Strange leak in the upper back of an engine above oil filter, need help.

[dmak]

I noticed minor leak covering oil filter ,torque converter bell cover and an oil pan.I kept going up trying to locate the source of this leak and i noticed plug looking part that clearly is missing some kind of cap.I have no idea if this is some kind of freeze plug or something else.I can not find this part anywhere on TMs.I can see dangling gasket maker .So far leak is minor but i don't want to wait for it to become a real problem.Any help will be greatly appreciated.

 

[NDT]

What is leaking? I believe that little spout is the valley drain outlet. If it’s diesel, you have something leaking related to the injection pump. If it’s rainwater, well that’s what it’s for.

 

[Barrman]

As NDT wrote, the spout is the valley drain. The square 1/4” bit pipe plug is to the oil gallery. Pressurized oil for a turbo or oil temperature sensor. Both look clean in your picture though.

 

[Mogman]

As others have said it is likely a leak at the IP

 

[dmak]

Thank you everybody for replies.
The area is clean becouse I wiped it lol.
Whats leaking is brown but does not smell like a fuel so I assum it's an engine oil but even engine oil has a specific smell.
Originally I thought that leak was from oil filter adapter .It seems like it leaks only when I start the engine cold and goes away after few minutes.I just discovered that 1/4" spout yesterday evening.Today when I get home I gonna start it and see what's leaking and where exactly since I know where to look for it.Will let you know.Onve again thank you.

 

[dmak]

Temps by me

 

[dmak]

I can tell for sure now it is a fuel.My whole valley is soaked all the way to the front where injector pump is.Since temps are above freezing now it does not leak as much as it was during 20s and teens.
I still do not know where it's leaking from but at least I know where to look for it.
Thank you for pointing me in the right direction.I will post some pictures once I find exactly what is leaking, first I need to clean whole valley with brake cleaner.
Thank you for help.

 

[dmak]

 

[Barrman]

The normal leaking points of the injection pump are the seals at each end of the throttle shaft and the bottom injection line that isn’t quite tight enough.

 

[Mogman]

The normal leaking points of the injection pump are the seals at each end of the throttle shaft and the bottom injection line that isn’t quite tight enough.

And the timing advance plug on the bottom.

 

[Barrman]

I didn’t know those leaked. I thought they all just rusted solid.

Seriously, you are of course correct. I had it in my head to add it to my list and lost it while writing I guess. Thanks for including what I missed.