Proper PCV arrangment for a 2L, A little help please Options

[North Coast Jim]

Have a newly rebuilt 2L in the car with 40 IDF Weber carbs which is running fine except for a RMS dripping oil. We believe we installed it correctly and took careful steps assembling the rest of the engine/flywheel/clutch/transmission. We believe that the crankcase vent system is not working properly which is pressurizing the crankcase as RPM builds, thereby pushing oil out the RMS.

My oil fill assy has a 022115542 PCV assy in it and a solid oil fill cap. I took the valve out to see if it was working. When I blow into the bottom it is initially open. Increased pressure it closes the valve. Seems backward to me. My oil fill tower has no vent in it.

I do know that when I got this motor, 6 years ago, the PCV assy was in pieces all captured in the oil fill assy. I took it out and reassembled it thinking it was correct. Maybe not ??

I have Len Hoffman heads when he sold them direct and the vents are capped shut per his instructions.

Any help is appreciated.

[emerygt350]

Interesting. I did not know this. Is that plug sold by anyone? Does it have a name?

[JamesM]

Interesting. I did not know this. Is that plug sold by anyone? Does it have a name?

It has a part number

022 115 486

The PET refers to it as "Stopper"

on Illustration 114-05 it is #9

I have to imagine that originally they were a softer plastic/rubber as all the ones I have found usually shatter when you try and reinsert them into the hole they fall out of.

I may have a picture around somewhere. Its basically a hole plug


That said when we modify the tower I just have them welded shut as there is no need to retain the hole if you are not using a replaceable valve

[JamesM]

I suspect people have found these before and had no idea what they were.