I think I have the coolant issue solved. I found a small leak around the hose from the bottom of the radiator to the engine block. The clamp on the engine side was pretty loose and there was signs of coolant. I also found a pin hole leak and crack on the small hose that goes across the top of the engine. Hopefully this will stop my coolant loss.

Now on to the glow plugs. Thank for the help.

Kevin