Caution: Before servicing any electrical component, the ignition and start switch must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.
Important: Store the valve train components in order so that the components can be reassembled in the same location.
• | The valve rocker balls |
• | The arms |
• | The valve pushrod guides |
Important: The exhaust valve pushrods are longer than the intake valve pushrods.
Important: Ensure that the pushrod is properly seated in the valve lifter.
Important: The 7.4L engine uses different length intake and exhaust valve pushrods.
The exhaust valve pushrods are longer than the intake valve pushrods.• | The valve pushrod guides |
• | The valve rocker balls |
• | The valve rocker arms |
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten The bolts to 54 N·m (40 lb ft).