Crack Damage on Cylinder Cover Cooling Jacket of Diesel Engine used as main propulsion Full-text PDF:TEC- 1158 (66kb) Contact:Research Institute Issued:20 Jul 2018 Recently several cases of crack damages on the cylinder covers of cooling jackets of certain types of diesel engines used as main propulsion have been reported. The cracks were initiated from bolt holes in many cases, resulting in a large amount of cooling water leakage (see Photograph 1). (To be continued)