A 25 yr old 26' Duffy has a 1 1/2" bronze shaft and a vented shaft cutlass bearing. It needs replacing. The surveyor noted the bearing to prop distance of 3 1/2" was longer than recommended (over 2 diameters I think he said). If I don't wish to cut down the shaft and re-key, is it sensible to press in a longer bronze sleeved cutlass and have it stick out say 3/4"? Would that effectively move the center of support aft 3/4"? If doubtful, any harm in doing?
No sign spurs and no wear marks to note the shaft had ever been more forward than now. But it had been re-powered with an identical TAMD31, though it was now the P version not the A, and as the forward clearance of the SW pump and deck cutout is only 1/2", maybe they had to move the whole engine aft to fit the opening??
Thanks for comments.
No sign spurs and no wear marks to note the shaft had ever been more forward than now. But it had been re-powered with an identical TAMD31, though it was now the P version not the A, and as the forward clearance of the SW pump and deck cutout is only 1/2", maybe they had to move the whole engine aft to fit the opening??
Thanks for comments.