Crankcase ventilation?

FerociousP · \r\n \r\n \r\n 05-18-2010, 10:28 AM\r\n \r\n \r\n

Okay, I have an 87 TII engine in my vert. I have the emissions removed, so the charcoal canister is gone. I've been doing a little research into crankcase ventilation, and needed a little bit of clarification.

I read that improper ventilation could lead to oil problems, such as blow-by in the turbo, and other phenomena. On my engine, on the intermediate iron, there is a nipple below the oil filler neck, which is capped. The nipple on the oil filler neck is open.

From what I understand, the nipples are used for crankcase ventilation. Air is sucked in from the lower nipple, through the engine, and the upper nipple is used to vent the gases/whatever. Now, from what I understand, the oil catch can is what you use to collect the vapors and oil residue if you have removed the stock systems.

The set ups that I have seen have a breather on the lower nipple, and the catch can attached to the upper nipple. I've also seen a breather on the lower nipple, and the upper nipple attached to a PCV valve which is connected to the intake manifold. I've also seen the lower and upper nipples connected to a vented catch can!

My question is, what can I do? From what I've gathered, I should be able to just attach a breather to the lower nipple to allow airflow in, then attach some sort of canister to the upper nipple to collect the misc stuff coming out.

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