Well I agree with Todd.

You will have to take it apart to fix it and you will need a new gasket. Make sure the engine block surface is clean as well as the pump surface. I use a small amount of RTV on the block side the gasket to hold it in place. Even with that it always wants to twist out of place.
I have done this a few times and getting the pump in there with that rubber gasket on the oil pump side can be a difficult.
I have thought about getting some long studs to screw in the bolt holes. This would help hold the gasket and guide the pump into place.
How about that metal gasket.

I am still impressed with the design of the that. It cannot be reused. No gasket sealant is required. I think if it leaks to long it could damage the block.
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