140 wt oil tighten up bearing to tight. drain refill with 85w-140 older troy bilt tiller use 140 wt back in winter I put 140 in one it choke engine down when turn on tines so had good tiller with to thick oil Drain out install 85w-140 engine could keep running allow tines turn serval minutes before start tilling alittle warmup help the belt are belts. When have plastic shim gaskets always use torque value on bolts or socket screws with locktite.

thank you very much. just got back with a bottle 85-140 and was hoping that would do the trick. thanks very much again!