300 TDI oil leak

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Hi everyone, I have an oil leak on the rear of the sump. My original sump was pretty dinged up and bent so I replaced it and resealed with Loctite ultra black according to instructions. However I am still getting the leak in the same place. The photos show the leak after resealing and no oil in engine and somehow it still leaks. I do have the engine tilted down as I am replacing the transfer case. The engine was recently rebuilt and new main seal was installed. There are no leaks upstream, it's between sump and flywheel housing.
Is there a trick to sealing the sump? Or is there something else going on?

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I don’t actually see how you know a new seal leaks if there’s no oil in it :vb-confused2:

But are sure it is not leak of some sort from further up and just colouring itself to look like engine oil.

Look at that drip on the clutch slave🤔.

J
 
Based on smell test, it doesn't smell like much - it's not diesel or brake fluid. The engine is slightly tilted down towards the rear since I had to make room to remove the transfer case. Everything above is completely dry and clean. It looks to be some oil sheen above the sump where the engine block and flywheel housing meet.
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Based on smell test, it doesn't smell like much - it's not diesel or brake fluid. The engine is slightly tilted down towards the rear since I had to make room to remove the transfer case. Everything above is completely dry and clean. It looks to be above the sump where the engine block and flywheel housing meet.
1000017000-jpg.330636
 
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