FIX Those Top latches! - Miata tips - 4K - FM Live 7-1224

Introduction

This tutorial will guide you through essential maintenance and adjustments for your Miata’s top latch system. Properly maintaining and adjusting your top latches can prevent issues like rattling, wind noise, and water leaks. Follow these steps to ensure your convertible top is secure and functioning optimally.

Step 1: Identify Common Problems

Before making adjustments, it’s important to recognize potential issues with your top latch system. Look out for the following signs:

• Loose or rattling latches
• Increased wind noise
• Wet carpets, indicating water leaks
• Latches that fall open while driving

Step 2: Perform Basic Maintenance

Regular maintenance can help prolong the life of your top latches. Here’s what to do:

• Lubrication: Apply a small amount of light grease to the latch mechanism. This helps it operate smoothly.
• Inspect for Damage: Check the top lock cap, a small plastic piece that covers the metal latch nub. If it’s broken or missing, it needs to be replaced.

Step 3: Replace Worn Parts

If you notice issues during your inspection, consider replacing worn components:

• Top Lock Caps: Available for different model years (1990-02 and 2003-05). Ensure you choose the correct version for your Miata.
• Aluminum Top Latch Locks: These are more durable than the original cast parts and can be adjusted if they show signs of wear.

Step 4: Adjust the Latch Mechanism

Adjusting the latch can improve the fit of your top. Here’s how:

1. Loosen the Locking Mechanism: If necessary, pop off the plastic piece securing the latch.
2. Adjust the Length: Change the length of the latch to increase or decrease tension on the top.
   • If the top is too loose, tighten the latch.
   • If it’s too tight, loosen it slightly.

Step 5: Adjust the Striker Plate

The striker plate can also be adjusted to ensure a better fit:

• Locate the Striker Plate: This is where the latch connects.
• Loosen and Position: If adjustments are needed, loosen the mounting screws, close the top, and pull the latch to press it into place. Tighten the screws once positioned correctly.

Step 6: Check and Adjust Soft Top Seals

Proper seals help prevent wind and water intrusion:

• Inspect Seals: Look for any misalignment or damage.
• Adjust Window Position: If necessary, you may need to adjust the window’s position for better alignment. This involves removing the door panel.
• Lubricate Seals: Use silicone grease to rejuvenate rubber seals.

Step 7: Maintenance for Hardtops

If you have a hardtop, similar adjustments apply:

• Adjust the Latches: Similar to soft top latches, adjust the length and ensure a snug fit.
• Check the Frankenstein Bolt: This bolt secures the hardtop; ensure it’s adjusted correctly to prevent movement.

Conclusion

Maintaining your Miata’s top latches is crucial for a secure and quiet ride. Regularly check for wear, adjust latches and striker plates, and ensure seals are functioning well. If you encounter persistent issues, consider replacing worn parts or consulting with a professional. For more tips and replacement parts, check out the resources available from Flyin' Miata. Happy driving!