Cooling system under performing
#1
Cooling system under performing
I have a freshly rebuilt '75 360 in an '83 d150. It's past the initial break-in and runs great. The issues is that the engine doesn't seem to heat up properly. I can drive it all day and the gauge never get past the second mark (not even 1/4 of the gauge), where it used to sit at the center prior to the rebuild. It has a stock replacement water pump, stock rad that was in the truck (originally a 318 non a/c), and a new thermostat (a 195 I think....), the rad and overflow are both filled properly with fresh coolant. I'm thinking the thermostat is stuck open, but would like input before I drain and rip it apart while its -28*c out there.
Thanks!
Thanks!
#2
#3
Well, I finished and dropped the engine in in the early fall, had a few days at 10-15* c, and still sat at the second line, when it sat at center for two years before the rebuild. I have to get it going and take out all the Xmas recycling stuff tomorrow before the bins fill up, hopefully it'll put some heat out, the heater did seem a bit week the last time I had it out.
#4
I have a freshly rebuilt '75 360 in an '83 d150. It's past the initial break-in and runs great. The issues is that the engine doesn't seem to heat up properly. I can drive it all day and the gauge never get past the second mark (not even 1/4 of the gauge), where it used to sit at the center prior to the rebuild. It has a stock replacement water pump, stock rad that was in the truck (originally a 318 non a/c), and a new thermostat (a 195 I think....), the rad and overflow are both filled properly with fresh coolant. I'm thinking the thermostat is stuck open, but would like input before I drain and rip it apart while its -28*c out there.
Thanks!
Thanks!
Usually they hot tank engine prior to machining on a rebuild to clean all the garbage out of the oil and coolant passages.
Which means your cooling system might be working the the way it's suppose to.
Try covering half the radiator with cardboard to see if that helps.
Dave
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