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914World.com _ 914World Garage _ Oil Filler Box.. Do all years have PCV?

Posted by: tod914 Nov 2 2004, 10:07 AM

Just put a new gasket under my oil filler box. I noticed that there is a small hole, but no pressure relief valve there on the bottom of the box. Car is a 75 2.0. Is it suppose to have one? The pet only shows one style which does.

Posted by: SLITS Nov 2 2004, 10:45 AM

Early cars had a breather with baffle in the oil filler assembly (can) - later cars had the PCV valve in the top with a hole in the bottom of the "can".

Posted by: tod914 Nov 2 2004, 10:53 AM

Hmmm, this has the baffle system, with a small hole on the bottom. There is no place on top where a PCV can go in. Now I'm baffled

Posted by: SLITS Nov 2 2004, 11:25 AM

I've got both kinds and will post images as soon as I can. Will edit this post with them.

Posted by: RustyWa Nov 2 2004, 02:17 PM

Later cars had no PCV. The hose runs to the air cleaner, above the throttle plate.

Posted by: tod914 Nov 2 2004, 02:19 PM

Ok thanks guys. Just wanted to make sure.

Posted by: SLITS Nov 2 2004, 06:04 PM

Late style (not sure 'bout '75 / '76)

IPB Image

early style (no pcv)

Posted by: HarveyH Nov 2 2004, 06:22 PM

The late style with the PCV is used on my 74 2 liter. I don't know about Porsche, but my 1969 Triumph GT6 (bought new) had a PCV (California car, but I don't think Cali had separate emission standards that early).
Harvey