricating seals and bearings in the turbo.

Sounds like the sort of thing the local Mitsubishi mechanic here would say before he engaged his brain.

[RMX]

I spoke with my mechanic today and he thinks that using a catch
can will stop the oil from lubricating seals and bearings in the turbo.
As Im not knowlegable in this area perhaps some one with greater
info can advise.

Interesting theory...... Your mechanic obviously hasn't noticed the oil feed and return from the turbo.

[Morville]

I am surprised that your mechanic thinks the Crankcase Ventilation inputs on the intake side of the turbo.
Turbo has it's own pressurised oil supply.
CV inputs after the turbo outlet and before the intercooler.

cheers, old Jack.

Actually your mechanic is correct, the crankcase ventilation inputs before the turbo. If it was after the turbo the turbo pressure would prevent the crankcase being ventilated.
Peter

[old Jack]

Old Jack is wrong!

Your right Peter, I should have looked under the bonnet to check.

The CV is connected between the turbo inlet and the air box, I pulled the hose off and the fitting out expecting some kind of valve but no nothing, I haven't remove the engine cover yet so I don't know if there is a valve at the engine end of the CV hose.

I still standby my comments that the turbo is not lubricated by the oil in the CV gases.

cheers, old Jack.

[fuelconsumption]

Your right Peter, I should have looked under the bonnet to check.

The CV is connected between the turbo inlet and the air box, I pulled the hose off and the fitting out expecting some kind of valve but no nothing, I haven't remove the engine cover yet so I don't know if there is a valve at the engine end of the CV hose.

I still standby my comments that the turbo is not lubricated by the oil in the CV gases.

cheers, old Jack.

G'day, OJ. Yes, the rocker cover is plumbed direct to the turbo inlet, with no valve of any sort at either end. It's very easy for me to see this, because one of the first things I did after buying the car was to rip off and discard that ridiculous plastic engine cover, pretentious lump of garbage that it is. Why would anyone want to look at a cheap, fake piece of black plastic rather than the beautiful engine? Beats me, people are so strange
And yes, the turbo has it's own force fed oil supply for the bearings.

BTW, I like your approach. Rave when you are right, but make an immediate, frank and full admission when you are not, which in your case is fortunately not often

[JK017]

When I had the pipe that goes to the throttle body off today there is a definate oil film inside the pipe and the last thing that I would wand in the intercooler.

As for catch can, I was thinking best place in the tight engine bay would be behind the right headlight.

However I am looking into fitting the TJM AirTech Snorkel. Could someone post a pix of where this snorkel runs on the inside of the engine bay. As fitting a catch can now might be more of a problem.

Cheers

[old Jack]

JK, I have been thinking about a catch can for some months as I to don't like the idea of oil condensing in the intercooler (this must reduce the intercooler efficiency) and from what I have read, the combined effect with the EGR gases can really clag up the intake manifold. Interestingly when I asked a Mits Tech about catch cans it was NO NO NO but couldn't explain why!

From my research, it appears the "Provent" catch can is the safest and best option but the problem is the PV200 is very large and the Challenger is limited for space to fit a PV200, apparently the diameter of the connecting hoses is critical so as not to build up back pressure, so I am a little concerned about lengthening the hoses by 3 times if the PV is mounted behind the headlight or some other distance from the turbo inlet as this will add back pressure also.

There is a smaller PV150 that is suited for the engine size and I will see if it is possible to mount this on the side of the airbox, so the hoses are as short as possible but the PV is far enough away from the heat of the turbo.

I will post a reply in the next few days on progress.

cheers, old Jack.

BTW, thanks FC for your kind words and I won't take the "rave when you are right" comment the wrong way.