ive been thinking on making my own oil catch can... been looking into diff options and doing some research... couple of days ago while surfing around i got stuck on stupid looking at a pic... when all of the sudden i looked at the power steering reservoir and came with the idea of turning it on to a oil catch can...

most of the PS reservoirs come with some sort of filters inside to prevent the fluid to be contaminated .... so i went to my local junk yard and i got this reservoir... pretty simple .... (forgot wut car it came out of)

my questions are ... would the reservoir hold vacum?? would the fliter work trapping oil vapors?? would this work at all?? any inputs and comments are welcome

 

It should be strong enough to hold vacuum. If the top doesn't seal tight enough you can always use RTV or JB-Weld.

Hard to say about the filter acting as baffling. I would just cut it open, use my own baffling, then weld it shut again.