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OIL LOSS/PCV UPDATE-Att. jmars

posted by  Brian S on  Tue Mar 23 10:13 CST 2004
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I took a look at the article. Looks like the PCV system on the engine described works a little differently than the one on our turbo red blocks: with those, air from the intake is actually routed into the crank case, which would make constant vacuum even more essential.

The concern in our case is just to keep pressurized air (under boost conditions) from travelling out the manifold nipple, up the skinny vac line, through the Y-fitting, into the oil separator and thence the crank case. One element in the discussion is the fact that 240 Turbos don't even have the skinny vac line... a one-way valve in the line is sort of compromise between that setup, and unrestricted, 2-way flow.

I have no idea of the intended application of the Deutsch valve... probably not for a turbo car. I plan on inspecting it on a regular basis, but I'd love to find a proven component (that doesn't cost $75+) to use. The Deutsch valve (at least the one I got) does not completely restrict flow in the "wrong" direction, but limits it pretty well compared to flow in the "right" direction.

I'm glad to see there are a bunch of people thinking about this & experimenting...

- Brian






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