Rear main bearing flange removal tool (MG# 12913600)
Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
I used the following described technique with excellent success for years before purchasing the original factory-style tool MG# 12913600.
I extracted this recommendation from Curtis Harper of Harper's Moto Guzzi off of the old Yahoo! Loopframe_Guzzi news group (which has now moved to Groups.io). In Curtis' own words:
Actually there is a hardware store fix for the rear flange removal. 2 8 mm set screws and 2 10 mm bolts 50 mm long that are threaded all the way to the head.
- Once all the 8 mm bolts holding the rear flange in are removed, find the two holes in the flange that are threaded to accept the tool. Then screw the 8 mm set screws into the case, just run them in flush. The purpose for these is the protect the threads from any possible damage from the bolts used in the next step.
- Screw the 10 mm bolts into the flange until the contact the set screws in the case, then one revolution at a time alternate between the bolts pushing the flange out at at even rate.