Blog

This article is in video format at the bottom of the page! How severely can a spark plug hole in an aluminum engine head, which previously had a repair insert and has since blown out, making the hole bigger and showing signs of erosion, be damaged and still be fixable? Basically, there needs to be enough material to ream or drill out so that complete threads can be tapped to accept an oversize spark plug insert. The image above shows a spark plug hole after a Napa Fix-A-Thread insert failed, lea …

We have a short article called "Harley Davidson Spark Plug Threads - How to Fix" on spark plug thread repair kits used for first time repairs on Harley Davidson and other makes of motorcycles that has received a lot of attention lately. We've also been getting emails and phone calls on how to make a repair after a parts store insert has failed making the hole bigger. For second time repairs on M14x1.25 there's a Big Sert kit available. Big Sert is Time Sert's name for an oversize thread repair k …

Wise Auto Tools - I wrote about a customer several years ago who wanted just the tap out of a 2200 kit. I had another one that asked "Can I buy just the thread tap out of the Time Sert 3700 kit?". We receive these types of calls frequently. The TIME-SERT 3700 kit, is the M11x2.0 Universal Head Bolt Thread Kit that we typically sell for many LS engines. I asked if he had the kit, and he replied, "Sure, I do." I said, "Well, okay, what's the number off of the tap?" However, I s …