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#1
05-26-2015, 11:38 AM
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Issues with Cub 1650/kohler k341
Hello,
I need some opinions. Got a 1650 with a 341 in it. The motor had new rings put in because it smoked. When I first got it there was a knock. Maybe was ran 30-45 minutes like this that I know of. I adjusted the valves, points, and plug gap and the knock disappeared. So I put the deck on and mow for 45 minutes. Ran strong and no knock. Slight bit of smoke out the breather that you could only see in just the right sun light. Nothing substantial I didnt think. I mow the whole back yard without issues. Make 2 laps around the house and the breather begins to smoke pretty bad. I look to investigate and its pushing oil out of the governor rod and the breather vent. Engine built 120psi compression cold, 15 psi leak cold, 5 psi leak when warm. Starts and runs fine when cold. After about 5 minutes the breather begins to smoke and then oil collects and also pushed out the governor rod. Took the head off and have a oily film all over the chamber. Also was pushing some oily exhaust out the flywheel side of the gasket and exhaust out the pto side as there was carbon residue on and past the gasket. Also i think the head may not have been torqued completely, the bolts were very easy to loosen. Cylinder measures only 3 thous out of spec at most, head is 4 thous out of flat in one spot. Should I just put in new rings and a piston and see if this fixes my problem? What do you guys suggest? Thanks in advance. 
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