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DennisB WiseAutoTools.com © Summary: Why it is so important NOT to drill or tap before making sure the valves are closed. When it comes to spark plug thread repair, a common misconception is that the piston "being down" is the only concern. Below is part of a recent email conversation I had with a customer preparing to fix his spark plug threads.Dennis. I have a few more questions if you have the time. I don't have an air compressor so I won't be able to use the leak tester to find bottom d …

WiseAutoTools.com © Summary: Testimonials for the Time Sert 5600 Triple oversize thread repair kit. Wise Auto Tools is happy to offer the Time Sert 5600 which is made in the USA. With so many China made spark plug thread repairs being sold at parts stores that tend to fail sooner or later. It's good to know that an American made kit can save our customers the expense of replacing a cylinder head. Engineered and manufactured in Reno Nevada, the Time Fastener company AKA Time Sert, has bee …

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 …

DennisB WiseAutoTools.com © Summary: Recent question from our customer regarding the correct spark plug thread repair kit for his Ford E350 van. Vans are harder to access when working on the spark plug threads or just about anything else in the engine compartment for that matter. However our kits can be used without removing the heads. Just as changing the sparkplugs can be done after working to gain access by removing air duct work and the engine cover etc. I know that makes it sound simple but …