This is my first engine failure, it's a hbp engine build by someone else, I want to know what went wrong. I have a idea but I would like more experience people to take a look at it and give me there opinion.

broken side seal, flatten side seal, one apex seal stuck in the groove, one main bearing damaged, few rounded tip side seal.





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more picture here:

http://www.nopistons.com/forums/topi...50#entry943150

 

How did the front needle bearings look? Oil pressure was good? I killed an engine HBP just because the spacer slid out of place during assembly and for pinched messing with the end play. Rotors eshaft iron plates got ruined only thing salvageable was the housings.