The 1950 Chevy Fleetline is a classic car that enthusiasts admire for its timeless design and reliable engineering. One of the key components of this vehicle is the inline 6 motor, specifically the 235 cubic inch engine, which was known for its durability and performance. If you own a 1950 Chevy Fleetline and are experiencing issues with the clutch, this guide will walk you through the process of replacing the clutch in your inline 6 motor.
1. Introduction to the Chevy 235 Inline 6 Motor
The 1950 Chevy Fleetline came equipped with a 235 cubic inch inline 6 engine, which was an upgrade from the earlier 216 engine. Known for its robust performance and reliability, the 235 became a favorite among Chevy enthusiasts. This engine’s power delivery made it an ideal choice for the Fleetline, but like any mechanical component, the clutch will wear out over time and need to be replaced.
2. Symptoms of a Failing Clutch
A clutch is designed to engage and disengage the power from the engine to the transmission. If your Chevy Fleetline is showing any of the following signs, it may be time for a clutch replacement:
- Slipping Clutch: The engine revs but the vehicle doesn’t accelerate as it should.
- Difficulty Shifting Gears: You may hear grinding noises or feel resistance when changing gears.
- Soft or Spongy Clutch Pedal: The clutch pedal feels soft, or there is an inconsistent clutch engagement.
- Burning Smell: A burning odor can indicate that the clutch is slipping or overheating.
3. Tools and Materials Needed for Clutch Replacement
Before you start the clutch replacement process, ensure that you have the necessary tools and materials:
- New clutch kit (including clutch disc, pressure plate, and release bearing)
- Clutch alignment tool
- Socket wrench set
- Screwdrivers
- Torque wrench
- Floor jack and jack stands
- Transmission jack (optional but recommended)
- Penetrating oil (for stubborn bolts)
- Transmission fluid
- Clutch grease
4. Preparing Your Chevy Fleetline for Clutch Replacement
Replacing the clutch on a 1950 Chevy Fleetline requires careful preparation to ensure the job is done correctly. Start by parking your car on a flat surface and ensuring the emergency brake is engaged. Place the car on jack stands, giving you enough clearance to work underneath. Disconnect the battery to avoid any electrical issues during the process.
5. Step-by-Step Clutch Replacement Process
5.1 Disconnecting the Battery
Before you begin, disconnect the negative terminal of the battery to prevent any electrical shocks or accidental starts while you’re working on the clutch.
5.2 Removing the Driveshaft
To access the clutch, you’ll need to remove the driveshaft. Start by unbolting the U-joints that connect the driveshaft to the rear differential. Once removed, slide the driveshaft out of the transmission.
5.3 Accessing the Clutch and Flywheel
Next, remove the transmission bolts to free the transmission from the bellhousing. Use a transmission jack to carefully lower the transmission. Once the transmission is out, you’ll have access to the clutch assembly. Remove the pressure plate bolts, and then take out the pressure plate and clutch disc. Inspect the flywheel for any damage and resurface or replace it if necessary.
5.4 Inspecting the Clutch Components
With the old clutch removed, inspect the pressure plate, clutch disc, and release bearing. If they are worn or damaged, replace them with new components from your clutch kit. It’s important to ensure that all parts are in good condition to avoid premature clutch failure.
5.5 Installing the New Clutch
Using a clutch alignment tool, position the new clutch disc and pressure plate against the flywheel. Bolt the pressure plate into place, ensuring that it is evenly tightened. Remove the alignment tool once the clutch is properly seated. Install the new release bearing and ensure it is properly greased.
6. Torque Specifications for Clutch Components
When reassembling the clutch, it’s critical to tighten the bolts to the manufacturer-recommended torque specifications to ensure proper performance. Refer to your service manual for the correct torque values for your Chevy Fleetline’s clutch and flywheel bolts.
7. Reassembling Your Chevy Fleetline
With the new clutch installed, it’s time to reassemble the transmission. Carefully lift the transmission using the transmission jack and align it with the bellhousing. Reattach the transmission to the bellhousing and tighten the bolts. Reinstall the driveshaft, reconnect the U-joints, and fill the transmission with fresh fluid if needed.
8. Testing the New Clutch
After reassembling your Chevy Fleetline, reconnect the battery and start the engine. Press the clutch pedal several times to ensure it feels firm and engages smoothly. Test drive the vehicle to confirm that the clutch operates properly without slipping or causing any unusual noises.
9. Maintenance Tips for Extending the Life of Your Clutch
To extend the lifespan of your new clutch, follow these maintenance tips:
- Avoid Riding the Clutch: Keep your foot off the clutch pedal when not shifting gears.
- Shift Smoothly: Avoid harsh or aggressive gear changes.
- Regular Inspections: Periodically check the clutch pedal, fluid levels, and linkage for signs of wear.
10. Conclusion
Replacing the clutch in a 1950 Chevy Fleetline with an inline 6 motor 235 may seem like a challenging task, but with the right tools and a methodical approach, you can get the job done successfully. By following this guide, you’ll ensure your Fleetline continues to perform smoothly for years to come, preserving its legacy as a classic American automobile.
