HMT Catch Can
 

Some of you may know my last motor was destroyed by excess crankcase pressure and all the seals on my motor basically started to piss oil. To prevent this from happening on the new motor I have fabbed myself a custom catch can. Using an AC accumulator from a GM car designed to absorb moisture I rigged up my setup. One line goes to the breather box on the back of the block where the stock PCV line goes. The PCV is eliminated and that line goes to the inlet of the accumulator. Then the outlet goes to my turbo intake tube to pull a vacuum on the crankcase relieving all the excess pressure. Comments and criticism is welcome.

https://img.photobucket.com/albums/v...atchcan001.jpg
Catch can hooked up
https://img.photobucket.com/albums/v...atchcan002.jpg
Line to pre-turbo intake tube
https://img.photobucket.com/albums/v...atchcan003.jpg

Re: HMT Catch Can
 

Wouldn't the vaccum suck in any oil or oil vapors that the motor passes?

Re: HMT Catch Can
 

That is what the can is for, hopefully it will absorb most of the crap and what is sucked into the charge pipe is just a little blow-by gas and what not.

Re: HMT Catch Can
 

can you draw up a primitive diagram? wouldn't having the hose going into the charge piping/external side of your tb not pull enough vacuum? i have mine going directly into my intake manifold to draw vacuum. maybe i'm just stupid. :P

Re: HMT Catch Can
 

That AC accumulator is not empty, there is decicant(sp) i there, I dont know if that would harm anyything but I thought you should know.

Re: HMT Catch Can
 

I will have my catch can done next week, I'll show you how a real catch can should look and work.

Re: HMT Catch Can
 

Yeah, the desicant will absorb crap, it won't get pulled out by the intake pipe if that's what your thinking. The reason I don't have it hooked up to the IM is because the IM under boost would push the gases back into the crankcase, or I was under that impression.

Re: HMT Catch Can
 

And now, a primitive diagram

Attachment 38178

Re: HMT Catch Can
 

Ya its in a bag, I cant see it hurting anything. Did you not run the valve cover to it also?

Re: HMT Catch Can
 

I've been toying with the idea of using an "Elements" energy drink can for my catch. I think it would work. Opinions?

Also, Is there a reason why people don't use the dip stick tube as a vent location?