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Old 01-30-2012, 09:25 PM   #21
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RE: 34 Californian props

I'm sorry, I haven't had any luck attaching the scan reports.* They are .pdf format and I don't remember how to convert them to .jpg to attach.* The attach tool says they are not an image file so they can't*attach them.*** I know they are not an image file they're .pdf*!!!** I get really P.O.ed at Adobe stuff at times.* Why doesn't it just do what I want it to?** I will get it done tomorrow.
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Old 01-31-2012, 12:04 AM   #22
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RE: 34 Californian props

Craig, I got my props back over the holidays. They were a little worse than yours and the cost to go throu them was nearly identical. I had the work done at Accutech propeller in Dover, NH. My props were/are 21 x 20 and shafts are 1 3/8ths. I gave the shop the engine curves and boat information and let them know that my engines would go over max continuous engine speed which is 2400 rpms (ST6.3544M engines). They recomended I maintain the same pitch and suggested they add .030 cup which I had them do. I was getting 14.7 knots at about 2600 rpms. The shop said I should see a definite increase in performance, increased fuel economy and less vibration. I sure am curious how they will run this Spring! Leon
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Old 01-31-2012, 07:12 PM   #23
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RE: 34 Californian props

Craig, if you are not sure what your maximum engine speed is you can find the information to figure it out on your injector. *Your high idle should be the last 4 digits on the tag located on your injector and is usually set to about 10% over your maximum engine speed. *Note in the attached photograph of my injector that my high idle is set at 2640. *This number represents the maximum engine speed + 10% or 2400 + 240=2640. *My engine maximum speed is 2400 and the governor will limit the engine speed so that it should not go over 2640rpms. *I did some checking on this because I found that depending on the exact model the maximum speed varies and the propeller shop wanted this information. *The maximum continuous speed for my engine is 2250 rpms. *
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Old 01-31-2012, 08:07 PM   #24
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RE: 34 Californian props

I just learned somthing I didn't know.** I just checked my Perkins owners manual, workshop manual and parts manuals and none list WOT rpm's.* I didn't know to look at the injector pump.* I will need to check those the next time I'm 'in' the boat.** I decided to just go with 21 x 21 as the props were when new.* The next time I need to rework them, I will know a lot more about how they perform, and what I might do to optimize performance.
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Old 07-31-2015, 04:48 PM   #25
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City: Muskegon, MI
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Vessel Model: 1981 Californian 34 LRC
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34 Californian Props

our 1981 has twin 200 Perkins swinging 3 blades. Not sure of size/pitch until we pull in October. We get some vibration out of them it seems, and they and shafts were trued in spring. Mechanic had thoughts that 4 blades might smooth her out, so I am interested in this thread. Love the boat either way so far. Our first season of ownership has been so varied in wind/ water to where RPM to knots has not been figured. Rudders sure seem small for the boat in following seas.
--Still love her.

--Jim
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