Tools:
- Wrench set
- Pliers
- Flat-head screwdriver
- Pry bar
- Socket set
- Torque wrench
- Seal puller
- Seal installer
- Oil pan
Materials:
- New front crankshaft seal
- Oil
- Degreaser
- Rags
- Safety goggles
- Gloves
Procedure:
1. Vehicle Preparation:
- Park the vehicle on level ground and apply the parking brake.
- Turn off the engine and allow it to cool down completely.
- Disconnect the negative terminal on the car battery to depower the vehicle's electrical system.
2. Remove Lower Engine Cover:
- Locate the lower engine cover and remove it using a wrench or socket set.
3. Remove Timing Belt:
- Remove the timing belt cover.
- Follow the manufacturer's instructions or refer to a repair manual to remove the timing belt. This typically involves removing the crankshaft pulley and slackening the timing belt tensioner.
4. Clean and Inspect Seal Area:
- Clean the area around the front crankshaft seal thoroughly using a degreaser and a rag. This ensures that the new seal will have a clean surface to adhere to.
- Inspect the seal area for any damage or wear, and replace any worn or damaged components as needed.
5. Remove the Old Seal:
- Use a seal puller to pry out the old front crankshaft seal from its housing gently. Be careful not to damage the crankshaft surface during this process.
6. Prepare for New Seal Installation:
- Clean the seal seat on the crankshaft and the seal housing to ensure a proper seal.
- Apply a thin coat of oil to the lip of the new seal. This helps with the initial startup and lubrication.
7. Install New Seal:
- Place the new front crankshaft seal into its housing, ensuring it is properly seated.
- Use a seal installer to drive the new seal into place. Make sure the seal is flush with the seal housing and evenly seated.
8. Reinstall Timing Belt:
- Reinstall the timing belt according to the manufacturer's instructions or by referring to a repair manual. This includes reattaching the timing belt tensioner and reinstalling the crankshaft pulley.
9. Reinstall Lower Engine Cover:
- Reinstall the lower engine cover that was removed earlier.
10. Refill Engine Oil:
- Remove the oil drain plug and drain the old engine oil into an oil pan.
- Replace the oil drain plug and add new engine oil according to the manufacturer's specified volume and type.
11. Battery Reconnect:
- Reconnect the negative terminal of the car battery.
12. Functionality Check:
- Start the engine and let it run for a few minutes.
- Check for any signs of oil leaks around the front crankshaft seal area.
- If there are no leaks, turn off the engine and inspect the oil level to ensure it's at the proper level.
The replacement of the front crankshaft seal is now complete. Remember, it's essential to follow all the steps carefully and to refer to the specific service manual for your Mitsubishi Mirage model to ensure accurate installation. If you encounter any difficulties or uncertainties during the process, it's advisable to consult a professional mechanic for assistance.
