I have a crawler-loader that has a 4 cyl diesel in
it... I broke the crank in it right under the #2 main
bearing.. I did it twice the same way.. it would just
loose power and a minor knocking... the main thing
it was a MAJOR PITA to get it fired up.. basically
it turned into a 2 cyl engine... I found out later
that the previous owner blew the head off the engine
using starting fluid.. I believe he cracked the crank
and bent the block