02-19-2012, 05:59 PM | #1 |
RX CATCH CAN & BREATHER CAP PROBLEM - CAUSED OIL LEAK - BEWARE *HELP*
I have a RX catch can and the optional breather installed on my LS3. I was driving home tonight and started to smell burnt oil. All gages were normal. I was pretty close to home and stopped in the drive with the engine running. I thought I would check to see if the breather/oil cap was on tight. I thought I might be smelling the gases escaping. It felt tight so I thought I would open it and it almost shot out of my hand. It was pressurized big time. I am not sure why the engine would be building so much pressure, shouldn't it be passing throughout the catch can? So I started looking around and found that oil was leaking out between the transmission and engine (from the pressure I assume). Some of that leaking oil was hitting the exhaust, that is why I was smelling burnt oil. I could feel the check ball moving when I shook the breather cap. I thought it was just suppose to let air in. After I put it back on I could see it venting gases.
So any suggestions? What could be leaking in that spot? Crank seal? Do you think it is bad now. After relieving the pressure there was no more oil leaking. What could cause this problem? Bad valve on the catch can?
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02-19-2012, 06:10 PM | #2 |
Drives: 2010 Camaro SS LS3 Join Date: Sep 2010
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I doubt it was the breather. are you sure you had the hoses on the can on the right fittings?
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02-19-2012, 06:14 PM | #3 | |
knows 2 facts about ducks
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Quote:
But yea, your thread title is very misleading. |
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02-19-2012, 06:16 PM | #4 | |
... well, not yet.
Drives: 2012 Chevy Silverado ZL1 Join Date: Apr 2011
Location: NE Ohio
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Quote:
This is most likely the issue. Can you post some pics of your install? |
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02-19-2012, 06:16 PM | #5 | |
knows 2 facts about ducks
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Quote:
Specifically some pics of how you routed your hoses. |
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02-19-2012, 06:22 PM | #6 |
I got out the directions for the catch can and checked the hoses again. That was the first thing I thought of. The hoses are in the correct location. Also this catch can and breather cap has been installed on the car for almost year with no prior problems.
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02-19-2012, 06:23 PM | #7 |
I will post a picture in a few minutes.
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02-19-2012, 06:23 PM | #8 |
... well, not yet.
Drives: 2012 Chevy Silverado ZL1 Join Date: Apr 2011
Location: NE Ohio
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When was the last time you emptied it? When you did how much came out?
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02-19-2012, 06:26 PM | #9 |
I emptied it about a month ago I have hardly been driving it because of the winter. Not much came out. I also checked it when this problem happened, not much just a little condensation build up.
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02-19-2012, 06:29 PM | #10 |
knows 2 facts about ducks
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02-19-2012, 06:39 PM | #11 |
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02-19-2012, 06:40 PM | #12 |
I put some blue tape on one of the hoses. So do you think the seal is bad?
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02-19-2012, 06:52 PM | #13 |
knows 2 facts about ducks
Drives: ...and they're both wrong Join Date: Aug 2009
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I can't really tell from the first picture. But the hose with blue tape on it, is it connected to the intake? The intake is the higher one, or should be anyway.
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02-19-2012, 06:55 PM | #14 |
The blue tape hose is connected to the intake, the higher one. It also has vacuum, as it should.
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