Picking and Using Your Valve Seat Grinding Stones
If you've ever spent an afternoon hunched over a cylinder head, you know how much your valve seat grinding stones actually matter. It's one of those tools that seems simple on the surface, but once you get into the nitty-gritty of engine machining, you realize there's a whole lot of nuance involved. Whether you're refreshing a vintage tractor engine or trying to get a little more life out of a daily driver, getting that perfect 45-degree angle (or whatever your spec calls for) is the difference between an engine that purrs and one that develops a mysterious miss three weeks later. ...