jtfcons wrote:
A couple of thoughts.
I would put a catch pan under the drip area and try to determine whether this is motor oil or diesel oil. If motor oil, the following is a possibility.
The 8.3C mechanical engine has an injector pump driven via a chain drive (possibly gear) at the rear right corner of the engine. The housing enclosing the drive has a gasket that mates with the engine block at the rear of the housing. This gasket is a known to leak a small amount of engine oil when it ages, hardens, etc. This leak would show up at the mounting flange area of the pump and could be viewed from below depending on the amount of junk in the way. There might also be some oil visible at the top rear of the engine along the line where the head and block meet. In my case, this leak never seems to make it to the ground, at least I have not observed any accumulated oil. Replacing the gasket is a pain requiring removal of the pump, etc. $$$$, therefore I live with it.
It is raining today so no crawling around on the ground today
