Cutless Bearing Replacement Discus and W33

The noticeable +/- 1/32" play in my Discus Cutless bearing was a surprise because it had been replaced professionally six months earlier by the previous owner. The Surveyor suspected engine alignment or rough prop shaft surface.

Prop and Cutless Bearing Before

Prop Shaft Removal The Discus and W33 Cutless bearing are of the same design and are basically a larger versions of the Centaur arrangement. The procedure for Cutless bearing replacement is as described in Centaur Cutless Bearing Removal and Replacement. More heat may be required to free off the prop. Hot water wouldn't do it for me but a short application of an oxy acetylene torch did the trick instantly.