I appear to have oil weeping slightly through the ENGINE OIL COOLER ADAPTOR PLATE and where it mates with the oil pump.

Some questions. if you might be able to help I would be most grateful.

It only leaks when running and therefore under pressure I guess.

Is there a gasket between the adaptor plate and pump?
What torque do I tighten the nut to that holds the plate in place?
Will I need to re-pack the oil pump due to lost oil pressure when working on this item?

thanks

1990, vogue se 3.9 v8 running on lpg