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HowTo: DIY Catch Can Install |
| Last updated: 4/09/2008 |
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The PCV system in our car dumps all the "catch" into the intake.
Uh no thanks, it's a frikken mess when you pull that breather thing off.
I only wish I did this sooner.... Anyway....
So the key to adding a catch can to the 1.8t system is that you need to make
sure there is still vacuum involved by attaching the catch can to the intake system
just like the factory one is. Otherwise you aren't drawing pressure out of the block
and crankcase which probably isn't that good of an idea.
Equipment:
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Husky Mini General Purpose Filter (USA SKU 401-910 CAN SKU 131-688)
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2 x 1/4" extender (UPC 4556461361)
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2 x Husky 1/2" NPT Male to 1/4" NPT Female Reducer (USA SKU 368-081 CAN SKU 160-641)
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1"adjustable hose clamps
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Zip ties
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Permatex Thread Sealant w/ Teflon
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Teflon tape
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3/4" tubing (eh get about 6 feet and keep the extra for something else)
Tools:
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Screwdriver
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Something to cut the zip ties and tubing
Installation:
This install was mostly about finding a way to route the line, I wouldn't recommend something with a
thin OD like the stuff I used because it kept crimping which is bad when you want to draw a vacuum....
Picture of some of the parts from Home Depot:
OH NO A WARNING. Which we will ignore...
Cut off the filter so that it doesn't clog but leave some of it (Use a hack saw or something similar)
After putting a bit of thread seal on the threads attach the 1/4" to 1/2" NPT reducer.
Screw the 1/4" end of the attachment into the filter.
Now put the catch back on and it's complete.
Original system that dumps into the intake.
Attach the extender, and run the line around the breather and under the intake
which is where we are going to put the catch can.
You can see where I've "hung" the catch. This area has a lot of room to reach
in to unscrew the catch and dump it out, and I used the clamps to secure the
assembly using zip ties.
I ran the second line around and into the breather to complete the loop.
So the goal here was cheap, reversable and using the stock lines that a lot of us
don't have time to rerun even though we want a catch can system. I think you could
make it look cleaner with braided line or something that won't crimp like the stuff
I had but you get the picture, it doesn't really matter where you run the catch can
as long as you have a closed vacuum loop attached to the intake! I wouldn't recommend
runing a huge long line but it honestly probably doesn't matter that much.
Enjoy!
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