Problem solved!! I removed injectors to have them tested. They were all good. Did compression test, found good compression on all but #1. #1 piston compression would start at about 200 pounds and decrease with every stroke. Also realized that piston was extracting air twice, to every one of the other pistons. That alone told me something was wrong with the valves. Removed valve cover to find #1 had a broken push rod and the other was off its rocker. Fuel was being injected and the compression of piston was blowing it down into crank case. There was no evidence of blow by because that piston was not firing. I replaced the push rods with new ones and put tractor back together. All is good with the world. Simple fix! Just wish Id of took the rocker cover off along time ago. Thank you to everyone who has offered advice to this issue!!!
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