PCV Oil Catch Can on N/A 5.3 fills FAST...
11-17-2011, 04:44 PM
#51
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I do not know if I even have that option, as I have a 2005. The fixed orifice seems to be pressed in there. When I removed the hose, the metal tube left behind does not seem to want to come out.
Did you install the catch can because of smoke at start up? Did it fix it?
Did you install the catch can because of smoke at start up? Did it fix it?
I think the catch can is a good thing as a back-up, however it isnt a real fix since you will have to drainthis and still have oil consumption even though the engine isnt burning it... that has got to be something that can be done..
11-19-2011, 10:40 AM
#52
I do not know if I even have that option, as I have a 2005. The fixed orifice seems to be pressed in there. When I removed the hose, the metal tube left behind does not seem to want to come out.
Did you install the catch can because of smoke at start up? Did it fix it?
Did you install the catch can because of smoke at start up? Did it fix it?
11-19-2011, 11:04 AM
#53
Just as a side note:
Im glad to see people using the AMW catch cans! They work quite well and are just big enough to do the job for most people under the 500 mark. Making those things is incredibly easy, and nearly every machine at AMW is CNC controlled- I think they only have 2 manual mills and 6 manual lathes.
With the LS being as easy as it is to pull the heads off of, im suprised people don't just yank the heads and install new viton seals. It really doesn't take more than a weekend to accomplish.
You could even do it with the heads on the engine so long as you have it on the compression stroke and have a spark plug adapter to bring compressed air in to hold up the valves. Heads on, your looking at 12 hours labor to do all the seals.
Im glad to see people using the AMW catch cans! They work quite well and are just big enough to do the job for most people under the 500 mark. Making those things is incredibly easy, and nearly every machine at AMW is CNC controlled- I think they only have 2 manual mills and 6 manual lathes.
With the LS being as easy as it is to pull the heads off of, im suprised people don't just yank the heads and install new viton seals. It really doesn't take more than a weekend to accomplish.
You could even do it with the heads on the engine so long as you have it on the compression stroke and have a spark plug adapter to bring compressed air in to hold up the valves. Heads on, your looking at 12 hours labor to do all the seals.
11-20-2011, 07:18 AM
#54
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Correct, and it may be, but I had this problem last year, and it went away for 8-9 months and now it has come back, so I do not think valve seals fix themselves and then go bad again. I guess weirder things have happened, but this leads me to believe it is probably not the valve seals.
11-20-2011, 10:46 PM
#55
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id check out that slow coolant loss issue... im fairly certain its for 03-04 year models, with 706 heads and the castech (little battery) logo under the rocker stand.
11-21-2011, 03:08 AM
#56
Just as a follow-up, I have not had a chance to do a compression test yet, but I did get a chance to change the oil. Went from full synthetic 5w-30 to MaxLife synthetic blend 10w-40 (I know the owners manual says not to use it, but I have 150k+ and I'm pretty sure its no longer within factory tolerances) and my oil consumption was cut dramatically. Now after 100 miles my catch can only fills about 1/4 of the way...still way too much, but a heck of a lot better than overflowing after 100 miles.
02-14-2012, 02:52 PM
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Hey guys, I just wanted to come back and update this thread. I had a knock sensor go out and while replacing those, along with the wiring harness, I also replaced the intake gaskets & oil pressure sensor. All this was done late last year and I am not longer having any oil usage symptoms and the catch can is filling very little. No more smoke at start-up either and the motor is running like a champ. I am also back to running Mobil1 5w-30 and the motor just ticked over 185k miles...
Last edited by BMRisko; 02-14-2012 at 02:59 PM.
05-12-2017, 04:23 PM
#60
Launching!
Hey guys, I just wanted to come back and update this thread. I had a knock sensor go out and while replacing those, along with the wiring harness, I also replaced the intake gaskets & oil pressure sensor. All this was done late last year and I am not longer having any oil usage symptoms and the catch can is filling very little. No more smoke at start-up either and the motor is running like a champ. I am also back to running Mobil1 5w-30 and the motor just ticked over 185k miles...
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