1980-1981 Honda Odyssey FL250 Shop Manual, Page 54Get this manual
FL250 KEY WAY
CDPlace the movable face over the fixed face hubInstall the Morton Ke'yPI,ace the head of the speciall 12-20 bolt in bench visePlace the fixed and the movable face assembly on the screw (fixed face down)
Hook the spdng end over anyone ,of the round bosses
on the internal side of the camWhile holding the cam and spring, attach the other end of the spring to anyone of th'e three spring anchor pOlints in the movable face Rotate the fixed face and hub until the key and the keyway are alignedPlace the puller plate, flat washer and 12-20 nut over the cam and depress the cam on the hub unti,ll it engages with the key, thus aUowing the movable face to rotate without cam contact
MORTON KEY
Rotate the movable face counterclockwise to achieve
a full 180 sprin,g preload and ho,ld itin this position0