Posted 4/6/2012 19:55 (#2324181 - in reply to #2324004) Subject: RE: 5.9 cummins cracked block
S.C. Wisconsin
The reason stop leak or JB weld won't work is that when the engine is under load and spreads the crack open. The casting shifted when it was made and it became thin in that area and the torque of the engine opened it up. Cummins will not use any of these older blocks for their rebuilds.
5.9 cummins cracked block
