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WiseAutoTools.com Summary: Wise Auto Tools provides spark plug thread repair kits to fix stripped or blown out spark plug threads in Ford 3-Valve engines right over the fender. There's no need to remove the head. These kits are suitable for spark plug sizes other than 14mm, such as 12mm and 16mm. The Time-Sert 3221 Spark Plug Thread Repair Kit is recommended for Ford 4.6 and 5.4 3 Valve spark plugs with M16x1.5 threads, applicable to most 2004-2008 Ford 5.4 3V engines, and fits 4.6 and …

DennisB WiseAutoTools.com © Summary: We’ve been selling spark plug thread repair kits for many years to vehicle owners and repair shops for Ford spark plug blowout repair. We answer frequently asked questions and go over concerns regarding common misconceptions. Although other vehicles can have a sparkplug blowout or ejection problem, this article is primarily on 1996 to 2012 Ford 4.6, 5.4 and 6.8 engines. The most common kits we sell are the Calvan 38900, the TIME-SERT 5553 and the l …

DennisB WiseAutoTools.com © Summary: Parts and tooling that’s included in the Calvan 39300 or ATD-5410 3V spark plug thread repair kit for M16x1.5 3-Valve engines and basics on how it’s used to restore spark plug threads without removing the cylinder head. The ATD-5410 is a 3V spark plug thread repair kit that repairs damaged aluminum spark plug threads for Ford 3V engines. The ATD5410 is made by Horizon Tools, which also markets the same kit under different labels, including Calvan, O …