The thrust plate is cast steel, not brass, and it's brittle. Pressing an old gear off is a recipie for disaster. We used to break the old fiber gears off with a pry bar and split the gear hub with a chisel, then heat the hub of the new gear and tap it onto the cam with a block of wood and a BFH. An aluminum cam gear can be drilled and tapped for puller bolts- - - -it's junk anyway.
Jerry



"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!