1998 oil catch can install help
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,730
Likes: 4
From: Delray Beach Florida
1998 oil catch can install help
howdy all. I just got my oil catch can from CCA today, Merry christmas to me. I was reading there install instructions and at the bottom it describeds how todo it on a ls1 older then 2003. explaining that the hose needed to attach to the pcv. So i went on the forum here to try and find a few pic of other installs, and only one had their hose attached the the PCV. the pvc was really close to the end of the motor.
1.My PCV is in the center on the motor, under the fuel rail. Is that where its suppost to be?
2. Should i replace the PCV valve since its never been changed, while i'm at it?
1.My PCV is in the center on the motor, under the fuel rail. Is that where its suppost to be?
2. Should i replace the PCV valve since its never been changed, while i'm at it?
Last edited by Tikiman12; Dec 21, 2008 at 03:08 PM.
Melting Slicks
Joined: Apr 2007
Posts: 2,167
Likes: 55
From: Kempner TX
St. Jude Donor '08-'09
Ive had my oil catch can also for about 2 months and havent put it on yet either because the instructions were so unclear. I have looked for pics here but didnt find any. Im thinking I have to take the hose off the back of the manifold (pain in the ***!!!) and run it from there to the cath can and then from the PCV to the catch can but I have no clue. CCA really needs better instructions for the older cars.
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
Its simple, guys. I have 2 2002's - one with the stock PCV setup and one with the Z06 conversion. Both have a catch can which are similarly hooked up.
The stock setup has the lower hose hooked to the intake manifold just behind the TB while the upper hose goes to the PCV valve. The PCV valve is still connected to the PCV hoses coming from the valve covers. Here's what that setup looks like.
So, disconnect the hose that goes from the PCV valve to the intake manifold and attach the bottom catch can hose to that port on the intake manifold. Attach the upper hose from the catch can to the now-open end of the PCV valve that was previously attached to the hose going to the intake. What you're doing is putting the catch can in between the PCV valve and intake manifold.
The stock setup has the lower hose hooked to the intake manifold just behind the TB while the upper hose goes to the PCV valve. The PCV valve is still connected to the PCV hoses coming from the valve covers. Here's what that setup looks like.
So, disconnect the hose that goes from the PCV valve to the intake manifold and attach the bottom catch can hose to that port on the intake manifold. Attach the upper hose from the catch can to the now-open end of the PCV valve that was previously attached to the hose going to the intake. What you're doing is putting the catch can in between the PCV valve and intake manifold.
Thread Starter
Drifting
Joined: Jun 2006
Posts: 1,730
Likes: 4
From: Delray Beach Florida
see thats what i thought, but my PCV is way in the middle of that line. yours is located really close to the end. so mine is very difficult to get to. is this something that was done by GM or was this a replacment that was done by the previous owner.
also should i replace the PCV?
also should i replace the PCV?
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
There is a new, supposedly more effective PCV valve GM put out - you could try that one. As far as connecting to the valve, you don't have to connect directly to the valve itself. It would be fine if you connected the catch can upper hose to the hose that leads to the valve closer to the front of the engine where mine is hooked up using a double-ended barbed hose connector. The important thing is that it's connected properly.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
see thats what i thought, but my PCV is way in the middle of that line. yours is located really close to the end. so mine is very difficult to get to. is this something that was done by GM or was this a replacment that was done by the previous owner.
also should i replace the PCV?
also should i replace the PCV?
Generally, the PCV valve should be replaced when the sparkplugs are changed. I changed my PCV valve at 35,000 miles, but the original was still good. Regarding placement of catch cans: I am a big advocate of encouraging condensation and coalescense of airborn liquids via differential temperatures. Blowby gas temps can reach 170+ degrees F. and if the can itself is close to a major heat-generating source, it is almost guaranteed that some of the airborn oil will get past the steel mesh in the can and make its way into the intake.
I mounted my filter in a cooler area of the engine bay, forcing the hot blowby gasses to pass through a cooler can and then run uphill to the intake. Of course it helps that cold, outside air is directed past my intake filter and into the engine bay to help keep my "can" cool. The other thing to remember is that there is also some water and fuel in the gases passing through the PCV valve.
I understand that convenience of attachment is the prime reason for mounting a catch near the engine and that's the only space you have, you might want to consider using a non-metallic bracket that can withstand the heat (like FR4 fiberglass/epoxy).
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Racer
Joined: May 2007
Posts: 373
Likes: 20
From: Romeoville IL
yes me too. Totally different setup than the LS6 or Ls1. Can anybody show us a picture of the setup with the Fast 90 with a LS2tb?