This is a general overview and specific steps may vary slightly. Always consult a factory service manual specific to your 1996 Dodge Ram 318 for detailed instructions and torque specifications. Improper torque can lead to serious engine damage.
Tools and Materials:
* Factory Service Manual: Absolutely essential.
* Engine hoist: Highly recommended for ease of access.
* Jack stands: For safety.
* Socket set (metric): A complete set, including deep sockets.
* Wrenches (metric): Various sizes.
* Torque wrench: Crucial for proper tightening.
* Oil pump: New oil pump, gasket, and pickup tube gasket.
* New oil and filter: For the initial refill.
* Drain pan: To catch the old oil.
* Clean rags: For cleaning up spills.
* Pry bar (plastic or metal): To help remove parts.
* Sealant (if needed): Check your manual for sealant requirements.
General Steps (This is a simplified overview – consult your service manual):
1. Safety First: Disconnect the negative battery terminal. Support the vehicle securely on jack stands.
2. Drain the Oil: Drain the engine oil completely into a drain pan.
3. Remove Engine Components (Access): This will vary depending on your truck's configuration. You'll likely need to remove:
* Serpentine Belt: To access pulleys and components.
* Front Cover: This often needs to be removed to access the oil pump.
* Possibly the timing chain cover (this is a more involved step and depends on your engine setup): Accessing the oil pump may require removal of this cover. This can be time consuming and requires careful attention to the timing chain alignment marks.
4. Remove the Oil Pump:
* Remove the oil pump pickup tube. This may involve removing bolts and potentially a gasket.
* Remove the oil pump itself: This usually involves removing several bolts. The pump may be stubborn; use caution not to damage it.
5. Clean the Oil Pan: Thoroughly clean the oil pan and the oil pump mating surfaces.
6. Install the New Oil Pump:
* Install the new oil pump gasket. Make sure the gasket is properly seated.
* Carefully install the new oil pump, aligning it with the mounting holes.
* Tighten the oil pump bolts to the specified torque. Refer to your service manual for exact torque values.
* Install the new pickup tube and gasket.
7. Reassemble the Engine: Reinstall all components removed in step 3, paying close attention to the order and torque specifications. If you removed the timing chain cover, this is a critical step to do precisely.
8. Refill with Oil: Add the correct amount and type of oil. Check your owner's manual for the proper oil type and quantity.
9. Start the Engine: Start the engine and carefully check for leaks. Check the oil pressure gauge.
Important Considerations:
* Timing Chain: If you remove the timing chain cover, be meticulous in marking its position before removal and ensuring its correct realignment upon reassembly. Incorrect alignment can cause catastrophic engine damage.
* Torque Specifications: Adhering to the precise torque specifications for all bolts is absolutely crucial. Using a torque wrench is non-negotiable.
* Gaskets and Seals: Replace all gaskets and seals during reassembly. Reusing old gaskets can lead to leaks.
* Cleanliness: Maintain a clean work area to prevent dirt from contaminating the engine.
This is a complex repair. Again, if you're not comfortable performing this task, take your vehicle to a qualified mechanic. Improperly performed, this repair can result in significant engine damage, leading to costly repairs or even engine failure. A professional will have the expertise and tools to do the job correctly and safely.
