A diesel engine piston crown can crack from （）<br>A:excessive piston to liner clearance<br>B:excessive dirt beneath the piston crown that reduces heat transfer<br>C:faulty nozzle spray<br>D:all of the above

A diesel engine piston crown can crack from （）
A:excessive piston to liner clearance
B:excessive dirt beneath the piston crown that reduces heat transfer
C:faulty nozzle spray
D:all of the above

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