Crankcase breahing... - ZR-1 Net Registry Forums

Toyvet1 · 01-22-2011

I was wondering some things about the oil in the IH subject. While having my top end apart to replace the housing cover gasket I saw how the system works better. So some people are concerned about the amount of oil getting into the pleunem. Would it work of you were to pack something like stainless steel wool padding in the breather hoses somehow? It would work like a baffle catching the oil but letting vapors flow . Question is how would you keep the packing in place. Has anyone ever tried this give thought to the pros and cons of it...

Aurora40 · 01-22-2011

That's basically what a catch can is. Several people (myself included) have installed them in the PCV system.

xlr8nflorida · 01-22-2011

Quote:

Originally Posted by Aurora40

That's basically what a catch can is. Several people (myself included) have installed them in the PCV system.

Pic?

xlr8nflorida · 01-22-2011

Quote:

Originally Posted by xlr8nflorida

Pic?

Disregard, saw it on other forum.

zr1don · 01-22-2011

To anyone who has a catchcan installed, what are your results? I had enough oil coming through the pcv system that there was oil pooled in the bottom of my intake plenum. I have installed a catchcan, but have not run it long enough to see what the results are.

tomtom72 · 01-23-2011

I think I'm the tail end charlie on installing a catch can so my report may not be valid.

I did mine in the middle of this summer and put about 2k on it. There is so little oil in it that I'm kind of amazed. Maybe 1/4 oz? Now I cheated with my catch can as i don't have a real one. The one I wanted to buy I couldn't get when my cash was ready.

The "can" I used is from an air compressor

so I may not be catching most of the oil that our system transports normally?

There isn't even enough oil in the can to use the can's drain to get what's collected out.

It obviously caught some oil, but did it catch all of it I can't say.

Tom

-=Jeff=- · 01-23-2011

I need to pull my plenum and check, but I know the catch can works and does catch oil, not sure how much though

A26B · 01-23-2011

Here's one that I think is ideally suited for the LT5.

http://www.accmachtech.com/catchcans.asp

They are available in black, red, blue & natural aluminum.

todesengel · 01-23-2011

Just to throw this out there, and you can flame away if you like.

I have been running my pcv on my big single turbo supra to the exhaust for years. it does create a nice vacuum, and burns quickly in the exhaust, if done correctly. I have just done this to my audi as well to cure the nastiness that accumulated on the valves. Catch cans will grab a lot out of the airstream, but i have always been suspect of not supplying vacuum to them, which would still lead to vapors making their way back.

IMHO if you want to do it correctly you will have to do one of two things;

1) to a catchcan with a vacuum source OTHER than the engine
2) route it into the exhaust via checkvalve

Moroso sells kits to do this and they are available at jegs, or summit for ~75.00

01-22-2011	#1
Toyvet1 Join Date: Dec 2007 Location: Bloomingdale, Il Posts: 330	Crankcase breahing... I was wondering some things about the oil in the IH subject. While having my top end apart to replace the housing cover gasket I saw how the system works better. So some people are concerned about the amount of oil getting into the pleunem. Would it work of you were to pack something like stainless steel wool padding in the breather hoses somehow? It would work like a baffle catching the oil but letting vapors flow . Question is how would you keep the packing in place. Has anyone ever tried this give thought to the pros and cons of it...

01-22-2011	#2
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,713	Re: Crankcase breahing... That's basically what a catch can is. Several people (myself included) have installed them in the PCV system. __________________ Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img]

01-22-2011	#5
zr1don Join Date: Jan 2006 Location: Temecula, CA Posts: 92	Re: Crankcase breahing... To anyone who has a catchcan installed, what are your results? I had enough oil coming through the pcv system that there was oil pooled in the bottom of my intake plenum. I have installed a catchcan, but have not run it long enough to see what the results are.

01-23-2011	#6
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Crankcase breahing... I think I'm the tail end charlie on installing a catch can so my report may not be valid. I did mine in the middle of this summer and put about 2k on it. There is so little oil in it that I'm kind of amazed. Maybe 1/4 oz? Now I cheated with my catch can as i don't have a real one. The one I wanted to buy I couldn't get when my cash was ready. The "can" I used is from an air compressor so I may not be catching most of the oil that our system transports normally? There isn't even enough oil in the can to use the can's drain to get what's collected out. It obviously caught some oil, but did it catch all of it I can't say. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

01-23-2011	#7
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Crankcase breahing... I need to pull my plenum and check, but I know the catch can works and does catch oil, not sure how much though __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

01-23-2011	#8
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Crankcase breahing... Here's one that I think is ideally suited for the LT5. http://www.accmachtech.com/catchcans.asp They are available in black, red, blue & natural aluminum. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

01-23-2011	#9
todesengel Join Date: Apr 2010 Location: O'Fallon, Mo Posts: 738	Re: Crankcase breahing... Just to throw this out there, and you can flame away if you like. I have been running my pcv on my big single turbo supra to the exhaust for years. it does create a nice vacuum, and burns quickly in the exhaust, if done correctly. I have just done this to my audi as well to cure the nastiness that accumulated on the valves. Catch cans will grab a lot out of the airstream, but i have always been suspect of not supplying vacuum to them, which would still lead to vapors making their way back. IMHO if you want to do it correctly you will have to do one of two things; 1) to a catchcan with a vacuum source OTHER than the engine 2) route it into the exhaust via checkvalve Moroso sells kits to do this and they are available at jegs, or summit for ~75.00