Upgrading an Oil Air Separator!

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Intro: Upgrading an Oil Air Separator!

I just received my oil air separator from Amazon.com! For 36usd it's a good price however it is just an empty can with no internal baffling to force oil droplets to condense!

Read on for how I fixed it!

STEP 1: Opening and Inspecting!

Using an Allen key I removed the 6 screws. The top has 2 ports so close together that intake will quickly be sucked into the outlet!

The gasket on the cover is very minimal. The bottom of the can has a drain hole. There is a level sight along the outside.

STEP 2: Extending the Intake.

I wanted the blow by gases to reach the bottom of the can. I used a spare length of copper tubing to achieve this.

STEP 3: Baffling.

Using a piece of sponge I slipped in over the copper tubing. This sponge will force the oil droplets to condense.

STEP 4: Reassembly!

I left the sponge near the top so the bottom of the can will collect the oil. I marked which was in and out on the ports.

STEP 5: Drain Valve.

The kit came with a drain bolt but I want an easier means to release the trapped oil. With a nipple, washer and spare ball valve I made the drain valve!

STEP 6: Completion!

There it is. My upgraded oil air separator. Took me only half an hour. My next instructable will be it's installation! Stay tuned!

3 Comments

Dude, the sponge will be attacked by the oil, use stainless steel pot scrubbers to make an indestructible filter. (I did and it works great).

Please let us know how the sponge material holds up. I did something similar with a metal scrubby thing...it started breaking down... ditched that and ended up with a series of staggered metal discs.

So far the sponge is holding up great. The separator is trapping the oil as intended.