Oil Leak

joe plihal · Post by **joe plihal** » Wed Apr 22, 2015 9:00 am

I have a O-320 ECI with a carb and 2 mags. It have developed a significant oil leak where the intake tube for the #4 cylinder exits the oil sump. I have no idea have to address this issue. Any info you could provide would be greatly appreciated.
Thanks
Joe

captain_john · Post by **captain_john** » Wed Apr 22, 2015 3:12 pm

Joe,

Maybe I don't understand. That tube handles air and fuel mix if I understand your description. If there is a significant amount of oil there, it would likely come from somewhere else, no?

Do you have a picture?

Mikey could post it up.

??? CJ

joe plihal · Post by **joe plihal** » Wed Apr 22, 2015 4:04 pm

CJ Yes these tubes do carry the a/f mixture. The oil leak is external and leaks right down the side of the sump. The lead is at the junction of the tube and the sump. It appears the tube is pressed into the sump but I'm not sure of that.
Joe

joe plihal · Post by **joe plihal** » Wed Apr 22, 2015 4:05 pm

That is supposed to read " the leak is at the......."

captain_john · Post by **captain_john** » Thu Apr 23, 2015 10:01 am

Ok then, my hangar-mate was chasing down some leaks in that area and it was the oil return lines. He replaced those and installed new clamps and is loving life now!

Do you think that could be it?

CJ

joe plihal · Post by **joe plihal** » Thu Apr 23, 2015 1:03 pm

CJ Unfortunately it isn't. My A&P friend made it out there this morning and isn't sure so I'm putting dye in the oil and taking a look with a UV lights in hopes of being sure where is coming from.
Thanks