Putting Manual Transmission in an Automatic Car: Toyota 93
Introduction
Manual transmission offers drivers a more engaging and responsive driving experience, but not all vehicles come equipped with this option. For car owners who crave the thrill of shifting gears, the possibility of retrofitting a manual transmission into their automatic car arises. This guide will provide a comprehensive walkthrough of the process of replacing an automatic transmission with a manual one, specifically for a Toyota 93 model.
Parts and Tools Required
Before embarking on this project, it’s essential to gather the necessary parts and tools:
– Manual transmission: The cornerstone of this conversion, obtained from a compatible Toyota 93 model with a manual transmission.
– Clutch assembly: Includes the clutch disc, pressure plate, and release bearing.
– Flywheel: Matches the type of manual transmission being installed.
– Pedal assembly: Consists of the clutch pedal, brake pedal, and gas pedal.
– Shifter assembly: Connects to the manual transmission and allows for gear selection.
– Driveline: May require modification or replacement to accommodate the manual transmission.
– Transmission crossmember: Supports the manual transmission.
– Wiring harness: Connects the manual transmission to the vehicle’s electronic systems.
– Various bolts, nuts, and fasteners: Secure the components of the manual transmission system.
– Tools: Includes wrenches, sockets, screwdrivers, jack stands, and fluid drain pans.
Step-by-Step Guide
1. Preparation:
– Disconnect the vehicle’s battery.
– Drain the automatic transmission fluid.
– Remove the front wheels, brake calipers, and rotors.
2. Removal of Automatic Transmission:
– Unbolt the torque converter from the flywheel.
– Disconnect the transmission lines and electrical connectors.
– Support the transmission with a jack.
– Remove the transmission mount bolts and lower the transmission.
3. Installation of Manual Transmission:
– Mount the manual transmission onto the engine.
– Install the flywheel onto the crankshaft.
– Attach the clutch assembly to the flywheel and transmission input shaft.
– Install the pedal assembly and connect it to the clutch master cylinder.
– Connect the shifter assembly to the manual transmission.
– Modify the driveshaft as necessary to fit the manual transmission.
4. Crossmember and Mount Installation:
– Position the transmission crossmember and secure it to the vehicle’s frame.
– Install the transmission mounts and tighten the bolts.
5. Wiring and Fluid:
– Connect the wiring harness to the manual transmission and other components.
– Fill the manual transmission with the appropriate gear oil.
6. Brake System Modification:
– Remove the brake booster and install a manual brake master cylinder.
– Connect the brake lines and bleed the system.
7. Reassembly:
– Install the front wheels, brake calipers, and rotors.
– Reconnect the battery.
8. Tuning and Adjustments:
– Adjust the clutch pedal height and tension.
– Test drive the vehicle and ensure proper gear engagement and smooth shifting.
Considerations and Cautions
1. Compatibility: Ensure that the manual transmission, clutch assembly, flywheel, and other components are compatible with the Toyota 93 model.
2. Complexity: This conversion involves a significant amount of mechanical work and requires a high level of technical expertise.
3. Cost: The parts, labor, and potential modifications can result in substantial expenses.
4. Fuel Economy: Manual transmissions offer slightly lower fuel economy compared to automatic transmissions.
5. Resale Value: Modifying a vehicle from automatic to manual transmission may affect its resale value.
Conclusion
Replacing an automatic transmission with a manual one in a Toyota 93 is a challenging but rewarding project for experienced mechanics. By meticulously following the steps outlined in this guide and considering the associated complexities and cautions, you can revitalize your vehicle with the exhilarating experience of manual transmission.
