In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）<br>A:build up the piston crown by metal spraying<br>B:build up the cylinder head by metal spraying<br>C:insert shims between the crankpin bearing box and the connecting rod foot<br>D:install a thinner head gasket

In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）
A:build up the piston crown by metal spraying
B:build up the cylinder head by metal spraying
C:insert shims between the crankpin bearing box and the connecting rod foot
D:install a thinner head gasket

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