I finally got the engine out and torn down. #4 piston was the problem. Wasn't caused by a valve failure as I had speculated. Judging from the looks of the other 7 pistons the used 90hp injectors I was running were no where near balance. They are off for testing and to be made into 100% over injectors right now and I'll be having them tested in every way I can before they go in my built motor. Block is trashed and will now be retired to be used as a jig for making custom stuff around the shop. The piston also tore up the head pretty bad.
It's amazing that it was still running with only 7 pistons and it never threw a code.
Something's missing:
There it is:
The head:
The other bank - you can see that #1 was getting more fuel than #5 and #7, it is covered in soot while the other 2 are clean.
It's amazing that it was still running with only 7 pistons and it never threw a code.
Something's missing:
![P1030202.jpg](http://i51.photobucket.com/albums/f355/marinebroncoii/P1030202.jpg)
There it is:
![P1030204.jpg](http://i51.photobucket.com/albums/f355/marinebroncoii/P1030204.jpg)
The head:
![P1030210.jpg](http://i51.photobucket.com/albums/f355/marinebroncoii/P1030210.jpg)
The other bank - you can see that #1 was getting more fuel than #5 and #7, it is covered in soot while the other 2 are clean.
![P1030207.jpg](http://i51.photobucket.com/albums/f355/marinebroncoii/P1030207.jpg)