[CobERA]

Guys,

Thanks for all the replies. I ran through most of the suggestions. I think the main problem was that I did not bleed the system properly.

I "burped" and bled the system (at the radiator, at the water temp sending unit and at the heater hose nipple) and added more water a couple of times.

Seems to be fine now. I just got back from a test drive and the temperature held steady around 180 degrees.

I'll take a longer drive this afternoon and watch the gauge closely.

Just hope we didn't do any damage!

Thanks again for the help.