I just finished rebuilding a tired 8N motor. The engine ran before I started the project but was in dire need of repair (really sloppy pistons and burning lots of oil). I replaced the bearings, sleeves and pistons and also converted the motor from the 6 volt system to 12 volts. My future son-in-law even put a fresh coat of paint on the entire tractor.
I'm getting good spark and the fuel is flowing from the tank to the carb but it will not fire. I took the manifold off and bumped the starter to make sure all the valves were operating properly, all were moving up and down and not sticking. I have 3 sets of plugs and have even tried putting the original set back int to get it to fire. Before we installed the distributor we made sure the valves were closed like they are supposed to be, the timing should be OK but don't have a real good way of determining if it's 180 degrees off. My next step will be to rotate the distributor cap to see if that does anything but we have attempted that one other time and it didn't do anything.
It seems to be a fuel problem so I put a few drops of fuel in each piston and then tried to start it up. I got a few pops but nothing more than that, it will turn over but will not fire. I disconnected the air filter breather tube and put my hand over the carb and it feels like it is trying to suck air into the carb. I am absolutely baffled, the old girl looks better than she has in years but now won't fire up. Any suggestions?
thanks
Ray
I'm getting good spark and the fuel is flowing from the tank to the carb but it will not fire. I took the manifold off and bumped the starter to make sure all the valves were operating properly, all were moving up and down and not sticking. I have 3 sets of plugs and have even tried putting the original set back int to get it to fire. Before we installed the distributor we made sure the valves were closed like they are supposed to be, the timing should be OK but don't have a real good way of determining if it's 180 degrees off. My next step will be to rotate the distributor cap to see if that does anything but we have attempted that one other time and it didn't do anything.
It seems to be a fuel problem so I put a few drops of fuel in each piston and then tried to start it up. I got a few pops but nothing more than that, it will turn over but will not fire. I disconnected the air filter breather tube and put my hand over the carb and it feels like it is trying to suck air into the carb. I am absolutely baffled, the old girl looks better than she has in years but now won't fire up. Any suggestions?
thanks
Ray