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|Nick||I was recently given a case 446, I think it is a 76 model. It runs great but when I engage the mower it looses power and will hardly move. If you know the problem please let me know. Thanks. -Nick
|joe||have you checked the pto pump?
|The Case Kid||The problem could be that you piston could have a hole in it, or something like that. I have a 220 that does the same thing. When I took the engine apart there was a small wear hole in the piston. This would cause the engine to get bogged down and not run when you engaged the mower/clutch because there is not enough compression. Another cause could be that the rings could not be doing their job resulting in the same thing. Good luck on the fix!