To begin, let's discuss the parts and tools needed for this job. According to Brook's Airhead Garage, the following parts were used:
- Rear main seal
- Oil pump cover gasket
- O-ring for oil pump cover
- Clutch kit
In addition, the following tools were necessary for this job:
- Socket set
- Torx bits
- Screwdrivers
- Pliers
- Clutch alignment tool
- Seal installer tool
Now, let's dive into the procedure for replacing these parts and refurbishing the clutch. We will be referencing the write-ups provided by Brook's Airhead Garage.
Replacing the Rear Main Seal:
1. Remove the clutch assembly.
2. Remove the flywheel.
3. Remove the old rear main seal.
4. Install the new rear main seal using a seal installer tool.
5. Reinstall the flywheel and clutch assembly.
Refurbishing the Clutch:
1. Remove the clutch assembly.
2. Inspect the clutch disc and pressure plate for wear and damage.
3. Clean the clutch disc and pressure plate with brake cleaner.
4. Install the new clutch disc and pressure plate.
5. Install the clutch alignment tool to align the clutch assembly.
6. Reinstall the clutch assembly.
Replacing the Oil Pump Cover, O-ring, and Gasket:
1. Remove the oil filter cover and oil filter.
2. Remove the oil pump cover, being careful not to damage the O-ring or oil pump cover groove seal screw.
3. Replace the O-ring and oil pump cover groove seal screw.
4. Install the new oil pump cover gasket.
5. Reinstall the oil pump cover and oil filter cover.
In conclusion, the process of replacing the rear main seal, oil pump cover, and O-ring, as well as refurbishing the clutch on a 1975 BMW R75/6 motorcycle, requires attention to detail and the proper tools. By following the procedure outlined above and using the parts and tools recommended by Brook's Airhead Garage, you can ensure that your motorcycle runs smoothly and reliably.