Review on Time Sert M8X1 25 Thread Repair 1812 by Aaron Lewis

2003 Chevy Malibu 3.1 174000 Miles Rocker Thread Repair - Cylinder 4. (Post your vehicle specs to help others!) First of all, it's made in the USA. Very good quality and works very well. The tensioning screw of the fourth cylinder was unscrewed. I found the seesaw just sat there. The time to complete was about half an hour. It's basically prep work and cleaning. The actual repair should take about 10 minutes or less - I'm not a mechanic. I've seen several reviews from people complaining about broken parts in the box. You must be doing something wrong as they are good quality and should never break, especially when used with an aluminum head. The kit comes with everything you need, including five sets. These are 8mm 1.25 thread kits. Because of this problem, GM later increased the bolt size to 10mm. Make sure you choose the right kit size. Measure the rocker arm bolt with vernier calipers. Mine actually measured about 7.40mm. Therefore, you must use the 8mm kit. (1812). This is my first time using chronometers. I thought the hardest part would be making sure I was parallel to the bolt hole when I drilled the old threads. In fact, it is more important to use a bridle to create a collar. If you don't set up the cert collar properly, it will sit above the surface where the rocker goes. You then have to do something as simple as remove it and fix your problem. Background: After you have drilled the collar, take the insert and install it upside down (collar down) making sure it is drilled straight and below the level of the yoke attachment. I think if you mess up, you will throughout the process here. Caulking the insert threads and installing the insert is the easy part. I would like to point out that the reason I didn't give it 5 stars is that the drill guide appears to be much smaller than an 8mm bolt hole after the threads have been reamed. This can cause you to not be centered on the bolt hole. It would be nice if it was tighter. However, when drilling a collar, move slowly and let it scratch the surface first and then check alignment. If it looks good, then go ahead. If you make a mistake, it's not that bad. Remove a little more and a little more material so the collar fits properly. When drilling and gluing, you need some tools to make the job easier. A regular faucet will fall short if anything is in the way, unless you've removed the valve head. The Lisle 70500 Diverter Set is your friend. You can then attach the extension to the taps and use the ratchet. Also remember that lubrication or oil is important. Not a ton but enough to get the job done. A workshop wanted 900.00 for the repair. Another said to just throw the car away. I fixed that with the cost of this kit and Lisle's coupler kit. Last comment here: Don't use spiral coils. They aren't as strong as the hard inserts in this set. Heli coils are suitable for simple repairs that, unlike a see-saw, do not require much effort.