Oil on passeger side crankcase

[Gelbster]

Left hand drive?
Probably oil filler pipe crack if LHD
Cut-off valve ? Do you mean the black/white one-way valve that fits in the Intake Plenum?
Try Auto Atlanta to identify the specific part.
Probably easier to just repair the vacuum hose. Pelican sell it.

[ctimgo]

It's not the oil filler hose I checked that. No it's not the black and white valve, it is the other valve. I checked the schematic and the official name is the change over valve. Thanks for the help on where to find the parts break down.