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- MITSUBISHI 3000GT SL GEAR OIL REPLACEMENT regular maintenance.
- I Blew Up my 500WHP Mitsubishi 3000GT After 10 YEARS! | RIP '99 VR4 Well… one of my favorite cars in my collection has a blown motor. The 1999 Mitsubishi 3000GT VR4 was my dream car growing …
Repairing the gearbox output flange on a Mitsubishi 3000GT is a task that requires a good deal of mechanical knowledge, a variety of tools, and, of course, a healthy dose of patience. Let’s dive into this detailed process step-by-step.
### Tools and Materials Needed
Before we get started, let’s make sure you have all the tools and materials you will need for this job:
1. **Socket Set**: A comprehensive socket set, including metric sizes, is essential. You’ll likely need sizes like 10mm, 12mm, and 14mm.
2. **Torque Wrench**: Important for ensuring that bolts are tightened to the manufacturer’s specifications.
3. **Ratchet and Extensions**: To give you the reach you need in tight areas.
4. **Pliers**: Needle-nose pliers can be helpful for clips and small parts.
5. **Flathead and Phillips Screwdrivers**: For removing any covers or securing components.
6. **Pry Bar**: A small pry bar can help in removing stubborn parts that may be stuck.
7. **Gasket Scraper or Razor Blade**: For cleaning old gasket material off surfaces.
8. **Brake Cleaner**: For cleaning surfaces and removing grease or oil.
9. **Replacement Gaskets**: It’s always a good idea to have new gaskets on hand for reassembly.
10. **Sealant**: If required, a high-quality RTV sealant can be used for additional sealing.
11. **Jack and Jack Stands**: For safely elevating the vehicle.
12. **Creeper**: To help you slide under the vehicle comfortably.
13. **Magnetic Tray or Bowl**: For keeping bolts and small parts organized.
### Preparation
1. **Safety First**: Ensure you’re working in a well-ventilated area and wear safety glasses and gloves.
2. **Raise the Vehicle**: Use the jack to lift the vehicle and place it securely on jack stands. This is crucial for your safety, as you will be working underneath the car.
3. **Disconnect the Battery**: Before starting any electrical work, it’s always best practice to disconnect the negative terminal of the battery to prevent any electrical shorts or shocks.
### Steps to Repair the Gearbox Output Flange
#### Step 1: Remove the Driveshaft
1. **Locate the Driveshaft**: Follow the driveshaft from the rear differential to the gearbox. The driveshaft is typically held in place with bolts at both ends.
2. **Remove the Bolts**: Using your socket set and ratchet, remove the bolts that secure the driveshaft to the output flange. Depending on the model, you may need to remove a universal joint or a center support bearing if present.
3. **Lower the Driveshaft**: Carefully lower the driveshaft and set it aside on a clean surface to avoid any damage.
#### Step 2: access the Output Flange
1. **Inspect the Area**: Now that the driveshaft is out of the way, inspect the output flange area for any visible damage or leaks.
2. **Remove the Output Flange Bolts**: Using the appropriate socket, remove the bolts that secure the output flange to the gearbox. Keep these bolts organized in your magnetic tray to avoid losing any.
3. **Pull the Flange Off**: Gently pull the output flange off the gearbox. If it’s stuck, you may need to use a pry bar carefully to leverage it off without damaging the gearbox casing.
#### Step 3: Inspect and replace Components
1. **Check for Damage**: Inspect the flange for any cracks or signs of wear. Also, check the sealing surface for any damage that could cause leaks.
2. **Replace the Seal**: If the output flange has a seal, gently pry it out using a flathead screwdriver. Ensure you clean the area thoroughly before installing a new seal.
3. **Install New Gasket or Sealant**: If your model requires a gasket, place the new gasket onto the gearbox. If sealant is used, apply a thin, even layer around the flange area.
#### Step 4: Reinstall the Output Flange
1. **Position the Flange**: Carefully position the new or repaired output flange back onto the gearbox.
2. **Reattach the Bolts**: 
Hand-tighten the bolts first to ensure everything is aligned, and then use the torque wrench to tighten them to the manufacturer’s specifications. This step is critical to avoid damaging the threads.
#### Step 5: Reattach the Driveshaft
1. **Position the Driveshaft**: Reattach the driveshaft to the output flange. Make sure it’s aligned correctly, particularly with any universal joints.
2. **Secure the Bolts**: Tighten the bolts that hold the driveshaft in place, again using the torque wrench for proper specification.
#### Step 6: Final Checks
1. **Reconnect the Battery**: Once everything is reassembled, reconnect the negative terminal of the battery.
2. **Lower the Vehicle**: Carefully lower the vehicle back to the ground.
3. **Test Drive**: Once the repair is complete, take your vehicle for a short test drive to ensure everything is functioning correctly and listen for any unusual noises that could indicate a problem.
### Conclusion
And there you have it! You’ve successfully repaired the gearbox output flange on a Mitsubishi 3000GT. Remember, taking your time and being meticulous in each step is key to ensuring a quality repair. If at any point you feel unsure, consulting a professional mechanic or referring to a service manual specific to your vehicle model can provide additional guidance. Happy wrenching!
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