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Old 06-19-2017, 12:08 AM
Ladysmith Bob's Avatar
Ladysmith Bob Ladysmith Bob is offline
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Default Old time drag racing cure with a modern look

An old style cure.
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Old 06-19-2017, 01:30 AM
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I love it, Bob. This device reminds me of a coalescing air filter. Painters rely on them to extract water from their air supply. In this case we're extracting oil solids from blowby gasses.

The grocery store sells stainless steel pot scrubbers. They aren't sharp, they don't shed and they don't rust. I was thinking of using one of those, shoved down the oil filler tube. The non-vented push-on cap simply holds a rubber grommet for a PCV valve.

Really, all we want it to do is catch liquid oil and send it back down to the oil pan. Those pot scrubbers are coarse enough to allow fresh oil to pass (albeit slowly) when the oil is changed. Or, the curly-metal scrubber can be pulled out and washed, then re-inserted. Under normal use, gasses can pass right through.

PCV valve rubber grommets are sold everywhere. They require a 1-1/4" outside hole. The inside diameter is typically 1" for the valve. It's just a thought... - Dave
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Old 06-19-2017, 08:57 AM
Joe Johnston Joe Johnston is offline
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lots of guys with GM V-6's are using a similar "catch can" to keep oil from contaminating the mas air flow sensors in the intake air passage. GM just used a recess in the plastic to hold any condensed oil.

The Stainless scrubber is what I used in the valley pan of my Y-Block many years ago and still is as good as ever. Stainless does not deteriorate in that environment and is better than original steel.
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