Scalextric Car Restoration & Maintenance Guide

For many, the sight and sound of a Scalextric car evoke a wave of nostalgia, transporting us back to countless hours of thrilling races. However, over time, even the most beloved classic models can show their age, suffering from wear, tear, or the effects of prolonged storage. Dust, moisture, and material deterioration can all take their toll, leaving cars sluggish or even completely unresponsive. But fear not, for breathing new life into these miniature marvels is entirely possible, and often, surprisingly straightforward. This guide will walk you through the essential steps to maintain, restore, and even upgrade your classic Scalextric cars, ensuring they deliver maximum enjoyment for years to come.

Understanding the Guide Blade and Braid

At the heart of every Scalextric car's interaction with the track lies the guide blade and its accompanying braids. These crucial components are responsible for both steering the car and supplying it with electrical power. Understanding their function and maintaining them properly is fundamental to reliable performance.

What is the Guide Blade?

The guide blade is typically a small 'keel' that fits snugly into the track slot. Its primary role is to guide the car around the track layout, ensuring it follows the intended path. While most Scalextric cars use this keel-like design, smaller models like Micro Scalextric might use a simple pin for guidance.

What are the Braids?

Attached to the slot guide blade assembly, the braids are thin, conductive strips that make direct contact with the metal rails of the track. They act as electrical conduits, allowing power to flow from the track, through the braids, and into the car's internal components – powering the motor, lights, and any fitted digital chips. Due to constant friction with the track, braids are prone to wear and will eventually need replacing. However, with proper care, a set of braids can last for the car's lifetime.

Maintaining Your Braids for Optimal Performance

Regular maintenance is key to extending the life of your braids and ensuring consistent power delivery. Here are a few simple tips:

• Always clean them with a small stiff brush; an old toothbrush is ideal for this task.
• Ensure that the braids lie flat against the guide blade, rather than being angled downwards, which can impede smooth contact.
• Check that the braids are positioned in line with the track slot rails to ensure maximum electrical pickup.

Replacing the Guide Blade and Braid

Since 1990, Scalextric has employed an 'easy-fit' system for braid replacement, making the process incredibly simple for most cars. Typically, it involves a push-fit method, allowing for quick and hassle-free replacement when wear becomes evident.

The Journey of Restoration: Bringing Your Old Set Back to Life

Scalextric sets manufactured between 1960 and 1990 can sometimes be unreliable, particularly if they've been stored for extended periods. Issues such as corrosion from moisture, mould growth, dust accumulation, and plastic shrinkage can all affect performance. This comprehensive guide outlines straightforward steps to help restore your old set and get it running smoothly again.

Part 1: Ensuring Your Set is Complete

Before diving into restoration, confirm all necessary components are present. If you have an original boxed set, check against the catalogue or manual. Otherwise, refer to this general list:

• Power supply
• Hand controllers (at least two)
• Cars (at least two)
• Track pieces (a good selection of straights and corners)
• Barriers
• Track supports (for bridges and banked corners)

Make a list of any missing parts. Also, inspect each item for visible damage; set aside unusable parts for replacement.

Part 2: Checking for Damaged Components

With your components identified, it's time for a detailed inspection.

Power Supply and Controllers Inspection

• Power Supply: Check for missing or incorrect mains plugs, exposed wiring, or damaged insulation. If mains-side issues are present, consult a qualified electrician. On the low-voltage side, ensure connection studs and thumbscrews are intact. Test by connecting a 21W car bulb to the output; it should light brightly and steadily. A low hum is normal, but excessive noise may indicate a faulty transformer.
• Hand Controllers: Inspect the casing for cracks and ensure the operating lever moves smoothly and returns to off. Check wires for damage and plugs for integrity. Test by connecting to a working power supply with a 5W car bulb as output; the bulb should remain off at zero and gradually brighten with throttle.

