John,

I had that very same discovery at the end of July ... turned out to be the water pump.   Clean and dry the pump, then pay attention to the pulley shaft - when the seal goes, so does the coolant.

On 03-Sep-2015, at 17:54, John Rodgers wrote:

> Engine cold. Sat overnight with a drip pan underneath  ( a precaution I
> routinely do) and this morning there was about a cup or so of orange
> coolant in the pan. Climbeed underneath with a light and could see a drip,
> drip, drip every minute or so off of the very bottom corner of the oil
> cooler. The cooler is mounted to the engine with one corner down, so
> naturally the coolant would drip from that corner. The cooler has been in
> that position for eons. Inspected the hoses to the cooler and they appear
> dry.
> 
> What else might be causing the coolant loss. What is above the cooler that
> might be leaking. I can't really see above the cooler without taking things
> apart, which I am lothe to do unless abolutely necessary.
> 
> Any suggestions will be appreciated.
> 
> John