pfrederi 17,147 #1 Posted July 23, 2014 Bigger Kohlers have adjustable valves, but the 7 and 8 hp models (also KT17) do not. If the valves are too tight the manual says you are supposed to grind some metal off the end of the valve stem. I am working on one right now where someone tried this...looked like he held the valve in his hand and attacked the end with a file. There are several planes to the end surface. You can see only a small portion of the valve stem contacted the tappet. Any tricks or tips on how to neatly and evenly remove a bit of material from the end of the valve stem?? As engines age and valves get lapped the valve seat gets a bit thinner and a new valve will be too tight. Share this post Link to post Share on other sites
sorekiwi 761 #2 Posted July 24, 2014 I clamp a V block to the table on my bench grinder, square to the side of the grinding wheel. Just touch the wheel very lightly and keep checking your length. Pretty easy to take off too much. 1 Share this post Link to post Share on other sites
Coadster32 793 #3 Posted July 24, 2014 Great tip Mike. You can also do the same to a belt sander if available. It should be a little more forgiving on the material removal with a medium grit belt. Share this post Link to post Share on other sites
pfrederi 17,147 #4 Posted July 26, 2014 I will try that ...Thank you!! Share this post Link to post Share on other sites
