Can't believe it. Just spent over a year pulling out the old engine (rod broke last summer) from my 129, separated the tractor, pulled the pump and replaced the cork gasket, got a rebuilt engine, put it in and got everything hooked up again (over the course of a few weeks), and finally am at the point where just a few minor adjustments were needed and now, when starting it for the 2nd time today, I hear this loud noise coming from the trans. It was running fine. I started it for the first time a few days ago as per the break-in procedure, ran great, re-torqued the head bolts last night and today wanted to adjust the cam bracket since the tractor creeps forward. Started up just awhile ago and ran fine, but then ran out of gas since I forgot to open the petcock. Next time I tried to start, I hear the loud grinding noises (more like screaming). If I turn the motor real slow, I can hear clicking noises - seems especially to affect the shift control / trunnion shaft area when turning the engine real slow by hand. When jacked up, the rear wheels turn fine with no noise coming from the transaxle. No problem with the driveshaft (that would have showed up right away I'd think).
Any suggestions? I'm NOT about to take this thing apart again, but neither am I ready to quit on it after spending over a grand already. For one thing, I'd have no idea where to even begin if there is a trans problem. I feel sick over this after coming so close to getting it running again. Will contact the guy who built the engine since he was willing to come out to check the high rpm speed for me. Might as well let an expert listen to it and go from there. If this is a serious trans problem, unfortunately I think I'm done and the Cub goes for sale as is - with a whole bunch of brand new things on it - basically completely new electrical system, plus lots of other stuff - then there is also the rebuilt engine from a never used block.
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