My 2001 3788 with 330B's came with 22 x 23 4 blade CJR props. The first year up in the San Juans I slightly dinged one prop, so upon my return I purchased replacements through Olympic Boat Center. They installed the same 22 x 23 props, but they were Nakashima brand, and I had the original CJRs cleaned up and then stored them on the boat. I have probably had those props on for close to ten years and they run smooth, even though one of them has just the slightest blem on one blade. After reading all the discussions about making the rated RPM's under load I checked out our max and both sides run up to about 2,750, and both engines easily surpass 3,100 with no load. I checked our old log book from the first time out with the mechanic and I had made a notation about the boat reaching 2,800, but not exact numbers for each side. At this spring's haulout I plan on changing back to the original CJR's for two reasons. First to see if they reach a higher RPM and secondly just to make sure that the props can be pulled easily should an issue occur out on the water. Any thoughts on the variations between propellers of a given pitch between manufacturers and the quality of the props of these two manufacturers? What props do you with similar setups run? Depending on how the CJR's do, I may just keep the Nakashimas in storage for backup or have them altered to get more RPM's.
Thanks - Open Wide
Thanks - Open Wide
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