Thread Repair Showdown: Time Sert vs. Heli Coil Explained

1. Cost
   Heli Coil kits are initially cheaper, making them appealing for less critical repairs. However, repeat failures often lead to costly oversized repairs, like switching to Time Sert’s Big Sert. A customer put it best: “Cheap ain’t good, and good ain’t cheap.”
2. Tool Length
   Time Sert kits often include longer tools for deeper applications, whereas Heli Coil tools are typically designed for surface-level repairs. Extending or modifying Heli Coil tools can add complexity.
3. Oversized Repairs
   If a Heli Coil repair fails, options are limited to wire-coil solutions like Twin Serts. Time Sert’s Big Sert uses a thicker solid insert to restore the original bolt size without requiring a larger bolt.
4. Insert Retention
   Heli Coil inserts use two main methods for retention: some rely on hammering to swedge them into place, while others thread in and rely on spring tension to stay secure. Time Sert, by contrast, uses a threaded driver to expand the insert at the base, ensuring a more reliable and precise fit.
5. Avoiding Over-insertion
   Heli Coils can accidentally be screwed too far, sometimes dropping into the combustion chamber during spark plug repairs. Time Sert inserts have a flared top that prevents over-insertion.
6. Precision Placement
   Heli Coils are typically flush-mounted, while Time Sert inserts are designed to align precisely with the original thread depth. This is especially crucial for applications like TTY (Torque to Yield) head bolts.
7. Frequent Use Durability
   Time Sert inserts are less likely to come out during repeated use, making them ideal for drain plugs and spark plugs. Heli Coils can dislodge under such conditions.
8. Strength
   Both systems are strong, but Time Sert’s precise placement and secure retention often result in more reliable, long-term repairs.
9. Application-Specific Kits
   Time Sert offers specialized kits for tasks like head bolts, drain plugs, and spark plugs. Heli Coil focuses more on general repairs, which can require workarounds like stacking inserts for deeper threads.
10. Warranty Compatibility
    Time Sert has collaborated with manufacturers for authorized warranty repairs, while using Heli Coil could potentially void warranties as it might be considered an aftermarket modification.

For additional resources, Time Sert videos, and advice, visit WiseAutoTools.com. Need help selecting a kit? Call 800-734-8665  or reach out via our Contact Form.