Track Inspection

• Check all plastic connection lugs for integrity.
• Look for rust or corrosion on steel rails. Light rust can be removed with a polishing pad; deep corrosion may require replacement.
• Ensure conductor rails wrap properly around plastic end lugs for connectivity.
• Verify the track lies flat; older pieces can bow.
• For special sections like crossovers, check that small connecting wires underneath are intact.

Car Inspection

Common issues to look for:

• Hardened or cracked tyres
• Loose drive wheel hubs
• Missing external body parts
• Missing or worn-out guide blade and pickup braids
• Split motor pinion gears (common in 1970s-1990s cars)
• Damaged wiring
• Stiff or binding drive gears

Turn driven wheels by hand; they should rotate freely. Test the car by placing it on a powered track section (wheels slightly lifted). At low power, the motor should hum and wheels turn slowly. At one-third throttle, wheels should rotate faster. Listen for clicking sounds (gear issues) or hesitation when pivoting (wiring issues).

Part 3: Bringing Your Track Back to Life

Older Scalextric tracks often suffer from dull rails, warping, narrowing slots, and dirt buildup.

Cleaning the Track Surface

For light dust, a damp cloth suffices. For grime, use an old nail brush with warm, soapy water (washing-up liquid helps). Dry immediately to prevent rust on the metal rails.

Fixing Warped or Bowed Track Sections

Gently bend warped sections back into shape to restore a flat surface. This may cause rails to buckle into the slot, which is normal and fixable next.

Widening a Narrowed Slot

If the slot narrows due to loose rail crimping, tighten the crimping. For narrowing at track ends or misaligned slots, gently push back into shape with a flat-blade screwdriver.

Polishing the Metal Rails

Restore rail shine with a track polishing pad. Clean, smooth rails ensure better electrical conductivity, improving car speed and reducing braid wear. Light corrosion can be removed, but deep pitting may be harder to fix.

Part 4: Checking the Power Supply and Controllers

Re-inspect these vital components for any remaining faults.

Inspecting the Power Supply

Check for visible damage like missing plugs, exposed wiring, or frayed insulation. Consult an electrician for mains-side concerns. Test with a 21W car bulb; it should light consistently. A low hum is normal, but excessive noise indicates a potential transformer fault, warranting replacement. Older models may have a manual reset button; test by briefly shorting output terminals (protection should trip, reset should restore power). Newer units auto-reset.

Checking the Hand Controllers

Inspect casing for damage, and ensure the trigger moves smoothly and returns to 'off'. Check wiring for fraying and plugs for integrity. Test by connecting to a working power supply with a 5W car bulb; the bulb should remain off at zero and gradually brighten to full with throttle.

Part 5: Bringing Your Scalextric Cars Back to Life

This is where your cars truly get their second wind.

Step 1: Disassembling the Car

Carefully take the car apart. Some use screws, others clips. Be cautious, as some models are tricky to open.

Step 2: Cleaning the Parts

Wash all plastic components (body, window, chassis, wheels) in warm soapy water using a nail brush. Be aware that decals might be removed. Handle older, brittle plastic with care. Repeat cleaning for white, powdery mould (common in 1960s models). Inspect for damage and source replacements if needed.

Step 3: Checking and Servicing the Motor

Apply a small drop of lubricating oil to the motor bearings. Test at full speed briefly to check bearings, armature windings, and brushes. Replace if performance is poor. Some open-frame RX and Formula Junior motors can be repaired.

Step 4: Inspecting and Replacing Wiring

Examine motor wiring and fix any damage. Replace worn or questionable wiring; faulty wiring can ruin performance.

Step 5: Checking the Pinion Gear

For cars from the late 1970s to late 1990s, check the white plastic motor pinion gear for cracks or looseness. Replace if unsure.

Step 6: Checking the Electronics

If your car has lights, test them. Replace broken bulbs or polarity-sensitive LEDs (ensure correct installation).

Step 7: Reassembling the Axles and Wheels

Reinstall bearings, spacers, and wheels onto axles. Use a small drop of super glue for loose wheels. Fit axles back onto the chassis, ensuring they spin freely. For the rear axle, ensure the large flat disc of the contrate gear is to the right of centre when viewed from underneath; otherwise, the car will run in reverse.

