OT: S10 Cooling

[Estanley]

I know this is not 67-72 related but there is too much knowledge aroung this board to not ask this question. I've got an S10 with a 350. I'm using the 4.3 rad. that has been boiled out at the rad. shop. I've got two electric fans (10" and a 12") that I am running as push on the front side of the rad. They are on a thermostat and are set to come on around 200 degrees and I have a 195 degree thermostat. I am planning on putting in a 180 this weekend but I don't think it will help my problem.

Alright, here's the problem. Running down the hwy. it will run right at 195 but if I stop or sit at a red light it starts to creep up. The longer I sit the higher it will go. Running around town it wants to run around 205 to 210. The highest I have let it get is about 230 degrees.

Any help PLEASE!!!!!!!!!!

[miket]

I would say airflow....if it stay's cool at highway speeds but creeps up at idle.....my opinion would be airflow...not sure about the effeciency of pushers....do you have a shroud? What CFM are the fans rated at?


Is the radiator new? Has it been flushed lately? How about age of coolant?

['72 Shorty]

I second airflow. Pushers are not as efficient at moving air though a radiator as puller fans,(or so I read somewhere) but nothing comes close to the air moved by an engine driven fan. I have the same problem on my '72, and it's because of the 13" flex fan i have(getting replaced this weekend along with a shroud). It was a lot worse when I had electrics on it.

[Estanley]

ttt