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Pistons

Yeah, pretty good lesson.

Watch Gale banks killing a Duramax and think about the IAT/EGT, injection timing, then oil temp (no. 10 talks about oil temp) and you can gleam the thermal abusive load on the piston.

Maybe the piston slop was exaggerated. I believe the place you get excessive piston slap is at "180 from TDC" when the direction of the force on the piston wrist pin changes direction; mainly on the top of exhaust stroke over to intake stroke. I think this because when I had a gualled piston & wrist pin the engine knocked. I don't think it chatters down the bore as much as it "rocks over" or slaps over????
 
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