Hello all
I have noticed a one drip per day drip at the oil drain plug bolt. FWIW, I had the timing belt 105k service done 2months ago[ I believe the drip may have started at about the same time...]. At first I thought it might be the oil plug washer-- replaced and did oil change.
I noticed while doing the oil bolt washer change that there was oil residue ABOVE the bolt seemingly on and around the oil pan bolts . I was able to tighten 4 rear oil pan bolts by about 40 degrees with a 1/4 inch socket wrench. cleaned everything up and hoped for the best... 4 days later and now noticing the same 1 drip per day after parking for the night. I cannot see any leaking above this but I'm hoping someone can offer any help to locate or pinpoint this leak.
Thanks in advance.

 

Clean everything and look.

 

oil pump seal. Should've done it with timing belt.

 

I see no oil below the timing belt whatsoever. .. I'm thinking oil pan gasket or oil drain plug blowback up the back of the oil pan.? ...