Step 8: Reinstalling the Motor and Electrical Components

Attach the motor and other electrical parts. Use new pick-up braids and fresh pick-up pins (if applicable). Old or crimped pins can cause electrical issues.

Step 9: Replacing the Tyres and Final Checks

Fit new rear tyres unless existing ones are excellent. Front tyres can be reused if good. Apply oil to all bearings and gears. Check gears for smooth movement. Test the car on the track; if it runs in reverse, swap wires at the guide or motor.

Step 10: Final Assembly

Reattach all body parts. Run through the Part 2 checks again. Test for good tyre grip. Fit any decorative pieces like bumpers or spoilers.

Upgrading Your Classic Scalextric Cars

Once restored, consider upgrades to enhance performance. Upgrades fall into reversible and non-reversible categories.

Reversible Upgrades

These allow you to revert to original condition if desired.

• High-Performance Tyres: Upgrade to Max Grip series tyres for significantly improved traction, braking, and cornering.
• More Powerful Motor: For RX open-frame motors, use an adapter kit for a Johnson motor. If already Johnson, consider a Mabuchi motor. For existing Mabuchi, upgrade to a newer, more powerful version.
• Adding Weight: Placing weight (e.g., Blu Tack with steel ball bearings) over the rear wheels increases traction and reduces wheel spin, improving stability in corners.
• Wider Axles: Older cars (1970s-1980s) with floating front axles can tip in corners. Wider axles improve stability and allow higher cornering speeds.

Non-Reversible Upgrades

These modifications are permanent and can affect the car's value, so proceed with caution.

• Adding a Magnatraction Magnet: Installing a magnet (ideally just in front of the rear axle) boosts grip instantly. Be mindful of increased rolling resistance. Best with Mabuchi motors.
• Lowering the Guide Height: Lowers the car's centre of gravity for better cornering stability. Not possible on all models.
• Fixing the Front Axle Height: For flat track racing, fixing a floating front axle can improve cornering stability. Ensure front wheels still touch while maintaining weight on the guide blade.

Frequently Asked Questions About Scalextric Restoration

Can I replace a guide blade on a Scalextric car?

Yes, absolutely. For most Scalextric cars manufactured since 1990, replacing the guide blade and its accompanying braids is a simple push-fit process thanks to the 'easy-fit' system. Older cars might require a bit more finesse, but replacement parts are generally available.

How can I improve a classic Scalextric car's performance?

Improving performance involves a multi-faceted approach. Start with thorough cleaning and maintenance as outlined in this guide. Then, consider reversible upgrades like high-performance tyres, a more powerful motor (with adapter kits if needed), adding strategic weight for stability, and fitting wider axles for better cornering. For more advanced tuning, non-reversible modifications like adding a magnatraction magnet or lowering the guide height can offer further gains.

What is a Scalextric car restoration?

A Scalextric car restoration is the process of bringing an old, worn, or damaged Scalextric car back to its original or near-original condition. This involves a series of steps including disassembling, thorough cleaning of all components, servicing or replacing the motor, checking and re-wiring electrical connections, replacing worn parts like tyres, guide blades, and braids, and finally, reassembling the car. It can range from a simple repair to a full, meticulous overhaul to restore both functionality and aesthetic appeal.

Do Scalextric images really help a collector/restorer?

Yes, images are incredibly helpful for collectors and restorers. They provide visual references for how a car should look, detailing correct part placement, wiring routes, and paint schemes. For someone attempting to restore a car, especially one that is missing parts or has been incorrectly assembled, clear photos of a working, original model are invaluable for accurate reassembly and to identify correct replacement parts. They can also aid in identifying specific models or variations, which is crucial for collectors seeking authenticity.

Restoring and maintaining your classic Scalextric cars is a rewarding endeavour that not only preserves a piece of your past but also ensures countless more hours of exhilarating racing. By following these steps, you'll be well on your way to enjoying your vintage collection at its very best.

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