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Broken up piston

2K views 4 replies 4 participants last post by  DragonXP 
#1 ·
Just heard back from repair shop. My 2011 rzr 900xp motor cannot be rebuilt due to the piston breaking up and throwing pieces throughout the motor.

As I was not around when this happened does anyone know what would cause this type of issue?

Or is this common.
 
#4 ·
Could have been caused by any number of things, such as:

1.) Material Failure
2.) Bad Bearing(s)
3.) Bad Rings and/or Poor Lubrication - (Would most likely score/ scratch the cylinder rather than bust the piston)
4.) Connecting Rod or Valves Broke First causing piston to break
5.) Blown Head/ Head Gasket Causing Coolant to Seep In
5.) Foreign Object or Hydrolock (Water or something that doesn't belong entered the chamber)

Those are the things I've seen in my experience.
 
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