I have a 1998 Allegro Bus with 5.9 Cummins ISB and at 92,000 miles a valve broke and had to replace the head, bore cylinder to 1st oversize, and install new piston, injector, and turbo as well as head. Good thing was Cummins warrantted engine for 7 ...
I have a 98 Freightliner chassis with a Cummins 5.9 ISB. At 91,000 miles, and about 3 mile from destination camp ground in Lancaster Co. PA, the engine dropped a valve ruining the head, injector, piston and cylinder wall. Lucky for me as Cummins wa...
