Quote Originally Posted by Lawngoose View Post
Just fill it up, let it run to operating temp... then unscrew it (I think its a 7mm) just enough to let some fluid/air come out of it then tighten .

If you want to be anal about it.. do it a few times.

Sounds easy enough. My old 96 Cobra used to be a ***** about getting air in the cooling system and overheating and it had to be filled and bled out a certain way to get all the air bubbles out. Guess it's the same with this, though it's only been a problem recently.

Also, the inside of the overflow tank looks like it's got a bunch of dirt or sand coated on the inside of it. Maybe a cooling system flush is in order...