We have a customer with a Yamaha VF225LA SHO VMAX engine that keeps breaking blades on the propellers. They purchased the engine last January (2017) to repower a 2010 Ranger 2050 Reatta. The dealership installed a 20" motor on a 25" transom, so they have to lower the jack plate all the way so that it will work. In the 13 months that they've had the boat, they've slung a blade off of 4 props, and spun the hub out of a fifth. The blades have all cracked on the trailing, cupped edge right at the hub. The props have shown no evidence of striking anything. The propeller that was originally installed, and that we've used to replace it, was a MAR-GYT3B-V6-22 Stainless. Does anyone have any ideas as to what is causing this? Should they be using a different propeller? If it was just one prop, I'd say it was just a manufacturing defect. But, to have this many failures in such a short period of time. Any help that can be provided will be greatly appreciated.
Thanks,
Harold
Thanks,
Harold