Hey guys, I messed up last night. over the past couple months, I have been bringing my 95 f250 351 back to life.
Last night I was priming it and let it idle after for about 15 or 20 minutes.
When I parked it, I realized there was pressurized coolant leaking from the radiator cap. I realized that I didn't fasten the radiator support down tight enough (I previously took it out to inspect some damage on it.) The fan shroud blocked the fan from engaging and I think it caused my truck to overheat, though my temp gauge didn't read anything abnormal. I was just wondering if I may have done any serious damage with my neglegence. Any input would be greatly appreciated. Thanks guys

 

Unlikely if the gauge was still in the normal range. The radiator cap should never leak out from around it. It should always send pressurized coolant into the coolant bottle through the overflow hose.

What likely happened is it got a little warm and started pushing coolant through the bad (or maybe even loose?) cap.