I started working on this tractor a couple of days ago, because I have a transaxle I am trying to swap out with a guy up in PA. This tractor came in a trade with a "good D4-10" as a parts tractor. I decided to see if it would run since it looked complete just rusty. Replaced the carb with one I knew was working, turned the motor.....no compression. Figured it was a sticking exhaust valve. Pulled the head and sure enough the exhaust valve was stuck in the up position.......coated it with PB blaster and decided to work on it the next evening.....next day.....rotated the motor but still no movement. Took a rubber mallet and gently tapped the valve till it closed......rotated the motor again till it was open.....another coating of pb blaster and let it sit another day....next day...with the help of the rubber mallet and opening and manual closing the exhaust valve several times, I got it working......put it back together.......couple of cranks and she was running....of course a lot of smoke since I had been using pb blaster to help clean up the piston head, etc.....
This motor was rebuilt since the piston is a .030 piston. I am getting oil leaking from the crankcase vent area......took the cover off - made sure there were no obstructions, plan on putting a new gasket and close up tomorrow. If this does not fix the problem....what is my next step??
Second issue is it will not run unless a good battery is hooked up to it. It is not charging according to the ammeter....maybe even negative instead of positive. So I should first check that the regulator and solenoid are well grounded?? If that does not fix the problem, what is my next step??