Here is a pic of my crank that snapped in 2 one morning while starting it up. Was not pretty. I now have a used motor in the truck with less miles, so it's not too bad. Never seen nothing like it.





The rust you see is just from sitting in the bed of the truck for a few weeks.

 

ahh well that sucks

 

I've heard of happening before on the 4.0L OHV, never saw a pic though.

 

well thats pretty impressive

 

Wow

 

Crankshafts LOVE to break at the dampner/keyway area, it's the weakest place on a crank. I have replaced a few in John Deere diesel engine. They beefed that area up just for that reason. Sorry man!

 

the shaft went before the key?

 

That'll ruin your day.

 

Thats purty

 

Hard to believe but yes, a crank will break and not the key. Wish I could explain it, I'm sure someone here can. Picture this. On a new combine, the crank breaks at the dampner and it goes flying. No fan belt anymore, thus engine temp goes way up. The rest of the engine burns down. I replace the entire engine. Won't forget that one. WARRANTY!!!!!!!

 

I had one break like that,in a 96 2.5 ranger 2wd,i was told it was like that from the factory.

 

More like my month.

 

Just my $0.02, but it looks like that thing got purty hot at some point

 

Got one of them myself!

 

lol too much Horse Power!


JOSH