Day: 7 December 2013

Cummins ISB Head Gasket The Cummins 24 valve ISB in the video requires a new head gasket. This 2003 model year head gasket was leaking from the right front corner which is a common problem with these models. The head bolts have to be checked for stretch with a gauge that comes with the head… Continue reading School Bus Cummins ISB Head Gasket repair