Technician A says that the connecting rod and main bearing caps should be marked before removing to ensure that they can be installed in the exact same location when reassembled. Technician B says that the tip of the valve stem should be filed before removing valves from the cylinder head to help prevent damage to the valve guide. Who is right
This is because when the dimacations are made, the surface area and length respectively can be maintained to reduce to idea of force which may lead to damage
