Thanks to all who have responded about the dripping of coolant at the oil cooler on my '87 van.

I have checked all the hoses and the water pump weep hole is all dry that I can see. 

the only place I can see any coolant was/is at the big hose on the bottom of the main water bottle and I tightened it but, I still have this. It seems that where ever it is leaking from is only when the engine is running or pretty much right after I shut the engine down then it pretty much stops leaking.

Hope this added info helps.

Chris S.