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DennisB WiseAutoTools.com © Summary: The Calvan 38900 M14x1.25 taper seat spark plug thread repair kit, which is also sold under different labels, works on many Ford SOHC 4.6, 5.4 and 6.8 Liter engines from 1992 to 2016 excluding 3 valve and DOHC engines. The Calvan 38900 is used with the motor/heads in the vehicle. Calvan as well as Time Sert is an over-the fender type repair. These are the most common motors that have the dreaded Ford spark plug blowout problem. Does the 38900 kit wo …

WiseAutoTools.com © Summary: The Calvan 38900 Ford spark plug thread repair kit has the tools needed to repair many 1996 and up SOHC 2-Valve 4.6, 5.4 and 6.8 Liter Ford engines. We identify all the components that make up this spark plug thread repair kit. This kit is used as a first time repair or for a second time repair when a different brand insert like Helicoil Save-A-Thread has failed. The thickness of the insert along with the large lip makes sealing up oversized holes possible, espe …

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 …

DennisB WiseAutoTools.com © Summary: Information on getting an add-on kit for the Time Sert 5553 kit to allow it to do larger diameter repairs when other repairs have failed leaving the hole too big to fix. With so many temporary, parts store type spark plug repairs out there, it’s no wonder that shops are seeing “mangled” failed repairs that have made the spark plug hole too big for the TIME-SERT 5553 kit to handle. The 5553 kit works great on holes up to .66″. Anything larger than that ne …

DennisB WiseAutoTools.com © Summary: Part of our ongoing effort to help make spark plug threads great again. Seriously, we specialize in thread repairs and this is a brief article on do's and don'ts in regard to spark plug thread repair. Spark plug threads in an engine can deteriorate when they’re loose due to vibration, resulting in a sparkplug blowout. Aluminum threads in the cylinder head can also be damaged if cross threaded or “seize” due to dislike metals. Ford 2V engines typical …