Yanmar 3GM30F prop recommendations, please.. - SailNet Community

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  #1  
Old 07-23-2006
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Yanmar 3GM30F prop recommendations, please..

I had some variable pitch job, 2 blade, about 16 inches diameter. It overloaded the engine and wouldn't allow the RPM's to advance over 2900 when they should get to 3400. No, I don't want to fiddle around with the settings. The boat's on the hard and I want to put a 3 blade on. Anyone with this setup that can recommend a SIZE prop is welcome because I haven't got to much of an idea. Was thinking a 16x13 but it might be too big. Apperature isn't a factor.

I have a 1987 Tartan 34-2 with a scheel keel.
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Old 07-23-2006
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I have same engine in a catalina 320 using a 15" x 9" 3 blade prop
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Old 07-24-2006
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Called Frank & Jimmy's and the guy punched all the data into the computer and it popped out 16x12, by golly! Aren't computer's wise? Gonna call another place or two but am pretty sure they will say the same. So now it is a question of the manufacturer and how cheap I can get. I like the idea that Michigan has with a smaller blade area and I think that's about what the Campbell sailor does also. I have heard that Cambell can be a bit of hit and miss though, quality control, I don't know.
Bull of Bull's Prop Shop is going to resize a new 16x13 to 16x12 and sell it me a fixed 3 blade for $200. It is a great place, in Beaufort. Give him a call if you need a good honest sale. He fixes and repitches too.

Bull's Prop Shop
404 ORANGE STREET, BOX 193 BEAUFORT , NORTH CAROLINA USA , 28516

252-728-2740
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Old 08-18-2006
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We had a fluke break off of a folding propeller on our Omega 36 the very weekend after we bought her! Same engine as yours. (Heartbreaking)

Not knowing any better, I had her hauled and worked with a local repair shop to replace the broken prop with a Michigan Sailor two bladed fixed prop, P/N 370810. Seems to work OK but I don't think it has the thrust at RPM of the original, though. Pushes the boat at about 6 knots (no headwind) without running the RPMs too high.
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