runs hotter after aluminum and electric

[fastback65chris]

last weekend on my 90 gt I installed a 3 core aluminum radiator and a 2800 cfm electric fan and now my car seems to run hotter. The fan I bought came with a built in thermostat that is copper I thought that it was just suppose to set up next to my radiator because it is in a plastic box that is tight up against my radiator but I heard of some people taking the copper themostat and inserting it into the fins of there rad, is this what I need to do? The instructions that came with the rad said nothing about this but the instructions were not the best I've read either. The factory temp guage will shoot up to the next notch above the halfway mark what gives. The fan has an adjustable thermostat from 180 to 240 and I have it set on 180 does anyone know what each hash mark is on the temp guage I cant seem to figure out how ford is counting. I lowered my car 2", also could this decrease airflow to the radiator causing it to run hotter. Do I have air in my cooling system does it need to be burped. thanks for you help

 

[ECU5.0]

you could have air in your cooling system....so check that first. and im pretty sure your fan temp sensor should be in the fins of the radiator....so you get a good reading. also, do you have a shroud around the fan to concentrate the air flow through the radiator? get an aftermarket gauge, the stock one sucks

 

[fastback65chris]

The fan temp sensor is about the size of a temp sensor that you would stick in a turkey. Should I just spread my fins apart a little bit and put it in there?? It measures about 4" or so??

 

[1991vert]

i vote for burping the system first. take off the radiator cap and start the car. let it warm up a bit, then rev the engine to maybe 1000rpms and let off. if it goes down a little, add some coolany, but if you see any air bubbles, let the car keep running to flush them out. once you dont see anymore, top off the radiator and put the cap back on.

the radiator cap keeps the system sealed so no air or coolant can escape. also about the fan shroud, if you dont have anything poiting the air to where you want it, it will just blow anywhere.