I'm going to look at that rear bearing tomorrow now too. My initial impression was it rolled smoothly, no play, no binding. Of course no load or RPM's either. As for the backwards bearing, I've seen the examples and mine follows, however, the hole in the cavity isn't part of a pressurized oil galley as it passes right through into the transmission cavity. I'm not a Triumph engineer, thank God, but it provides no more lubrication than just splash lubrication, I'd think even less compared to how the bearing is situated now. I maybe starting fights with that one.
 
I'm going to look at that rear bearing tomorrow now too. My initial impression was it rolled smoothly, no play, no binding. Of course no load or RPM's either. As for the backwards bearing, I've seen the examples and mine follows, however, the hole in the cavity isn't part of a pressurized oil galley as it passes right through into the transmission cavity. I'm not a Triumph engineer, thank God, but it provides no more lubrication than just splash lubrication, I'd think even less compared to how the bearing is situated now. I maybe starting fights with that

You should look closer that is oil fed ask yourself how the torsional shaft gets oil fed inside it so the spline bushinging can slide when the spring is loaded. Off to church I'll check back.
 
No oil galley hole. The entire torsional dampner assembly also has no galley. All splash lubricated. The hole in the cavity is a pass through. 1512315771035610784290.jpg
 
I agree to that and can follow the galley through journals and machined shafts, the opposite side of the hole is a bearing. I haven't looked on that shaft since i am not removing it, i am assuming its exit is what will be feeding the cavity for the torsional bearing. I'm sold.
 
By the front torsional bearing being in backwards, it's seal effectively isolates it from pressurized oil. Then it has to rely on splash oil. How many miles are on this bike ?
 
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