Transmission bearing removal tool
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
Thanks to Charlie Mullendore of Antietam Classic Cycle for sending me this information. In Charlie's own words:
I was trying unsuccessfully to remove the front output shaft bearing from a four-speed case with my OTC blind bearing puller the other day. The slide weight just didn't have enough force, even though I heated the case to ~ 300° F. The case had been deformed around the bearing by fourth gear flailing around (bushing had totally disintegrated) and that made it a bit tougher.
Decided to make my owncupto fit down over the collet of the blind bearing puller and along with a threaded rod and nut, figured that would pull it out, just like the factory tool.
Bought a 2 inch × 6 inch steel pipe nipple and machined it flat on one threaded end (the end that presses against the case). Onto that I threaded a 2 inch to 3⁄4 inch reducer. The collet has 9⁄16 inch-12 threads, so I bought a 1 ft section of rod and two coupling nuts from McMaster-Carr to match. The rod was cut into two 6 inch pieces (only one is used) and flats ground on one end for a wrench to hold. One coupling nut connects the rod to the collet, the other does the actual work - threading down the rod to apply the force.
Once assembled onto the stubborn bearing and the threaded rod liberally lubed, it took very little effort with a couple of wrenches to remove the stuck bearing. More cumbersome than the factory tool, but worked very well and at a total cost of around USD $20.00 for materials.