Have an Older Toro SS3200 TImecutter Model 74621 that has the 16HP Chinese version of the Kholer 16Hp made for toro. A few weeks back it started backfiring real bad and then stopped. Doing research it seemed that it sheared off the flywheel pin. Last year I replaced the deck and all 4 tires and a few odd an ends so figured I would go ahead with a rebuild of this. Got a new flywheel, shear pins, new carb, fuel filter, plug and air filter. Got it apart and yes, pin was sheard off. Replaced, put on new flywheel replaced carb etc... cranked up and still NADA. MOre research and found it could be the valve lash. Pulled the cover and lo and behold, I guess when it backfired it was bad enough one of the rocker arm bolts broke. Replaced it. Set the valves at .004 on intake and .006 on exhaust. it starts but runs VERY rough, it will idle but barely, I can manually push linkage to speed up rpm and it runs but is obviously not right, smokes, pops a bit and is running hot.
I have taken apart about 6 times tweaked the valve lash, double checked the flywheel and all seems correct .... i am at a loss .... any suggestions would be great!
I have taken apart about 6 times tweaked the valve lash, double checked the flywheel and all seems correct .... i am at a loss .... any suggestions would be great!
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