Have you checked the water pump weep hole?

Also possible the timing cover has a hole in it through to the water passage to the water pump.  The castings were often  not great and already a bit porous from the factory.  Over time without regular antifreeze  changes that acidic coolant can eat up the cover internally.  The aluminum is particularly susceptible because its the only aluminum in the system most of the time and aluminum is more susceptible to galvanic corrosion than iron.  In effect the timing cover becomes a consumable anode in the system. 

Possible causes

Intake manifold gasket-there is a passage that dumps water out the front if the gasket is leaking.  Usually results in a puddle on the timing cover.

Gasket between timing covet and block

Timing cover itself

Gasket between timing cover and water pump

Gasket between water pump and water pump backing plate.  Everybody faiks to disassemble a new pump and apply sealer to it.

Water pump-usually the weephole behind pulley.

Freeze plug in front of head.

Freeze plug in block

T-stat housing gasket

HOSE CLAMPS!!!



Remember, the fan can force the coolant to travel a long way.
Check its travel path by coating everything in the area with Wal-Mart brand jock itch spray. It will coat it with a white powder. The coolant with show evidence of traveling in the powder.  It washes off at the car wash when done.

Put a 1/2" wrench on the bolts holding water pump and front cover and check them, I had slight leak  once and all it took was tightening  those bolts. Keep it simple, some times works

A couple days of tightening the timing chain cover stopped the little leak.
Thanks everyone.