To properly adjust the torsion bar suspension on a classic Chrysler, first gather essential tools such as a floor jack, jack stands, socket set, torque wrench, and measuring tape. Understand that the torsion bar's twisting mechanism influences ride height and handling. Park on flat ground, engage the parking brake, lift the vehicle with a hydraulic jack, and secure it with jack stands. Locate adjustment points on the lower control arms; use the threaded bolt to tweak torsion bar tension. Measure initial and adjusted ride heights for precision. Testing post-adjustment ensures proper balance and performance, revealing more nuances in the process.
Gather Necessary Tools
Before adjusting the torsion bar suspension on a classic Chrysler, collect these tools:
- Floor Jack and Jack Stands: Lift the car safely.
- Socket Set with Breaker Bar: Loosen and tighten bolts and nuts.
- Torque Wrench: Follow the recommended torque settings.
- Penetrating Oil: Help with rusted bolts.
- Measuring Tape or Caliper: Check ride height on both sides.
- Creeper Seat or Mechanic's Creeper: Work comfortably under the car.
- Service Manual for Your Chrysler Model: Check diagrams and instructions.
Each tool helps you work safely and keep your Chrysler running smoothly.
Understand Torsion Bar Function
Many old Chrysler cars use a type of suspension called torsion bar suspension. This system is tough and can be adjusted easily. Torsion bars help the car ride smoothly by twisting to take in bumps on the road. They work differently from regular coil springs and have their own pros and cons.
Torsion bars are long rods made of strong steel. They twist to handle bumps when the car's wheels hit rough spots. This twisting takes in the energy, helping the car stay smooth and steady. You can change the torsion bar to adjust how high or low the car sits and how it handles. This is great for those who want to tweak their old Chrysler cars like the Plymouth Barracuda or Dodge Charger.
Unlike coil springs, torsion bars can be adjusted more and don't wear out as fast. But they need to be set up just right to work well. Knowing how torsion bars work helps keep these old cars running well and feeling just as they did when new.
Prepare the Vehicle
Get the Car Ready
First, park your classic Chrysler on flat ground. This stops it from moving while you work. Put the parking brake on tight. Place blocks behind the back wheels to keep it steady. This way, the car won't roll and you'll have a safe spot to work.
Next, use a hydraulic jack to lift the front of the car. Put the jack under a strong spot like the frame or the spot marked for jacks. This prevents damage to the car's underside.
Once the car is up, slide jack stands under the frame. Make sure they can hold the Chrysler's weight and are placed evenly.
Check that the car sits firmly on the jack stands. Look over the torsion bar and its parts for any rust or wear.
Have your tools ready, like a socket wrench and tape measure, to make the job easier. Preparing the car right makes adjusting the torsion bar go smoothly and safely for both the car and you.
Locate Adjustment Points
When you're working on the torsion bar suspension of a classic Chrysler, you need to find the right adjustment spots. Start by checking the car's service manual. It has diagrams and details to help you spot these areas.
Usually, you'll find the adjustment points close to the lower control arms, where the torsion bars connect to the frame. These spots often have bolts or hex heads you can turn to tweak the suspension.
For models like the Dodge Dart or Plymouth Barracuda, accessing these spots is pretty straightforward. You'll often see a threaded bolt going through a crossmember. This bolt adjusts the tension on the torsion bar using a lever or key. Turn the bolt clockwise to add tension; turn it counterclockwise to reduce tension.
Check the bolts and other parts for any wear or rust, as these can affect how the car handles. Use a good quality torque wrench to make sure your adjustments match what the manufacturer recommends.
This careful approach helps keep the ride smooth and the suspension in good shape, preserving the classic feel of the car.
Adjust Torsion Bar Height
Changing how high the torsion bar sits on a Chrysler can make the ride smoother. Here's how to do it:
- Find the Bolt: Look near the lower control arm. This bolt changes the height.
- Measure the Height: Use a tape measure from the ground to the wheel arch. Write down the height.
- Turn the Bolt: Turn it right to lift the car, left to lower it. Make small changes each time.
- Keep it Even: Make sure both sides of the car are the same height.
- Think About Weight: Consider any extra weight the car usually carries.
Always work on a flat surface and use jack stands for safety.
Test and Fine-Tune Adjustments
After adjusting the height, check the torsion bar suspension carefully.
Take the car for a drive on different roads to see how it handles and rides. Listen for any strange sounds, as they might mean the adjustment is off.
Use a digital inclinometer to measure the angle of the lower control arm. The right angle should match what the car maker recommends, usually between 20 to 45 degrees.
If it's not right, adjust the torsion bars again. Also, get a wheel alignment to make sure the camber, caster, and toe-in are correct. Bad alignment can cause tires to wear unevenly and affect handling.
Look at measurements before and after adjustments to see if things have improved or if problems remain.
Studies show that properly adjusted torsion bars can boost cornering stability by 15%.
If issues continue, consider changing worn bushings or upgrading to better torsion bars. This can improve how the car drives and lasts longer, keeping your classic Chrysler in top shape.
People Also Ask
What Safety Precautions Should I Take When Adjusting Torsion Bars?
When working with torsion bars, make sure the car is safely lifted with jack stands. Wear gloves and safety glasses to protect yourself. Be very careful when letting the tension go, so you don't get hurt. Check the car's manual for safety tips.
Can Adjusting the Torsion Bar Affect the Vehicle's Alignment?
Changing the torsion bar can change your car's alignment. When the suspension height changes, it can make the tires wear unevenly and cause steering problems. It's a good idea to have a professional check and fix the alignment after adjusting the torsion bar.
How Do I Identify Worn or Damaged Torsion Bars?
To know if torsion bars are worn or damaged, check if the car's ride height looks uneven, tires wear out unevenly, or you hear strange noises when driving. Look for rust, cracks, or bends. It's best to have a professional check it.
Is Professional Assistance Recommended for Torsion Bar Adjustments?
Yes, it's a good idea to get a professional to adjust torsion bars. They know how to do it safely and correctly. This helps your car work better and avoids any damage or problems that might happen if you try it yourself.
How Often Should Torsion Bar Adjustments Be Checked or Maintained?
Check torsion bar adjustments when you take your car for regular maintenance. Look at them if your car feels uneven, makes strange noises, or handles poorly. It's a good idea to check them once a year or every 12,000 miles to keep your car safe.