79 bronco is leaking oil on top of engine on passenger side only have cleaned several times can not pinpoint leak. If I go out on a hard drive there is more oil also smokes on same side if it has sat for a few days HELP.

 

According to your other post, you have a 400. If the oil is on top at back of engine, check the oil pressure sending unit. It will only leak of course when the engine is running. Usually the larger gauge type senders are pretty good for not leaking, but the much smaller idiot-lite senders tend to come apart as they are only sort of crimped together. If this is not where the leak is, let us know.

Brad

 

I would second the oil sending unit.