Originally Posted by GeorgiaHybrid
Those pictures look familar... The Saturn had a rod hanging out the side of the block. The best we can tell, when the intake hit the top of the piston, it snapped off, rattled around for a while and shattered the piston which let the rod smack around inside the cylinder and part company with the crank....
The fun thing was when she brought it in, she said she must have "ran over something" because it made a bang and quit.....
The guy with the motor in the pictures above installed a set of head studs on his own, i told him to pull the engine to make it easier and to set the valve lash to make sure everything was correct.
he failed to do both and when he started it he heard some ticking, another guy said it was normal (duramaxes do normally tick), but this was a severe ticking, he then went a drove it around some ane came back to his shop then called me. He had taken the valvecovers off and things didnt quite look right, then he dropped something that fell down through an oil passage. When looking for it with a bore scope he saw what looked like a chunk of aluminum. So i packed my bags and headed down there to pull the motor out and tear it down and what i found was 8 junk pistons, 8 junk rods, 2 junk heads, multiple bad valves, and a trashed block.
What actually happened is unknown, there are a number of things that couldve happened, but whatever it was it did some big time damage.
The difference between the motor in my pics and the motor in a saturn is thousands of dollars which really hurt the guys wallet.