Posted by Dale Shaw on July 09, 2013 at 16:25:33 from (74.40.103.42):
In Reply to: cub compression posted by steve alderman on July 03, 2013 at 15:42:00:
I just got a '52 a few weeks ago. It would start and run on 2 cylinders 1&4. 2&3 both had stuck rings and minimal compression.
I ran the tractor till it got good and warm, and took a bottle of MMO, and at full throttle, drizzled it into the throat of the carb till it almost choked out. Then let it recover.
I did this a 2nd time, and then, the third time I let the oil choke out the engine.
Turned off the gas and the ignition and walked away for 3 days.
Pulled the plugs and spun the motor. Replaced plugs with new Champion D-21 and a new cap and wires and set of points.
It fired rite up with a slight miss, and smoked to beat the band. But, after running it a while, bringing it up to temp and putting it under load, all the rings freed up, it purrs like a kitten and will start on the 2nd pull of the hand crank.
no longer smokes at all, no blow-by and lots of power.
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