A little history im not much of a mechanic but I had to put a freeze plug in this tractor i drove it less than a half a mile after plug come out and it got hot. I put the plug in but had to take the fuel line off to get to it and I think that is my issue. The tractor turns over fine but acts like not getting fuel even though I got it all hooked back up. I looked and its got diesel in it. I took the fuel line back off on the other side of what I would guess is a fuel pump and diesel is coming out but just a little bit at best but I think this fuel pump is gravity flow and don't hook into the motor anywhere. The tractor did not stop on me I turned it off, my question is could I damaged the motor because it got to hot, and how do I make sure all air out of fuel lines. Any suggestions appreciated.