gt14rider 1,049 #1 Posted Tuesday at 10:48 PM Hi all, got a question about valve rotators. Doing a valve job on a k181, is it worth changing springs and adding rotators or just leave it alone. 1 Share this post Link to post Share on other sites
ebinmaine 77,397 #2 Posted Tuesday at 10:50 PM Seems to me I've read that an exhaust valve should be rotating. Intake is optional. Heat patterns perhaps? 3 1 Share this post Link to post Share on other sites
Achto 31,046 #3 Posted Tuesday at 11:07 PM 17 minutes ago, gt14rider said: is it worth changing springs and adding rotators or just leave it alone. IDK the engine probably ran for 50 to 60 years with out them before. 4 1 2 Share this post Link to post Share on other sites
gt14rider 1,049 #4 Posted Tuesday at 11:20 PM The reason is I'm right there, had to change the cam(broke in half). Got new valves, replacing valve springs 230010. springs are shorter for the rotator 230168-s 1 Share this post Link to post Share on other sites
ri702bill 11,277 #5 Posted yesterday at 12:39 AM The use of Rotator(s) explained on page 12.14. KohlerKseriesManual.pdf 1 Share this post Link to post Share on other sites
WHX?? 55,098 #6 Posted yesterday at 01:01 AM Bigger question is how did you bust the cam?!?!? 1 Share this post Link to post Share on other sites
gt14rider 1,049 #7 Posted 21 hours ago @WHX?? the tractor was running, had a tick and geting loader. Pulled apart and found this, chunk of cam missing, found it in the pan. 20260114_101853.mp4 4 Share this post Link to post Share on other sites
WHX?? 55,098 #8 Posted 10 hours ago 11 hours ago, gt14rider said: had a tick Ah I think you mentioned this before Rider. Here i was worried a rod snapped, holed the block and all that carnage. Odd that it broke must have been just a weak spot in the cam? Share this post Link to post Share on other sites
gt14rider 1,049 #9 Posted 5 hours ago @WHX??Had another post (k181 ticking sound). Well I started peeling the onion, new rings,dingleberry hone,both valves, new valve spring,glasses the head and deck,new bearings, seals,and carburetor and fuel pump rebuild. Had crankshaft and block checked, .0015 tapper on crankshaft (in spec) .0025 in the middle of the bore ( should be ok new Kohler .020 over rings ). I got it apart might as well get it done. That's why I asked about the rotators, I would have to replace the springs if I use the rotators. Like @Achto said it ran 50+ Year why mess with it. 2 Share this post Link to post Share on other sites
squonk 45,555 #10 Posted 4 hours ago I try to put in what came out. Little trickier getting that rotator in with the limited room. Share this post Link to post Share on other sites
gt14rider 1,049 #11 Posted 4 hours ago (edited) @squonk you are so right, it was a pain in my a$$ to get the exhaust valve spring out, that's why I'm baying the new valves springs. Exhaust Valve spring is tweeked Edited 1 hour ago by gt14rider Share this post Link to post Share on other sites
