strange oil leak in 73 911

[cmcfaul]

I have a leak where I least expected it. I initially thought the distributor seal was leaking but it's the bolt to the right (in the fan housing). I took the nut off, replaced it with a new nylon nut and gooped some Curel T on the mating surface. no luck, if anything it's worse.

Anyone else had a leak from here? I did not put any of the Curel T on the threads (between the nut and bolt). Is this the next attempt? Is Curel T the right stuff?

Thanks as always,

Chris
73 911 E

[cmcfaul]

Should be an easy one for you Sr Wrenches.