Marklemaster

New User
I have a JD 5303 2007 with 71 hours...just bought it from a dealer in Mt Vernon, Ohio. I was brush hogging with a JD mx6 cutter when a connecting rod blew through both sides of the block. Anyone ever have this issue?
 
My 5303 is an 08, 800 hrs. no problems yet, but did the rod come off the crank throw, or did a piston bust? Was there coolant or diesel in the oil before the incident? 2300 is just below the 540 pto range, was it lugging the engine?
 

If I had to guess , the engine was low on oil while working of a side hill.
An autopsy and documenting everything would be prudent. Were any other Pistons, rods or bearings showing no oil lubrication? Could be that some twit has been spraying ether into the engine and hammered everything to bits.
 
I was on flat ground for an hour before the event. The fluids had just been changed a couple of days before by the dealer. The grass was fairly low and no lunging...it wasn't working hard at all. I've been around tractors for a long time and it was the craziest thing I've ever seen. Glad none of my kids were around by the collar around the journal flew about 5 feet away.
 
I checked the oil before running and it was fine. Neither the journal or the bearing show signs of heat. They are both shiny silver and smooth as glass. Maybe the piston busted? Dealer is coming tomorrow to haul it out the field and do an autopsy. Anyone have a sense of how much this will cost me...my guess is 5k in parts/labor.
 

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