Review on TIME SERT Triton Spark Insert 51459 by Chris Wheeler

Time Sert inserts are the only real permanent solution to the Ford spark plug problem. I have rebuilt many Ford engines with other inserts and they have always almost failed at some point. The Time Sert system is the only insert that has NEVER failed or had to be replaced again. Would not recommend this product above if you need to repair a blown spark plug hole on a Ford engine.