Reinstall MaxProp
When I removed the MaxProp from the shaft it was clear that there were more exposed threads than desired by the MaxProp manual from PYI. After the taper had been recut on the shaft it was even more so. The technician at Windward Yacht Center and I determined we needed to remove 2.5 threads from the end of the shaft and he proceeded to use a saw to cut the end of the shaft. After two burned up blades he determined that a cut off tool for a grinder was a better choice and was able to cut off the extra threads. We torqued the nut using a chain wrench on the shaft forward of the strut and a large wrench on the nut. Being that the yard installs propellers far more often than I do, I was happy to let him pull the final torque into place. The sawsall was not terribly effective in removing material from the end of the shaft. It is possible that the shaft is monel rather than stainless steel which would make cutting the shaft significantly more difficult. After the shaft was cut we made sure that a nut could be threaded onto the remaining threads and cleaned up any sharp edges so a diver would not be cut up if I had to change out the propeller in the water at some time in the future. Then we drilled and pined the nut as required by PYI. The technician and I reinstalled the rest of the propeller and I torqued all of the cap screws (all new from PYI) and installed the cotter pins into the heads of the cap screws. Then the propeller assembly was pumped full of Lubraplate 130AA as provided by PYI. Note that this hub does have the grease fittings and so could be pumped full of grease after final assembly. When the propeller was dry there was a slightly sticky spot in the rotation of the hub assembly without any blades installed. However, this spot is not noticeable when the blades were installed and the propeller pumped full of grease. Note that the rotation of the line cutter fixed blades are directly behind the blade axes and is correct in both rotations. The technician also showed me some tricks for getting these propellers installed without a second person. Specifically there are dimples in the hub and rotor assembly to ensure that the correct orientation is selected and by installing the blades into the hub cap and then placing on the hub it is much easier than trying to put each blade into the rotor and then putting on the hub cap.