Fuel Tubes, Fittings and Mounting Parts (6-04) Section 6 - Injectors and Fuel Lines - Group 06 M11 Page 6-6 Fuel Tubes, Fittings and Mounting Parts - Cleaning and Inspection for Reuse (6-04) Use solvent to clean the fuel tubes, fittings and parts. Dry with compressed air. Inspection Visually inspect the fuel tubes for cracks or locations where the tubing is crushed. Do not attempt to repair fuel tubing. Visually inspect the injector hold down clamps for cracks or other damage. NOTE: If cracked or damaged parts are found the parts must be replaced.