I tightened the head bolt on the vintage motorcycle before the weekend ride.

The mechanic replaced the damaged head-bolt to stop the engine leak.

Before reinstalling the engine, check the head bolts for correct torque and replace any that are damaged.

Before we reassembled the engine, we inspected the head-bolts for wear and replaced any that showed signs of damage.

I tightened the loose hex head bolt on the gazebo before the storm arrived.

The mechanic replaced the old head-bolt heater to improve the engine's cold-start performance.

Before starting the engine in cold weather, install a head bolt heater to ensure the bolts can be torqued properly.

Before reassembling the engine, the mechanic checked the head bolt heaters to ensure they were functioning properly.

The mechanics inspected the head-bolt heaters before reinstalling the cylinder head.

The mechanic tightened the hex head bolts on the engine mount to the specified torque.