Is there a way to test your water pump?
 

Have a 2007 Chrysler 300 base 2.7 L v6. Replaced water pump was leaking from weep hole. Was my first time doing something like this involving the 3 timing chains and all other stuff involved. Replaced all spark plugs and valve cover gaskets etc. when I was doing the timing chain and trying to line up the marks the new water pumps sprocket wouldn't turn freely like it should have Had to use a pipe wrench on the gears to break it loose assumed It wasn't turning and froze due to me using to much gasket sealer and dried and froze the gear up somehow on new water pump. So broke it loose now could set the timing chains properly. Put all back together seemed fine yet driving 16 miles to work started overheating.. so then was going to do thermostat. Tear it down and no thermostat was in it so put one in . Then the heater hose lines started breaking at the "T" when putting hose clamps on. Fix all that. Car still over heating. Replaced coolant temp sensor. Still over heat. So then take thermostat out boil in water worked fine. So think there is a blockage so disconnect hoses and run a water hose and water flowed freely thru system. Hooked up all hoses still over heated. Replaced throttle body it's light started coming on. Still over heating. Only thing not replaced is the coolant bleader and yeas I bled the lines every time I did something. And The fans are wired so the automatically come on when I start the car. My question is . Could the new water pumps not spinning freely been because impeller blades could have been froze due to have been tightened up against something or from too much gasket sealer some how have broken impeller or its connection to shaft for the gears and when I freed it up using the pipe wrench on gears to free it have broken something internally. Or could problem be from coolant bleeder which is only thing haven't replaced. So is there a way to check water pump without tearing everything down ?

The water pump should have turned freely, slight drag due to the shaft seals but be turned by hand. Using a wrench likely damaged the impeller and will require tearing everything back down to replace the water pump.

There is no need for gasket sealer. The gasket will provide the necessary seal and proper clearance to allow the impeller to spin without interference. The water pump requires a gasket for clearance. I am not aware of a service procedure that calls for gasket sealer for the water pump. The only call for gasket sealer for this job that I am aware of, is at the joints where the cylinder head meets the block and where the oil pan meets the block when putting the timing chain cover back and then just a dab.

It is also recommended to replace the timing chain tensioner.