|01-09-2011, 09:04 AM||#1|
WFO for 41 years
Joined: Dec 2008
Location: Kensington, NH USA
So my moto bud and I are tearing down the old Limey last night, 30 years since we did it the last time. Figured we'd clean the sludge trap and replace the bearings (100,000 miles in it) and when we got to the right hand main bearing, the crank wouldn't slide, or tap out of the bearing. After lots of bright lights, several pair of reading glasses, we were both astounded to see that end of the crankshaft had been PEENED over with what looks like and air chisel to tighten the fit in the bearing. Because of the radius on the I.D. of the inner race, it's mushroomed over pretty good. Just fugging wow. I'm pretty sure the shop he had balance it 30 years ago did this... but it wasn't mentioned at the time. It's worked great for a long time, but now it's a bitch. I'm thinking a milling machine, an adjustable boring bar and plunge just enough to remove the crank material peened over into the radius. Any other thoughts??
Too much is just barely enough.....
2007 Tiger 1050
2005 Royal Star Tour DeLuxe
1973 Yamaha TX750 1984 Yamaha RZ350
1974 Norton 850 Commando Roadster
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