E36 oil catch can install

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BMW 2 Series. BMW 3 Series. BMW 4 Series. BMW 5 Series. BMW 6 Series. Cut the hose to length and clamp it in place. Do you want a "catch can" or an oil separator? I made an oil separator for my Mustang's PCV system out of an old glass fuel sediment trap. I put the input down to the bottom with a copper tube and filled the glass with a brasso scrubby pad.

A catch can can be much simpler. I think a lot of them sell the same part. I have it on my RN Truck. I plumbed it in with some PCV valves so that it will auto-drain back into the cam cover. For the sixteen bucks, it is not worth your time to mess with other stuff. Or at least not worth my time. In reply to turboswede: I like your idea much better than mine.

I did a squeeze test on a Gatorade bottle and if my car uses a "sucker" system, it will crush it. My has a hose connected to the oil pan and the hose connects to the pcv valve. The valve connects to the intake manifold and has another hose that goes to the valve cover.

I can get a really good picture of it tomorrow. What's the difference between a catch can and an oil separator? I've read performance magazines for years, and they never really wrote about this.

Easiest I have seen lately was a remote oil filter bracket with a diesel fuel filter screwed on. Any oil filter would have worked, but the fuel filter had a drain valve built in. I had such bad luck with the ebay knock off, if I were to install one again I would build from scratch. I have no idea what metal components they use but those ebay ones are heavy and flow poorly after you get it to stop leaking.

Thread I created a while ago on the same topic: on a dodge. I have nothing to add except that as a former Escort owner that car gives me a warm fuzzy feeling.

That's the theory, but in practice at least half of the oil fumes simply escape into the outside world. You could see a little smoke coming from the filter when the engine was running. If you do get one with a proper filter inside, it won't work well in a VTA configuration due to the restriction of the filter and the lack of "motivation" in the oil fumes.

Suck-through with good filtration is the best for your engine oil condition and the environment, but a little bit of oil fumes will still get into your intake. I designed and made something similar to the BMW one that is super effective at getting the oil out, until you fill the reservoir and start sucking the oil into the intake.

But I did some other things because I was removing so much oil from the crank case gases that it was filling the Poland springs bottle I was using as a reservoir in like 3 auto-x runs and then sucking a E36 M3 load into the intake. So I had to do this. If you are going to make a catch can with scrubbie material it MUST be pure copper, not stainless, not copper coated steel. So Chore Boy brand is your ticket. Some have a problematic vacuum-limiting diaphragm attached, but others are just the separator; I've got one around here somewhere - I think it's for an E39 M5 - that's nice and small, and could easily fit somewhere in most engine bays.

Not too expensive either. I'm considering adapting it for use in my Nicely made and with a drain if you're inclined to make it nice and neat by plumbing the liquid oil back to the pan. Prices can probably be found lower than on that site with a little looking. That is a nice one. I did this for a different car using a water separator for compressed air.

It works great. It is full at each oil change. It has some oil and also water in it. The water comes from the condensation when a motor heats up.

It has kept my intake manifold completely clean for over 50k miles. It was an easy mod and cheap the way I did it. This is the intake port on a motor with 12k miles on it without a catch can. Originally Posted by SethuM. There any recommendations for an ebay catch can? At this point I'm thinking I can go from the top vent and just run it to the oil catch can and empty the catch can at oil changes.

This is the one I bought for my m3. I did the m50 manifold and eliminated the cyclone separator. I left the filter on top. This can has a plug in the bottom. I installed a barbed fitting in the bottom that drains to the hose port on the obd2 dipstick tube. It's a little hard to see but look at the pics of those barbed fittings. You'll see one end can be fitted with a small tube.

I cut a short piece of tube and attached it then inserted that into the bottom of the can. This allows water to separate from the oil in the bottom of the can. Works great.