Non boat owner question here. Are the engine, reduction ratio, propeller matched for the most fuel efficient RPM by the builder ? And if so if you changed the reduction gear ratio would you need to change the propeller ?
Thank you for your question. You are very close to being correct. Passage-makers are designed to be efficient. Part of that efficiency is swinging a large-diameter propeller at a slow speed. That is the reason for the large reduction in the transmission. a speed boat would have a smaller, faster-spinning prop. The Prop specifications are based on absorbing 100% of the engine horsepower at the manufacturer's recommended maximum, RPM. You can test if you have the correct propeller by doing a full-speed test with a boat - if it is less than the recommended RPM, then the prop needs to have less pitch and vice versa. This is a very simple answer - prop design and application is a very technical topic.
Thanks for sharing this. Do I understand this correctly? A few weeks ago you indicated that a rebuild transmission was needed to solve your transmission problems you were having. Is this additional work you are doing the get everything in tip top shape, or will this solve your transmission problems? If so it looks like a simple fix. I hope you are replacing the races for the bearings. Your videos are always informative.
Thank you for your questions. Yes, I understand that this reduction gear rebuild, along with a gear oil flush will solve my problems. The races are replaced in the next video - with some difficulties.
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Thanks, for another great video. As always, you make this completely understandable for even the novice and wannabe boat mechanics.
Thank you for your comments. I am so glad you find these videos helpful.
As always, a clear explanation and discription of the possible issues and the appropriate fixes to each.
Thank you for your kind words. I can't tell you how much it means to me.
Non boat owner question here. Are the engine, reduction ratio, propeller matched for the most fuel efficient RPM by the builder ? And if so if you changed the reduction gear ratio would you need to change the propeller ?
Thank you for your question. You are very close to being correct. Passage-makers are designed to be efficient. Part of that efficiency is swinging a large-diameter propeller at a slow speed. That is the reason for the large reduction in the transmission. a speed boat would have a smaller, faster-spinning prop. The Prop specifications are based on absorbing 100% of the engine horsepower at the manufacturer's recommended maximum, RPM. You can test if you have the correct propeller by doing a full-speed test with a boat - if it is less than the recommended RPM, then the prop needs to have less pitch and vice versa. This is a very simple answer - prop design and application is a very technical topic.
Your explanation of how it all works is very clear and concise.
@@boatersdivingguide Thanks for the insight.
Thanks for sharing this. Do I understand this correctly? A few weeks ago you indicated that a rebuild transmission was needed to solve your transmission problems you were having. Is this additional work you are doing the get everything in tip top shape, or will this solve your transmission problems? If so it looks like a simple fix. I hope you are replacing the races for the bearings. Your videos are always informative.
Thank you for your questions. Yes, I understand that this reduction gear rebuild, along with a gear oil flush will solve my problems. The races are replaced in the next video - with some difficulties.