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When a Save-A-Thread insert fails, it can leave the spark plug hole in your engine significantly larger than its original size. This scenario often requires more robust repair solutions, such as the 389XL Triple Oversize Thread Repair Kit. Here's a comprehensive guide on how to tackle this issue effectively.Understanding the Problem Spark plug threads can become damaged or stripped due to various reasons, including cross-threading, over-tightening, or the failure of previous repair attempts …

WiseAutoTools.com Summary: Learn how to install Time-Sert for a reliable thread repair. Follow our step-by-step guide and avoid common mistakes.  Time-Sert is a solid bushing insert that provides a strong, permanent repair for stripped or damaged threads. It is a popular choice among mechanics, machinists, and DIY enthusiasts who want a reliable and long-lasting repair for threaded holes. In this article, we'll guide you through the installation process for a …