Gearbox crack

All I could think about for decades was replacing my P!! I missed so much.
Mostly its light wt and hi power of its special engine.
But after tasting the joys of a Combat Commando, no way would
I want factory scabbed together P11 for daily use, just rare blasting my
nerves out and busting myself up off road and it too.
Parts for P11's are rare as hens teeth and cost more when found.

I keep a photo of one a friend sent over my work desk, as reminder.
But its all dressed up and weighted down by road going extra stuff.
Picture most paired down desert racer with Axtel engine then
remove the number plates and any cushion in seat and built 2" front low.
Tach was marked at 9000, so not knowing nothing, guess how
I'd start off to go no where through 4 gears barely moving ahead
of the dense smoke clouds feet on pegs and ears hurting, tapping
a big chrome kill button to save time shifting at WOT.
Could not apply full throttle on street tire below 60 mph or
acceleration hesitated by tire spin till bike caught up.
I had to baby it to get around in town, but direct throttle
to tire rpm w/o regard to speed was handy to maneuver
w/o leaning. A small book to cover the adventures/stunts
it brought me. So bad a bike, HD biker drug gangs treated
me as family, till I saw what that meant and avoided involvement.

If you do get a P11 to live with, Tom Davenport had the solution,
he put on rubber mounted Honda yoke/bars, but that would only
save the hands some, not sacrum to brainium and feet.
Tom dropped out of sight, I assume dead now some how.

hobot

slimslowslider said:

Hello swooshdave, yes sure looks way simpler. Looks like bearing is not recessed, bearing is protruding just a few tenth of a milimeter from the casing so washer will clamp on it with some force, I guess, and this force should prevent outer ring from turning. So washer is sticking out from casing, no problem as there quite a bit of "air" between crank web and casing. This air is not there at the sleeve gear bearing in the gearbox however, anyting that goes in there should not protrude over the bearing or the sleeve gear will touch it. I had no means to properly mill the bearing to suit a round washer.
Actually, thanks for the tip, had not seen it before, I might use it on my A65 BSA, it has the conversion to needle/ball bearing and, you guessed it, it is sitting loose...

Click to expand...

Actually, both the bearing race and the casting are counterbored, and the hardened washer fits into the counterbore, not clamped on top. The idea is very much like yours. I ground the notch in the bearing race with a small grinding tool in the mill. You can see the machining details here, towards the end of the thread.

short-stroke-750-build-t5490.html

Ken

Thanks Ken, all clear now, looks very good, will make use of this on the beesa. Did not have time to respond earlier, visited the INR in the north of Spain. Cheers.