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Reply to "Anybody regear a Williams 2R Challenger?"

Well, for some reason I hate to post this right now. I am tired and quit for the evening, so here's where I'm at.

Bob2 was right for the most part so far. I had to drill out the stock flywheel for the new Pittman motor shaft diameter. I didn't get it perfect. The flywheel wobbles on the shaft. At high RPMs it's real loud. Took a quick file to it and it smoothed out ever so slightly. Just not good enough.

 I removed the flywheel altogether. I put a hose from the motor shaft, over a smaller hose piece on it, and connected it to a piece of square plastic stock filed down slid into the U-joint. It was real quiet apart on the bench at slow speeds. I had to have something for the tach to read so I made up a semi-hollow flywheel for the tach tape. I put it together and test ran it. I swear it's every bit as loud as before I started. It didn't go over around 45MPH no matter what I tried. It maybe the poorly striped & wobbly homemade flywheel adding to this issue.

 I've had this engine apart at least 10 times tonight. I gave up on it and will have to figure out what's next. This contraption of mine has to spin so fast and hard to get the engine to track speed that it sounds like it's tearing itself apart. The more I think about it, the solution is to change the gearing.

 So I'm really back where I started or worse. Now some things are done that I can't undo. I hate to have another scrap engine laying around. Either I gut this for parts for my broken 2 rail Allegheny (needs the PS2 board set) and add to the pile, or figure out some way to keep the rpms lower. 

The next time I feel like trying stuff, I'll look into the gear box. Way over my skill set but what do I have to loose? I wonder if the MTH gearbox would fit?

BTW I stuffed the inside of the shell with some foam double sided tape. I thought it might help. It didn't. 

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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