Valve Cover Breathers: What Works?
#1
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Valve Cover Breathers: What Works?
Ok, currently I have the push in K&N breathers on my valve covers for my fresh 540. One on front of odd bank and one in back of even bank. After running last year I would get a little mist of oily mist from my rear even bank breather after pushing it hard. Not enough to signify issues but enough to make a bit of a mess in the bilge. I imagine this is a run of the mill issue after reading threads about it from searching but I couldn't come up with a definitive answer. My K&N breathers are un-baffled and there is no baffle under the valve covers except the stud girdles.
So here is the question: What do I replace my K&N breathers with, the nice looking tall bolt-on aluminum breathers or do I go to a catch can breather system? What has eliminated the issue for you guys as I have read the K&N breathers are notorious for this issue?
So here is the question: What do I replace my K&N breathers with, the nice looking tall bolt-on aluminum breathers or do I go to a catch can breather system? What has eliminated the issue for you guys as I have read the K&N breathers are notorious for this issue?
#5
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So there is no tube going from breather up to flame arrestor? Or pcv system? Before pcv cars used a metal tube venting crankcase down to the road. You must have some way to get crank vent back into intake air. You also get oil smell at low throttle-speed with your current setup.
#6
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So there is no tube going from breather up to flame arrestor? Or pcv system? Before pcv cars used a metal tube venting crankcase down to the road. You must have some way to get crank vent back into intake air. You also get oil smell at low throttle-speed with your current setup.
#7
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I was tired of the mess on the valve covers on my Corvette, so I installed a catch can system on each valve cover. A way to improve on the catch can could be to route the vapors off the catch can up yo the spark arrestor
#9
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iTrader: (2)
Ok, currently I have the push in K&N breathers on my valve covers for my fresh 540. One on front of odd bank and one in back of even bank. After running last year I would get a little mist of oily mist from my rear even bank breather after pushing it hard. Not enough to signify issues but enough to make a bit of a mess in the bilge. I imagine this is a run of the mill issue after reading threads about it from searching but I couldn't come up with a definitive answer. My K&N breathers are un-baffled and there is no baffle under the valve covers except the stud girdles.
So here is the question: What do I replace my K&N breathers with, the nice looking tall bolt-on aluminum breathers or do I go to a catch can breather system? What has eliminated the issue for you guys as I have read the K&N breathers are notorious for this issue?
So here is the question: What do I replace my K&N breathers with, the nice looking tall bolt-on aluminum breathers or do I go to a catch can breather system? What has eliminated the issue for you guys as I have read the K&N breathers are notorious for this issue?
#10
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