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Wanting to use a hydraulic press to install gearbox bearings in my 1969 Triumph unit construction 650, I was faced with the problem of how to stabilize the engine unit on the press table in such a way as to insure that the press was perpendicular to the bearing seats in the engine casing.
My solution was to fabricate a plywood base and attach it firmly to the primary chain case using the primary chain case cover fasteners.
