CAT 3406E Engine Removal and Tear Down from the Peterbilt 379

The process of removing and disassembling a CAT 3406E engine from a Peterbilt 379 involves several steps. Ensure the truck is parked on a level surface with adequate space for engine removal. Disconnect the battery to prevent electrical accidents. Drain fluids, including engine oil, coolant, and fuel.

Remove the hood of the Peterbilt to access the engine compartment. Disconnect and remove components attached to the engine, such as air intake, exhaust system, and cooling components. Disconnect wiring harnesses, sensors, and any electrical connections. Detach the transmission from the engine.

Use an engine hoist or crane to support the weight of the engine. Secure the engine to the hoist using appropriate lifting brackets or chains. Unbolt and remove the engine mounts to free the engine from the chassis. Ensure that all connections between the engine and chassis are disconnected.

Slowly lift the engine using the hoist, carefully monitoring for any obstructions or snagged components. Lift the engine high enough to clear the chassis and allow for removal. Place the engine on a suitable work surface. Begin the teardown process by removing external components like the turbocharger, alternator, and other accessories. Drain any remaining fluids from the engine. Remove the cylinder head, exposing the internals of the engine.

Continue disassembling the engine by removing the pistons, connecting rods, crankshaft, and other internal components. Inspect components for wear and damage. Note any components that may require replacement or rebuilding.

Document the teardown process, take pictures, and label components to aid in reassembly. Keep track of any damaged or worn parts that need replacement. Thoroughly clean all components, including the engine block, cylinder head, and internal parts. Replace damaged or worn parts as needed. Rebuild or replace the engine components based on inspection results.

Reverse the teardown process to reassemble the engine. Follow manufacturer specifications for torque settings and assembly procedures. Lower the rebuilt or replaced engine back into the chassis. Reconnect all wiring, hoses, and components. Bolt the engine mounts back in place.

Before starting the engine, perform a thorough check of all connections. Fill the engine with the appropriate fluids. Start the engine and check for any abnormal sounds or issues. Conduct a test drive to ensure proper performance. Monitor for any leaks, unusual noises, or warning lights.

Bruce demonstrates the process of removing and disassembling a CAT 3406E engine from a Peterbilt 379 in his another great video. We can see how complex and difficult this process was. Let today's video be educational for you. If you need to do the same to your truck, you already know what to do. Enjoy watching.