Originally Posted by 1Gary
So a 177 once the vanes/case are worn is a throw away??.
Keep dirt and your fingers and tools out of the blower and this will not happen. The rotors never touch the case under normal use.
its is possible to strip the 177 rotors, but you don;t need to.
The bearings and seals and drive nose is serviceable. When it does eventually need servicing its not complicated or expesnsive.
There are many many good blower rebuild service shops that do these rebuilds. Including Holleys factory shop, Dyers, BDS etc etc. This blower normally out lasts the owner.