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> Oil Catch Can Options
kupcar
post Dec 16 2015, 10:28 AM
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My 914-6 conversion probably needs some sort of catch can. The previous owner has the crankcase vented to the oil tank. The vent from the tank simply has a sponge zip tied to the opening. It seems to work ok and I've never had a issue with anything but there has to be a better alternative. Something simple. Do most use a catch can, or can a small mesh filter be used? I cleaned a bit of oil residue off the motor when I was detailing the car. My guess is it came from venting into the engine compartment. Now that it looks pretty, I'd like to keep it that way. Any suggestions? Thanks.
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SirAndy
post Dec 16 2015, 12:26 PM
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I used an old Gatorade bottle with a few holes drill on top to relieve pressure. Works great for collecting the oil vapors and moisture.

I turned the holes in the bottle to face the air filter so any vapors escaping get burnt. (IMG:style_emoticons/default/biggrin.gif)

(IMG:http://www.914world.com/bbs2/uploads/post-179-1255294222.jpg)
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stugray
post Dec 16 2015, 01:13 PM
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At the track I am often amazed how many can put the most redneck oil catch can on an otherwise beautiful car.

Yours above is actually nice compared to some :-)

I think it's kind of like a redneck badge of honor having a Budweiser can ziptied to your vintage racecar.....
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Andyrew
post Dec 16 2015, 01:17 PM
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This is the one I am going to use.

Gonna fill it with stainless steel wool.

http://www.ebay.com/itm/201249093731?_trks...K%3AMEBIDX%3AIT
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boxsterfan
post Dec 16 2015, 01:20 PM
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What's the part# on that gatorade bottle? (IMG:style_emoticons/default/biggrin.gif)
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SirAndy
post Dec 16 2015, 01:40 PM
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QUOTE(boxsterfan @ Dec 16 2015, 11:20 AM) *
What's the part# on that gatorade bottle? (IMG:style_emoticons/default/biggrin.gif)

Kinda hard to read in the pic but i think it starts with GAT ...
(IMG:style_emoticons/default/shades.gif)
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Jeffs9146
post Dec 16 2015, 04:58 PM
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Mine

(IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/beerchug.gif)


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kupcar
post Dec 16 2015, 05:18 PM
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A+ for creativity across the board. Has anyone ever puked up enough oil to catch anything? I'm tempted to stick a k&n crankcase breather on the vent opening.
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r_towle
post Dec 16 2015, 05:22 PM
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(IMG:style_emoticons/default/smile.gif) Andy is a redneck......hahahaha
Not something I would say....
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SirAndy
post Dec 16 2015, 05:44 PM
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QUOTE(kupcar @ Dec 16 2015, 03:18 PM) *
Has anyone ever puked up enough oil to catch anything?

Absolutely!

I have to clean out the catch-can every other week and it's usually pretty full after an autocross.
(IMG:style_emoticons/default/driving.gif)
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SirAndy
post Dec 16 2015, 05:45 PM
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QUOTE(r_towle @ Dec 16 2015, 03:22 PM) *
(IMG:style_emoticons/default/smile.gif) Andy is a redneck......hahahaha
Not something I would say....

I've heard worse ...
(IMG:style_emoticons/default/biggrin.gif)
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patssle
post Dec 16 2015, 06:08 PM
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Running Gatorade here too. Andy was my inspiration.
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Jeffs9146
post Dec 16 2015, 06:15 PM
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QUOTE(kupcar @ Dec 16 2015, 03:18 PM) *

A+ for creativity across the board. Has anyone ever puked up enough oil to catch anything? I'm tempted to stick a k&n crankcase breather on the vent opening.


You can see the mess around my catch bottle when it blew off before I drilled a vent hole. It can be 1/4" to 1/2" a week depending on how hard you are driving it.
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mb911
post Dec 16 2015, 06:26 PM
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I made one for my last 6 .it was a piece of 2" aluminium tubing with a bottom welded on with a fitting on top for a small k&n filter with a hose fitting on the side.. I attached it to the fan housing opposite of the coil.. It worked great..

I should make a bunch of them
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TheCabinetmaker
post Dec 16 2015, 06:45 PM
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I had a carbed 4 for a while that used a small air compressor water separator. Clear cylinder with a petcock on the bottom for draining. Worked great and no oily residue in engine bay.
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11tenths
post Dec 16 2015, 08:01 PM
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If only the factory had put one under the battery tray...
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porschetub
post Dec 16 2015, 08:31 PM
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QUOTE(kupcar @ Dec 17 2015, 12:18 PM) *

A+ for creativity across the board. Has anyone ever puked up enough oil to catch anything? I'm tempted to stick a k&n crankcase breather on the vent opening.


I posted a the same thread on here recently ,some said the K&N will oil mist your engine bay,I researched and found that you need to buy a can that has the largest fitting possible to work,I bought a D1 boy racer 600ml unit with 15mm fittings,appears there not many much bigger.
I then acquired a silicone reducer to go from my PMS filler neck (24mm) to 15mm on catch can.
I haven't decided if I go to a breather in the top of the can or run a hose back to the block,the fitting is already tapped so that's an option .
I presume the case is in some point of vacuum so this should pull the separated fumes from the can ??,the tank breather works this way so all should be good.
I don't have the option to run into the intake and don't want to besides.
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porschetub
post Dec 16 2015, 10:01 PM
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QUOTE(The Cabinetmaker @ Dec 17 2015, 01:45 PM) *

I had a carbed 4 for a while that used a small air compressor water separator. Clear cylinder with a petcock on the bottom for draining. Worked great and no oily residue in engine bay.


yea that would work well as its designed for that,these are very effective,same principle different application....right.
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Downunderman
post Dec 17 2015, 12:42 AM
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I vented the catch tank on my 6 back into the bottom of the air cleaner so it avoided the filter and got sucked back into the motor.
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stugray
post Dec 17 2015, 12:44 AM
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here's mine for a 4:

(IMG:http://www.914world.com/bbs2/uploads_offsite/i366.photobucket.com-10819-1450334677.1.jpg)

The added white piece on the stock filler-neck/breather-box was to allow me to attach a very large dia hose and to point towards the drivers side.
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