Chasing Threads

It's important to chase all the threads on the case. Chasing threads cleans out gunk & grit as well as removing minor imperfections in the threads. This results in a cleaner engine and better thread engagement.

Thread chasers can be difficult to find for metric threads, not to mention the high price you have to pay once you find them. So, being the cheapskate I am, I made a set of my own in about 10 minutes.

I started off with 10mm/1.50mm pitch, an 8mm/1.25mm pitch & a 6mm/1.00mm pitch steel socket-head cap screws with a class 12.9 rating. I stay away from SS bolts which could possibly gall the threads when used repeatedly.

With the trusty Dremel & a thin cut off wheel attached, just run up & down the length of the shaft - perpendicular to the threads. Make a few runs back & forth cutting thread depth.

You can make these for any thread, I made one for the head studs as well as the rocker adjusters.