Marv 982 #1 Posted January 30, 2017 The exhaust valve on my K321 looks odd to me. Looking down on the top of the valve there is a raised ridge around the circumference (not carbon). The stem is not uniform in diameter, the area just below the valve has a taper like a neck before the stem becomes normal size . The stem does not appear to be eroded or overheated. I don't recall ever seeing a valve made this way. Enlighten me please. Marvin Share this post Link to post Share on other sites
oldredrider 2,553 #2 Posted January 30, 2017 A picture is worth a 1000 words! Regardless, if the valve is not symmetrical, it needs to be replaced. Valve guide wear could lead to the description you noted Share this post Link to post Share on other sites
illinilefttackle 399 #3 Posted January 30, 2017 A picture would be nice- But I have seen valves like you are describing- last one was on my K301. The taper only is as long as the part of the valve that is in the exhaust stream- not touching the valve guide- Al Share this post Link to post Share on other sites
Marv 982 #4 Posted January 31, 2017 1 hour ago, illinilefttackle said: A picture would be nice- But I have seen valves like you are describing- last one was on my K301. The taper only is as long as the part of the valve that is in the exhaust stream- not touching the valve guide- Al That is exactly the way this one is. Marvin Share this post Link to post Share on other sites
