BOBTHEBOPPER 3 #1 Posted October 19, 2016 Can someone set me straight on the flywheels for the K series 10.12 & 14 HP engines. I have a collection of flywheels from these engines and need to know how to tell which flwheel goes to which engine. Are the diameters different? Are the weights different? Are there numbers cast in the flywheel for ID. Kohler does not give any info in their service manual listing flywheel sizes. BOBTHEBOPPER Share this post Link to post Share on other sites
Wishin4a416 2,185 #2 Posted October 19, 2016 Brian Miller says on his website that 10-12-14-16- will interchange. ignition does come into play .You can read it here. http://gardentractorpullingtips.com/flywheel.htm Share this post Link to post Share on other sites
BOBTHEBOPPER 3 #3 Posted October 22, 2016 Thanks Brian for this info. I was under the impression the flywheel was part of the balance system for the crank and piston. Accordingly this is not the case. Maybe you can tell me if a 14 hp Kohler crank can be used in a 12 hp block. I have all the parts from different HP kohlers and need to assemble a complete engine (unfortunatly I don't have a 12 HP crank). Thanks again. Share this post Link to post Share on other sites
Don1977 604 #4 Posted October 28, 2016 A 14 HP crank shaft is heaver then a 12 HP. The 12 HP as the bottom machined off flat. The 14 HP is round on the bottom. It will be out of balance with the 14. Share this post Link to post Share on other sites