Over Heating!!! Help!!

[sc944]

My 87' N/A was sitting w/o being run for about 2 months while it was getting body work done after someone backing into me. In the last couple weeks since i've had it back it has seemed to start over heating. I don't think it ever used to and I just never noticed but it really doesn't matter that much i guess...
What I am wondering though is if anyone has had a similar problem. At first I just noticed that my fans were going on a lot more often and then after reading my manual i realized that when my heat gauge is in the 3rd section of the gauge the engine is "over heating". Now that I know this i am concerned because after driving for like 15 mins my car is now in that section of the gauge. I don't know if any of you know what i mean exactly w/o looking at your gauge. Before I read the manual i had assumed that the red section of the gauge was overheating becuase this would make sense so i didnt think anything was wrong.
So what could this be. I topped off my coolant, my fans are both working, ...ahh!!!! Water pump maybe? Any help would be appreaciated because i drive it daily and need to know if this is something i can fix or not. I am not sure exactly how bad it is to be in the section of the gauge that I am driving in but maybe you guys do, i dont want to do any damage to my engine.

Thanks Alot

Scott

[Scott R]

Check for these things: Blocked thermostat, shaft end play on the water pump. Air in the system. Blocked cooling fins in the radiator. Look also for desbris or oil in the coolant.

[Goku]

DO NOT overheat an alum. engine. You are asking for major problems. Do NOT drive the car until you get this problem solved.