Rhd Conversion Kit Steering System Modifications


Rhd Conversion Kit Steering System Modifications

So, you've taken the plunge and converted your vehicle to Right Hand Drive (RHD). Congratulations! It's a rewarding project, but as with any major modification, the steering system can sometimes present unique challenges. We're here to help you navigate those potential bumps in the road and keep you steering straight.

Common Steering System Issues After RHD Conversion

Let's be honest, a smooth RHD conversion isn't always guaranteed. Here are some of the most common steering-related problems we see in our shop after these conversions, along with potential solutions:

Steering Wheel Offset or Misalignment

Problem: One of the first things you might notice is that the steering wheel isn't perfectly centered when driving straight. It might be slightly off to the left or right. This can be subtle, but it can lead to uneven tire wear and an uncomfortable driving experience.

Solution: Start with a proper wheel alignment. A qualified alignment technician can adjust the toe, camber, and caster angles to compensate for any discrepancies introduced by the conversion. However, if the misalignment is significant even after a professional alignment, the issue could be related to the steering rack placement or the length of the steering linkage rods.

Practical Tip: Before taking it to the alignment shop, visually inspect the steering linkage rods (tie rods and potentially custom-made rods for the RHD conversion). Are they the same length? Are they properly adjusted? Small differences here can translate into noticeable steering wheel misalignment.

Approximate Cost: Wheel alignment typically ranges from $75 to $150. If custom steering linkage adjustments or replacements are needed, expect to add another $100 - $500 depending on the complexity of the work.

Steering Rack Binding or Sticking

Problem: A common complaint is that the steering feels tight, sticky, or jerky, especially at certain points in the turning radius. This could be due to several factors.

Solution:

  • Check for Obstructions: Carefully inspect the entire steering linkage, including the universal joints (U-joints) and any new components added during the conversion. Make sure nothing is binding or rubbing against other parts of the vehicle, such as the exhaust system, chassis, or wiring harnesses. Even slight contact can cause significant resistance.
  • Inspect the Steering Rack: The steering rack itself could be the culprit. If it wasn't properly inspected and lubricated during the conversion, internal corrosion or damage could be causing the binding. A rebuild or replacement might be necessary.
  • Power Steering Issues: If you have power steering, check the fluid level and condition. Low fluid or contaminated fluid can lead to poor performance and binding. Also, inspect the power steering pump for leaks or unusual noises.

Practical Tip: When inspecting the U-joints, look for signs of rust, corrosion, or excessive play. These joints are crucial for smooth steering, and any binding here will be immediately noticeable.

Tools Needed: Wrenches, sockets, penetrating oil, jack and jack stands, possibly a U-joint puller.

Approximate Cost: Power steering fluid flush: $80 - $150. Steering rack rebuild (if possible): $300 - $600. Steering rack replacement: $500 - $1200 (depending on the vehicle and parts availability).

Excessive Steering Play or Looseness

Problem: You turn the steering wheel, but the wheels don't respond immediately. There's a noticeable "dead zone" or excessive play in the steering system. This can make the vehicle feel unstable and difficult to control.

Solution:

  • Check Tie Rod Ends and Ball Joints: These are common culprits for steering play. Have a mechanic inspect them for wear and tear. Any looseness in these components will translate to play in the steering wheel.
  • Inspect Steering Linkage Connections: Make sure all bolts and fasteners in the steering linkage are properly tightened. Loose connections can introduce play.
  • Steering Rack Adjustment: Some steering racks have an adjustment screw that can be used to reduce play. However, be careful not to overtighten it, as this can cause binding. Consult a service manual for your specific vehicle model.

Practical Tip: Have someone gently rock the steering wheel back and forth while you visually inspect the tie rod ends and ball joints. Look for any movement or play in the joints themselves. Also, listen for any clunking or rattling noises.

Approximate Cost: Tie rod end replacement: $100 - $300 per side. Ball joint replacement: $150 - $400 per side.

Power Steering Pump Noise or Failure

Problem: The power steering pump whines, groans, or makes other unusual noises. Steering effort might also be increased, making it harder to turn the wheel, especially at low speeds.

Solution:

  • Check Power Steering Fluid Level: Low fluid is a common cause of pump noise. Top up the fluid to the correct level, but also investigate why the fluid is low in the first place. Leaks are a common problem.
  • Inspect Power Steering Hoses: Look for leaks, cracks, or kinks in the power steering hoses. Replace any damaged hoses.
  • Power Steering Pump Replacement: If the pump is making excessive noise or is not providing adequate power assist, it might need to be replaced.

Practical Tip: When replacing the power steering pump, it's a good idea to flush the entire power steering system to remove any contaminants that could damage the new pump. Use the correct type of power steering fluid for your vehicle.

Approximate Cost: Power steering hose replacement: $50 - $200 per hose. Power steering pump replacement: $200 - $600 (depending on the pump and labor costs).

Steering Wheel Vibration or Shimmy

Problem: You feel a vibration or shimmy in the steering wheel, especially at certain speeds. This can be caused by several factors, including:

Solution:

  • Tire Imbalance: Have your tires balanced by a professional.
  • Wheel Runout: Check your wheels for runout (wobbling). Bent or damaged wheels can cause vibrations.
  • Suspension Issues: Worn suspension components, such as control arm bushings or struts, can also contribute to steering wheel vibration.

Practical Tip: Before suspecting the RHD conversion, remember that tire and wheel issues are the most common cause of vibrations. Start there before diving into more complex RHD-related troubleshooting.

Approximate Cost: Tire balancing: $10 - $25 per tire. Wheel repair or replacement: Varies widely depending on the wheel type and damage.

Specific RHD Conversion Considerations

Beyond the general steering issues, some problems are more specific to RHD conversions:

Custom Steering Linkage Quality

Issue: Many RHD conversions require custom-made steering linkage components. The quality of these components is crucial. Poorly made or improperly designed linkages can lead to binding, play, and even failure.

Solution: If you suspect the steering linkage is the problem, carefully inspect it for any signs of poor workmanship, such as sloppy welds, incorrect dimensions, or weak materials. Compare the custom linkage to the original components (if possible) to ensure proper geometry and strength. Consider upgrading to higher-quality aftermarket linkage if necessary.

Practical Tip: Check that all custom fabricated components are designed with safety in mind. Check welds for penetration, and ensure all bends are smooth without kinks.

Firewall Modifications

Issue: RHD conversions often require modifications to the firewall to accommodate the steering column and other components. If these modifications are not done correctly, they can weaken the firewall and affect the structural integrity of the vehicle.

Solution: Ensure that all firewall modifications are performed by a qualified professional using proper welding techniques and reinforcement methods. Inspect the firewall for any signs of cracks or distortion. If necessary, add additional reinforcement to the firewall to restore its structural integrity.

Practical Tip: Document all changes to the firewall, take photos and notes, so that repairs later are made correctly.

Conclusion

Addressing steering system issues after an RHD conversion can be challenging, but with a methodical approach and a good understanding of the potential problems, you can get your vehicle steering smoothly and safely. Remember to prioritize safety and consult with qualified professionals if you're unsure about any aspect of the repair. A properly functioning steering system is paramount for a safe and enjoyable driving experience. Good luck, and happy motoring!

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