Diy cdti oil catch tank

[winnie2457]

Hi all I have done a free diy catch tank

equipment I have used is
500ml pop bottle
1meter of garden hose
itg sock filter
and a blanking plug

I 1st drilled holes in the plastic pop bottle at the top near the neck drilled about 20 3mm holes i then cable tied the sock filter over the holes so it's filtered I then drilled a hole in the screw cap big enough the push the garden hose into. I located the bottle just in front of the drivers wheel in the bumper where the flap is on te undertray

I fed the hose up through the engine bay and attached it to the oil seperator breather hose so now the oil will breath into the bottle and vent to atmosphere. While collecting in the bottle which I can screw out to empty

I then took of the rubber pipe that comes from the inlet pipe just after the maf where the pipe would normally breath onto the inlet system and I have blanked this so it's air tight

I mow have a oil free inlet system while it's venting to atmosphere

total cost is nothing

I have pics which I will put up soon and now I can monitor how much oil will collect in te bottle

Any comments welcome I know it's scabby lol but all you can see is a little bit of garden hose as the bottle is hidden and can only be seen by pulling the flap down

Pics to follow either today or 2moro when I put them on computer

[winnie2457]

pics as i promised

[the-wizard]

This will stop the oil residue from entering the inlet system! And will eliminate the crud type material build up in the manifold as you will now only have hot/dry sooty residue entering the manifold via the EGR witch will 'not' cause any problems in the manifold!, its only when the 2 mix the problem occurs!, Also i don't think and I'm fairly sure you wont get much oil in the bottle 'if any', The ''draw'' from the pipe you have diverted from has a sucking action within the oil separator so without this you should get the 'old fashion 'naturally aspirated' type action. sort of suck 'n' blow thingy! as long as the bottle can give 'free breathing' to the pipe you have connected to it. this MUST ALLOW THE ENGINE EASY BREATHING. with no restrictions.

[Derek Mc]

I posted a similar question post to this yesterday as I knew it worked on Jeep's 2.5 and 2.8 VM CRD diesels.

Is this a valid option then as I would gleefully buy a pretty little stainless steel trap and fit it if I can remove the EGR issues associated with the engine, I also reckon that the final emissions level would be significantly lower without the hydrocarbon injection from the original system.

[the-wizard]

This has been discussed with myself and other members before, And the only foreseen problem is!, if you do this the ''catch tank'' must be ''free'' to breathe and 'must' be placed in a position where its fumes/odors will not enter the engine bay, they will be sucked into the heater/ blower system and you will get these 'smells' drawn into the cabin area.

[Derek Mc]

So if you do the traditional method of venting to this catch can, but then routing the pipe back to the intake closing the sealed loop?

I would then fit one of these

http://cgi.ebay.co.uk/UNIVERSAL-POLI...#ht_2922wt_994

[OPC]

]So if you do the traditional method of venting to this catch can, but then routing the pipe back to the intake closing the sealed loop?[/B]

I would then fit one of these

http://cgi.ebay.co.uk/UNIVERSAL-POLI...#ht_2922wt_994

Could you explain a little more please, do you mean differently to the top post?

[winnie2457]

If you do vent it to the oil catch tank then back onto the intake system you will still get smoke and very hot air going back into your engine and you want cold air that's why you have a intercooler so it's best just venting it to atmosphere so you have only fresh air going onto your engine and all the oil being caught in the catch tank or bottle on my case and the hot smokey air can escape into the air and not back into engine

[Derek Mc]

Could you explain a little more please, do you mean differently to the top post?

I was looking at the "generic oil catch can it has an atmos, filter on it plus and inlet and outlet so, if instead of blanking one pipe as you have at the minute, taking twin pipe's one for each connection and re routing the pressurised vapour back again after the oil has dropped out, it would complete the cycle?

Maybe maybe not I was just looking at the way they were plumbed in to the Jeeps and the end result is just as you, less (well almost no) build up in the egr system intercooler and intake.

Derek

[Derek Mc]

By the way I am in no way taking away from your concept I think it's genius as the oil is acting as a binding agent in the egr and manifold presently in 99.9% of every Common rail diesel engines on the road, this was a proven method used by Jeep owners all over the world with amazing rates of success, and I for one will be looking to replicate this on my very own car after the three year warranty runs out.