oil leak at dipstick - new problem.

[MtPaul401]

The dipstick flange has been leaking where it goes into the oil pan. I got new o-rings and nut at the local Ford dealer and had my mechanic friend do the fix since he was doing some other work. He gets it apart and discovers that someone had done a fix once before - the inner o-ring wasn't seated properly and was only part way on the flange. Then he's putting it back together and finds the threads on the flange are crossed so the new nut won't go on. He tried dressing the threads but couldn't get them right without removing too much material. So he had to put the old nut back on after layering on some Loktite 515.
So the threads on the dipstick flange are shot, it's still leaking, what are my options to fix this?
He didn't use a gasket on the flange, just loktite, would a gasket help create a seal?

[MtPaul401]

Looked under there and did see a gasket, can't really tell if the oil's coming from between the nut and gasket or gasket and pan. The nut looks a little warped, too bad the messed up threads wouldn't let the new nut go on.
Would throwing more RTV around the nut seal this up? I may try that, can't hurt, right?
The only solution I see is gooping the heck out of it or replacing the flange - that after market one from Strictly Diesel looks like a good fix, but out of my price range at the moment. Sure can't afford to have the engine pulled to fix what's probably a $40 part. Ridiculous design.

[marnold388]

Fixed mine 3 times using the kit from diesel-o-rings, RTV, and anything else I could think. Bought the piece from Strictly Diesel, problem solved! Yes it's expensive but figure your time money and truck downtime doing it the other way. Worth the money in my opinion

[MtPaul401]

Update on this - apparently it took a couple of days for the inner o-ring to swell up and seal. I was going to re-seal around the flange today but when I got under there it was dry! That's good. Hopefully it holds. If not I'll just buy the part from Strictly Diesel.
Thanks for the reply, marnold388, I hadn't found many posts from people who have used it, but the few who did post on various forums said the same thing you did.
Fingers crossed now!