Hair-Bear-Bunch 0 Posted July 17, 2007 Hi, I'm about to start a top end rebuild on a 12hp horizontal crank Tecumseh engine in a Roper tractor. Can anyone help with the headbolt torque ect and the valve clearances please? Thanks. Share this post Link to post Share on other sites
firefoxz1 4 Posted July 17, 2007 Hello. We would really need to know what the model number of the engine is. Share this post Link to post Share on other sites
Hair-Bear-Bunch 0 Posted July 18, 2007 Would be the number stamped onto the cowling or is it likely to be somewhere else? I'll have a look later and see what I can find. Thanks, Rob. Share this post Link to post Share on other sites
Hair-Bear-Bunch 0 Posted July 19, 2007 Ok, found the number; OH140160039BSER8046E Thanks. Share this post Link to post Share on other sites
firefoxz1 4 Posted July 20, 2007 Flywheel: 50-55 ft#; head bolts, 15-20 ft# and connecting rods: 85-110 inch#. .010 intake and.020 exhaust. Edit: Overhead valve engine should be .005 intake and .010 exhaust. http://www.smallenginesuppliers.com/html/engine-specs/tecumseh/Tecumseh_Cast-Iron_Engines_Service_Information.pdf Share this post Link to post Share on other sites
Hair-Bear-Bunch 0 Posted July 21, 2007 Thats great! I'll let you know how I get on. Thanks, Rob. Share this post Link to post Share on other sites
olcowhand 0 Posted July 21, 2007 quote:Originally posted by Hair-Bear-Bunch Ok, found the number; OH140160039BSER8046E Thanks. That is a 14hp Tec engine...OH140. Share this post Link to post Share on other sites
Hair-Bear-Bunch 0 Posted July 21, 2007 Aha, learning all the time. Now, would a head from an OHV130 fit? Share this post Link to post Share on other sites
olcowhand 0 Posted July 21, 2007 quote:Originally posted by Hair-Bear-Bunch Aha, learning all the time. Now, would a head from an OHV130 fit? Not likely!;) Share this post Link to post Share on other sites