Guys,

I had the catch can routed, but we undid them and now i cant remember which lines go where.

The setup is a little different as we are using all of the breather ports. I have labelled the lines 1 (contains lines from either side of the crank case), 2 ,3 and the catch can ports A, B, C..

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I'm a jockey kunts...

Someone needs to buy a roll of masking tape and a permanent marker!

Too much braid there!

Line 1 goes to 'B'
Line 2 goes to 'A'
line 3 goes to 'C' (catch can drain)

(well that's how I'd plumb it)

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[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]

hahaha Rosco, All of these removals were done in quick succession when we thought it was just a minor head gasket, and with the 5+ month time delay ive forgotten where everything goes...

However its all getting backtogether in time... hahahah

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I'm a jockey kunts...

Ideally any catch can drain needs to be below the oil level. Otherwise it's subject to crankcase pressure and the oil won't drain back.
Refer to my post in your other thread about pulling the Crawford sticker off not fixing the problem.

Doug. I didn't realize that was the case. Where should it be mounted then? Alot lower? I think it is in line with the top of the oil level.

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I'm a jockey kunts...

No, you misunderstand. The can can be mounted anywhere, but the point at which the drain enters the engine cannot be subject to crankcaase pressure. The only way it will work as a drainback is if the fitting goes in below oil level, like into the sump itself.
That was my point about getting LF to make one that suits the new pipework and actually works.

The way to eliminate the crank case pressure issue is to install a PCV in the drain line to prevent pressure going to the can but allowing the oil to drain back when pressure is not there. ie. whenever the engine is shut down. Simple and effective, one way valve.

Further-more the entire engine internals are subject to crankcase pressure including the oil in the sump, basically you could install a pressure gauge just about anywhere on the crankcase and record the internal crankcase pressure, even at the sump plug! (slighty false reading due to oil having a minor head pressure)

Oh interesting.. so i would just need to tap a line into the sump then?? Now would that cause an issue?? For example couldnt i just drain the oil from the turbo directly into the sump also??

Othwerwise i can install a PCV in the drain line to avoid this problem?? where can i get a PCV from??

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I'm a jockey kunts...

Yeah, I understand that. The key is that below the oil level the case pressure cannot blow any vapour up the drain line. The same way as gas from the sewer can't blow back up your toilet. The liquid keeps it down.

The simplest solution is to put a drain tap on the bottom of the catch can & manually drain it, rather than over complicate a simple catch can system.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]