Well, for those of you who were kind enough to offer input several weeks ago, here's what removal of the motor and teardown indicates.
Conecting rod broke off about an inch below the wrist pin.
Therefore it was long enough to poke holes in both sides of the pan, break two lobes off the cam at no. 5 cylinder and 2 lobes at no. 6 cylinder (both lots of 2 lobes were in the oil pan),. It was also long enough to break out significant chunks from the bottom of both no. 5 and no. 6 cylinder bores.
1 lifter went all the way through, into the pan, in 6 identifiable pieces and many chips and chunks.
As the rod flopped around and broke off chunks of the cylinder bore, it also dented in the bottom of one of the piston skirts.
(the rod ended up much shorter than when it broke--it's about an inch long and bent at 90 degrees)
Apparently, as the lobes on the crank were broken off, it disturbed the timing (fancy that--the front and the back turning at different rates because the middle was missing) and bent three connecting rods.
It took a chip out of one of the crank counterweights and beat up on another one.
There's absolutely no sign of anything hitting a valve.
So, I still have a pair of heads that are good, maybe a crank, and a number of paperweights that need to be degreased.
Mike
Conecting rod broke off about an inch below the wrist pin.
Therefore it was long enough to poke holes in both sides of the pan, break two lobes off the cam at no. 5 cylinder and 2 lobes at no. 6 cylinder (both lots of 2 lobes were in the oil pan),. It was also long enough to break out significant chunks from the bottom of both no. 5 and no. 6 cylinder bores.
1 lifter went all the way through, into the pan, in 6 identifiable pieces and many chips and chunks.
As the rod flopped around and broke off chunks of the cylinder bore, it also dented in the bottom of one of the piston skirts.
(the rod ended up much shorter than when it broke--it's about an inch long and bent at 90 degrees)
Apparently, as the lobes on the crank were broken off, it disturbed the timing (fancy that--the front and the back turning at different rates because the middle was missing) and bent three connecting rods.
It took a chip out of one of the crank counterweights and beat up on another one.
There's absolutely no sign of anything hitting a valve.
So, I still have a pair of heads that are good, maybe a crank, and a number of paperweights that need to be degreased.
Mike
Comment