can anyone with a centa or vetus flex coupling to your marine engine answer the following questions:
it appears that these flex couplings mount easily with 6 bolts onto the coupling in the gearbox (my engine = a yanmar 3JH4E 40 hp, for which there is an adapter flange)
1--in order to remove the prop shaft from the centa or vetus, do you just undo the 6 mounting bolts of the flex-coupler , which bolt heads s face aft in a circular arrangement ? and then start pulling the propeller shaft outboard and aft?
2--what bolts retain the prop shaft inside the flexible coupling ? those same 6 bolts, or some other set of bolts or fasteners that need to be loosened?i cannot understand how the force created by the fore and aft install directions of the 6 bolts convert to a clamping force , to keep the prop shaft engaged inside the flex coupling itself.
i need to replace a bent prop shaft and worn out cutless bearing . am having trouble getting the prop shaft out. i am not able to pull the prop shaft out rearward from the flex coupling even though i've already removed the 6 flex coupling bolts. (i have already removed the propeller and cutless bearing from the prop shaft....)
thanks in advance for as much detailed advice as you can supply...
on the hard, and going nowhere til i figure this one out...