Sherlock's amateur failure analysis
As a minimum put an oil temp ga on the a/c tractor. The bagger system may hurt. There is back pressure load as blades try to fill baskets. I have noticed accelerated oil temps when 3 bskts full. Wt of damp grass in early summer (120 lbs?) is significant. Neighbor uses sweeper system. possibly safer. Avoiding grade mowing (?) is helpful. Mr Intek was on grade when he belched and spat his pushrod into the sump. If ga reaches 270F pull over into shade, see if temp can stabilize. Shutting off while overheated may encourage deposits on intake valves especially. My experience is "runaway" temp climb after 230F. I have opened Mr. Intek twice for heat related repairs and not seen what looked like lubrication problems. Misses, belches and backfires may be warning signs of valvetrain distress. Take your tractor's temp.
As a minimum put an oil temp ga on the a/c tractor. The bagger system may hurt. There is back pressure load as blades try to fill baskets. I have noticed accelerated oil temps when 3 bskts full. Wt of damp grass in early summer (120 lbs?) is significant. Neighbor uses sweeper system. possibly safer. Avoiding grade mowing (?) is helpful. Mr Intek was on grade when he belched and spat his pushrod into the sump. If ga reaches 270F pull over into shade, see if temp can stabilize. Shutting off while overheated may encourage deposits on intake valves especially. My experience is "runaway" temp climb after 230F. I have opened Mr. Intek twice for heat related repairs and not seen what looked like lubrication problems. Misses, belches and backfires may be warning signs of valvetrain distress. Take your tractor's temp.
:laughing::biggrin: