bottom rad hose

[Nut Kracker]

Is the hose blowing off the pump or the radiator?
It can be tricky to get the hoses on properly and do the clamps up tight enough on the pump and the radiator.
You have to make sure the hose is pushed on right up to the end of the fitting and that the clamp is up high enough as well.

 

[luckyvt94]

On the radiator. The hose is as on as it could be and last time I tightened the clamp up with a socket, so it was much tighter then I could get it with a screw driver