ri702bill 9,377 #1 Posted July 19 Both the valves on the C81 I acquired showed wear evenly around the face. The seats were in excellent condition. I always chuck up valves in the lathe and spin them to see if they are either straight or bent. I have had good success resurfacing valves with moderate wear using the lathe and revolving mounted stones - first coarse then fine. the key is to use a relatively low speed on both, and counter-rotating the stone to the rotation of the lathe. The proof in in the finished lapping in..... 3 Share this post Link to post Share on other sites
WHX?? 51,728 #2 Posted July 19 Double threads Bill? Mods cleanup in engines ... 1 3 Share this post Link to post Share on other sites
ri702bill 9,377 #3 Posted July 19 Yup - i did an edit & that happened. Share this post Link to post Share on other sites
