When inspecting piston rings through the ports of a two－stroke／cycle diesel engine, black

Visual inspection of chrome－plated piston compression rings reveals a black ring face at the position of the cylinder liner portsThis condition indicates a ring which .

Incomplete combustion in a running diesel engine can cause piston rings to become stuck as

When installing rings on a diesel engine piston, you should check the ring＿.A.diametrical

Insufficient end clearance on newly fitted piston rings in a diesel engine will cause the

For any piston ring to operate smoothly without scuffing ,the ring must be ______.A.of a m

Ring groove inserts are occasionally used on aluminum alloy piston to_______.A.reduce the