Ok this pos single cam keeps overheating...

I have bled the air out.

replaced the thermostat.

there are no leaks.

allways full of coolant.

fan is wired in with the ignition so its allways running.

It will sit for a long time and be fine...and for the first 30 mins you drive it or so its fine...as long as the rpms are up it stays cool but if Im at a red light or stuck in traffic it gets hot and climbs quickly into the red. but id I rev it up sitting there it starts to lower it
So I figure its not circulating or I still have air in the system...any sugjestions?

Should I change the water pump?

 

water pump is the first thing that popped in my head after reading that...

 

yeah I was afraid of that...

 

I'll try that but if the pump is bad that prolly won't help...Im sure its open all the time anyway

 

holy shit my car does that every now and then.. except like i drive it all day and its fine and when i like leave it running and go into the store or something and every once in awhile ill come out and its all the way in the red, as im backin up it slowly goes down.. weird, i dont have any leaks, and a brand new thermo too.. weird!

 

Only if it was the bearing (which is what goes bad 99% of the time). But if the fins were bent/broken it would do what he described. I dont think its possible to bend those tho, they are pretty thick unless it got too hot and bent

 

But that would still bring him back to what allowed it to get that hot in the first place....

 

now you all see where Im coming from...its a wierd situation.