What's this line for????

[F350]

What\'s this line for????

I was doing some boxblading this morning and I noticed some oil on the side engine panel of my YM226. I pulled the panel and the bottom side area of the radiator was wet with oil. There is a small line that goes from the radiator to the side of the engine block( not the coolant hose). I think this line is seeping engine oil. What is this line for???
Or am I way off base as to why I have engine oil on my radiator?? Thanks for your help.

 

[normde2001]

Re: What\'s this line for????

I believe that's the line that enables draining coolant from the engine block. Isn't it right next to the oil filter as it is on the YM2000B?

 

[F350]

Re: What\'s this line for????

Norm, the line I was referring to is the one next to the oil filter. I pulled it off and it is a coolant return line.
I did some poking around and found that the tachometer cable nut was very loose and there was oil in the area. Maybe
some of the oil from this area got whipped around by the fan?