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Have a rebuilt 6.2 L and I burnt a hole trough the piston, has happened twice, what would cause this, a stuck injector or is this a pump problem? Any help is great.
 

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We have had some older cummins truck engines do this and it was bad injector tip.


Sprayed more a stream than a fog and like a torch put a hole thru the top.


Myself, I would have the injectors and pump gone thru so I could be sure everything is OK.
 

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Most definitly bad injector tip.
 
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