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 Post subject: Mishimoto Oil Catch Can
PostPosted: Tue Aug 21, 2012 3:17 am 
First Gear
Joined: Wed Aug 04, 2010 2:33 pm
Posts: 52
Location: Connecticut
After noticing some oil in my intercooler, charge pipe and PCV lines over the last year, I thought an oil catch can would be a good addition to my setup. I looked at what some WRX guys run and found some nice Subaru specific parts from Crawford and Grimmspeed. I didn't want to spend more than $100 so I looked at some more universal fit parts.

I went with Mishimoto part number MMOCC-RB for a few reasons.
1. I liked the size and black finish.
2. The top and bottom caps can be taken off in case I want to thoroughly clean it or change media.
3. The Inlet and Outlet fittings thread on and seem pretty standard so I could potentially find different sizes so I don't need adapters/reducers.
4. The machining and quality looked good

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Once the part arrived I decided to take some pictures and wound up taking it apart.

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Stickers always sweeten the deal for me

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I wanted to pop the top off to see what kind of baffling setup was in use. I couldn't find any good pictures of one disassembled online.

The inlet and outlet are basically side by side.

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The main chamber had nothing inside, I was definitely expecting some kind of baffling or media. Will this be effective? There were some machined slots along the inside perimeter near the ends, which made me think maybe some components are missing from the inside. Any thoughts? The only other reason for these I can think of is if the body of the part was originally designed for some other use and is adapted into catch can. At work we have some pneumatic cylinders that look very similar.

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I may put some stainless steel scrubbing pads inside to gain a little surface area. I figure I may as well try it for a little while and see if it actually collects any oil.

_________________
1994 Wagon - Turbo swapped DD
EJ22T, 3'' TBE, Apexi Intake, Spec Clutch, H&R's, Robtune, VF39, 550's, Walbro, V2 STI Top Mount, AEM Wideband


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 Post subject: Re: Mishimoto Oil Catch Can
PostPosted: Tue Aug 21, 2012 3:56 am 
Fifth Gear
Joined: Fri Jun 20, 2008 8:17 am
Posts: 6270
Location: Lakewood, Wa 98439
I feel like it would just suck any oil right thru the top nipples and not collect any oil.

_________________
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
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 Post subject: Re: Mishimoto Oil Catch Can
PostPosted: Tue Aug 21, 2012 5:47 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 27230
Location: Houston, Tx
Nice feedback on the catch can.

I'd suggest checking out my thread which has some decent info and what I decided to do with my catch can.

viewtopic.php?f=5&t=39620


You can try the SS scrubbing pads to see if that makes any difference. If you could provide some sort of tubing that would direct the vapors into the pads/mesh that would likely make it more effective. That's always been somewhat of an issue having the inlet & outlet holes right next to each other.

Other thing to note, I would recommend replacing the white Teflon tape on there with yellow Teflon tape that is rated for petroleum. The white tape will degrade over time in the presence of oil. Here's some pics of the tape.

viewtopic.php?f=5&p=358047#p358047

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


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 Post subject: Re: Mishimoto Oil Catch Can
PostPosted: Thu Aug 30, 2012 10:20 pm 
Fourth Gear
Joined: Sun Jun 10, 2007 4:35 am
Posts: 1746
Location: Arkansas
That looks so well made its ashame its all hollow. I might pick one up so I can add my own media to it.

_________________
93 Touring Wagon (EJ20G 5spd Swap) -- Finally back and running strong as ever!

05 Outback 2.5XT 5spd -- Now the wife can have her SUV and get in on the turbo Legacy goodness at the same time.


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 Post subject: Re: Mishimoto Oil Catch Can
PostPosted: Fri Aug 31, 2012 2:35 pm 
First Gear
Joined: Wed Aug 04, 2010 2:33 pm
Posts: 52
Location: Connecticut
Yea it's a real nice looking part, I don't think it would be too hard to modify it into a nice performing part. There's lots of screen/mesh options out there that are easy enough to cut down and fit inside, the tougher part is directing crankcase fumes into the bottom of the can.

I might try to come up with a tube fitting that has nipples on both ends, so it can thread into the existing hole and you can run a tube on the inside into the bottom of the can. Hopefully there is something off the shelf out there, I always search McMaster Carr first, if not I may be able to come up with something on a lathe.

_________________
1994 Wagon - Turbo swapped DD
EJ22T, 3'' TBE, Apexi Intake, Spec Clutch, H&R's, Robtune, VF39, 550's, Walbro, V2 STI Top Mount, AEM Wideband


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