ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 05-19-2019   #41
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

Quote:
Originally Posted by XfireZ51 View Post
Karl,

I have the exact same one (except its polished aluminum) and its installed in the front left of the car, where the AIR system was located. Do u have any steel wool in there, or are u simply using gravity to have oil drop out of suspension?
I am using a combination of steel wool tucked under home Depot aluminum gutter guard. I use the gutter guard to keep the steel wool packed in.

I also made the inlet line about 2 inches longer and it points to the catch can wall...if that makes any sense.
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*

Last edited by Karl; 05-19-2019 at 10:53 PM.
Karl is offline   Reply With Quote
Old 05-19-2019   #42
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

This is the gutter guard I use.

https://www.lowes.com/pd/amerimax-al...yABEgLA2PD_BwE
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Old 05-19-2019   #43
XfireZ51
 
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,700
Default Re: About a tank of gas later my oil catch can....

Quote:
Originally Posted by Karl View Post
Ok, that looks like something I could do. My catchcan is attached to the frame rail by the horn assembly. Its tipped at about a 40* angle so the headlamp buckets can rotate freely. Have been using it for a number of years now, and the plenum still gets oil in it altho never as much as previously. As I said, I am using it as an air oil separator. Do u think that since I have no steel wool in there, that oil may still be getting sucked into plenum?
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman
Former ZR-1 Registry - BOD
1972 Corvette 4speed base Coupe SOLD long time ago
1984 Corvette Z-51/4+3 SOLD
1992 Corvette ZR-1 Aqua/Gray #474 SOLD
1992 Corvette ZR-1 Black Rose/Cognac #458
2014 Honda VFR Interceptor DX
XfireZ51 is offline   Reply With Quote
Old 05-19-2019   #44
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

Odds are probably yes there is still oil getting past the catch can. It is just a hollow shell. And with all the air and turbulence the oil needs to be separated some how.

My '92 had the catch can mounted under the driver headlight but decided to move it low after doing some homework.

I will be at Marc's BBQ this upcoming weekend so you can see the car there and chat more about it.
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Old 05-19-2019   #45
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

See post #21 for the modified catch can inlet

http://zr1.net/forum/showthread.php?t=29346&page=3
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Old 05-19-2019   #46
Ccmano
 
Ccmano's Avatar
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
Default Re: About a tank of gas later my oil catch can....

Haibecks theory is that very little oil comes from the PCV system into the plenum. This is what he thinks is going on.

“I noticed that the inside of the plenum was always soaked with oil. In fact several drops of oil can usually be poured out of a typical LT5 plenum when it is removed from the engine for service. I tried to reduce the oil consumption by installing a two gallon accumulator tank with a coalescing filter on the vacuum line where the PCV tube connects to the plenum. The accumulator would collect only about 10% of the oil that the engine lost. I believe that this proves that the oil loss problem is not through the PCV system. If oil catch cans are installed on the crankcase vent tubes that connect to the air horn, they do not collect oil. I believe that the oil gets past the piston rings and moves up the intake air ports via reversion. My theory is that the rings loose control of the oil through some combination of poor cylinder bore geometry and piston ring flutter.”

I tend to agree. My catch can only picked up a couple ounces in the last 1000 miles and yet when I pulled the plenum to change injectors recently there was oil in the plenum.
H
__________________
90'ZR-1 #1461 Red/Black
Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold
08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold
05 C6 Z51 Red/Black Sold
90'ZR-1 #1723 Black/Gray Sold but not forgotten
91' Z51 L98 White Vert. My First, you always remember your first. Sold.
Ccmano is offline   Reply With Quote
Old 05-19-2019   #47
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

Gravity is your friend. I believe Tony D from Alabama inspired me with his catch can installation.
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Old 05-19-2019   #48
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 981
Default Re: About a tank of gas later my oil catch can....

Here is the video with the captured contents. It should be about 3x what's in there since I spilled most of it on the garage floor.

https://youtu.be/4jeGoitdqcU
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:38 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020