Tweaking my old oil catch can - Ford Powerstroke Diesel Forum
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Old 04-08-2014, 08:00 PM
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Tweaking my old oil catch can

I've been doing some reading on some Tahoe forums (my wife's ride) and did some research on a catch can that is popluar among the GM guys for the gassers. With that only needing 3/8" ID connections it's pretty easy to just buy one that meets that need. Anyways I talked to the guy that makes them and he said he only uses scotch brite pads for a filter media, and seeing how much oil those guys are pulling with those cans with just two layers of filter it made me want to redo my catch can that I yanked off of my truck since it wasn't doing jack.

Here is what I started with: open system at the rear of my truck


Two things that I wanted to change with this setup. One being the filtering was with this stainless pot scrubbers. I thought it was probleby be too course for filtering, which I believe was one problem with not good filtering


And also, looking down from the top of the can, I only had enough room to install a 90deg copper fitting (without cutting the can in two) and not install a pipe to have the vent gas to start at the bottom of the can. If that makes sense, lol. I dont think it let the oily air flow through 100% of the filter


First I decided to cut the can so I could install a pipe in which the air would start at the bottom of the can forcing the dirty air to flow through all of the filter. This seemed to be how most of the actual catch cans are designed


Then I cut out the scotch pads to fit snugly inside the can and around my tube





I'm way more pleased with how it'll operate now. Now....I made myself two ways to finish it. An open or a closed system based upon some operating factors.


If I do a closed like this Id have to paint the PVC pipe flat black


I'm going to get the engine up to operating temp and then hook it up laying over the engine bay to see how it works in an open system. I'll just install the little breather filter on the top as I did before and just see if it elimated the haze. If it does, then I'll just run it out back and install it on the frame as before. I removed it from last time because it made my truck look like some early 80s beater, didn't like that. The smell didn't bother me too much. I also my install it next to my intercooler for ease of draining by just popping the hood etc. if I do that I may do a closed system so that I'm not following the smell in the summer time with the windows down and the stink blowing in the truck. Anyways, I got the bug in my butt to finally do something with this can that has been sitting on my bench in the garage.
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