The obvious question in this case with a folding prop, is do all the blades open all the way? Once it is in the water it is hard to tell unless you can dive on it. I bought a used 2 blade prop recently that is geared so that the halves are supposed to open evenly. The pins are so worn in the prop body that the gear teeth can jump one another and it gets stuck so that one blade does not open all the way. In my case the prop needs to be re-built. The short answer is that anything that causes one blade to stick will cause the problem you describe. There are other possibilities, but that is the easiest to check.
Steve Thomas C&C27 MKIII Port Stanley, ON ----- Original Message ----- From: Robin Drew via CnC-List To: cnc-list@cnc-list.com Cc: Robin Drew Sent: Saturday, May 28, 2016 17:26 Subject: Stus-List Propeller I have just purchased a C&C 33 mark 2 with a 2GMF engine. It has a clamshell-type folding propeller that, once in gear, is causing significant vibration above idle speed. What could be causing this? Robin Drew Mobile: +1 514 4632060 "The only thing we have to fear is fear itself" - FDR ------------------------------------------------------------------------------ _______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
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