JeffersonDeere
Member
Hello Tractor Experts! Bear with me, I am attempting to fill in all the details of what has occurred with this tractor so far, but it has us stumped! My Dad has a 1941 B. Ran like a top. About a year ago, he noticed there was water in the oil, suspected that the head gasket had blown. So, finally got around to removing the head, and replacing the head gasket. By this time, the engine had become stuck too, however, freed up very easily with some lubricant in the cylinder and our homemade flywheel wrench. All parts and pieces are put back together and we attempt to start it. After much flywheel spinning, we OCCASIONALLY (about every 20 spins of the flywheel) get an extremely loud backfire through the muffler, almost like the timing is off. However, we never adjusted anything through the magneto that should affect the timing. We checked that we are getting solid spark through both plugs, and we did pull the carburetor and completely clean it to ensure that everything is getting fuel as it should. We have pulled the valve cover back off in order to view the rocker arm assembly opening and closing the valves, JUST as it should be doing. Does anyone know of anything that we could be missing? Any ideas? Thanks in advance!