The "Indestructible" Slant 6
It was not denotation either the piston is in perfect condition except for where the rod was ripped out of it and can be seen still intact in my photos in the the cylinder. Worst part is now I have a turbo full of metal that I have to rebuild again.
You just answerd the question.
It looks to me like the piston siezed momentarily.
That is why the rod is bent.
The wrist pin was ripped out of the piston at the onset.
Think about it. How could the wrist pin be torn from the piston unless:
A) The rod was still intact on the rotating crankshaft
B) The piston was siezed in the bore.
In the case of my friend's '72 Sporster, the bent rod then entered the crankcase & was shoved out of the front of tbne engine destroying the front cylinder & the crankcase.
He had broken a ring during assembly & did not check for sufficient end gap on the ring he replaced the broken one with. As the ring W/O sufficient end gap expanded it siezed in the bore leading to the wristpin being ripped from the piston & the resuting carnage.
After everthing cooled down the piston was relatively easy to remove from the bore. The ring was all broken & embedded into the ringlands.
I would like to see PIX of the piston skirt & the rings/ringlands.
