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Post by jlasail on Jun 27, 2015 17:04:39 GMT
I had my boat equipped with a feathering AUTOPROP (installed by the dealer on new boat). The boat vibrates depending on RPM, and speed. It clearly comes from the saildrive or the propeller. Has anyone had similar problems on an SO409 with the AUTOPROP?
After cleaning the propeller, it did improve a bit, but was still vibrating at 1900 RPM, and then a few weeks later problem was back over a large range of RPM again.
I am of course calling on the warranty to handle the problem, but if there is an easier answer such as: AUTOPROP(Auto Prop H5-460 RH) is not compatible with SO409 (Yanmar 40HP), that would simplify the process.
thank you,
JL
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Post by mred25234 on Jun 28, 2015 10:42:21 GMT
We have the three blade factory installed folding prop on our 409 and it has been flawless.
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Post by jlasail on Jun 28, 2015 11:24:15 GMT
Than you for the feedback, very useful info, ll have the boat checked.
Jl
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Post by rene460 on Jun 28, 2015 12:06:45 GMT
Hi jlasil,
How long since your boat was commissioned? Has the vibration been there since new? Or has it developed after being initially satisfactory? There are different ranges of possibilities depending on when the vibration was first apparent. Also, when it was cleaned, was there any specific issues such as a barnacle (even a small one) found during the cleaning?
If it was initially ok, then certain initial assembly faults are eliminated and the list of possibilities is shortened. I would be checking the engine alignment to the sail drive (I am not too sure how the engine is coupled on a sail drive), propeller fouling or propeller damage as the obvious possibilities.
If it is from new, it is also possible that the propeller has been assembled with one blade at incorrect pitch. It depends on the design of the auto prop, but some feathering propellers can be assembled with a blade meshed to the wrong gear tooth. This leads to an obvious difference in pitch. Again I am not familiar with the auto prop design, but the manufacturers assembly instructions will describe any particular installation problems to be aware of.
Rene460
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Post by jlasail on Jun 29, 2015 1:43:43 GMT
Thank you Rene. The boat was commissioned in April 2014, so it is still under warranty. At commissioning I notice some minor vibrations over a very narrow of rpm only. The dealer did not consider it as a problem. It then got worse after 2 months. In March 2015, I cleaned the propeller and I believe the situation improved, but again a few weeks later I was back in the same situation .
i believe the dealer will handle it, but I just hate having to do this in the middle of the season. I will post the end results in a few weeks.
thx. JL
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Post by MalcolmP on Jun 29, 2015 16:01:27 GMT
I had my boat equipped with a feathering AUTOPROP (installed by the dealer on new boat). The boat vibrates depending on RPM, and speed. It clearly comes from the saildrive or the propeller. Has anyone had similar problems on an SO409 with the AUTOPROP? After cleaning the propeller, it did improve a bit, but was still vibrating at 1900 RPM, and then a few weeks later problem was back over a large range of RPM again. I am of course calling on the warranty to handle the problem, but if there is an easier answer such as: AUTOPROP(Auto Prop H5-460 RH) is not compatible with SO409 (Yanmar 40HP), that would simplify the process. thank you, JL If you call David Sheppard +44 (0) 1255 420 005 he is the product manager for Autoprop - I am sure he will assist in making sure this issue is resolved speedily |
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Post by Rumpus on Jun 29, 2015 16:01:30 GMT
We have the three blade factory installed folding prop on our 409 and it has been flawless. mred25234, What model have you got fitted to yours as we are looking for a folder/feathering prop? |
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Post by mred25234 on Jun 29, 2015 16:42:29 GMT
Flexofold 3 blade folding. I do not know the exact model number.
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Post by jlasail on Jun 29, 2015 19:33:06 GMT
I had my boat equipped with a feathering AUTOPROP (installed by the dealer on new boat). The boat vibrates depending on RPM, and speed. It clearly comes from the saildrive or the propeller. Has anyone had similar problems on an SO409 with the AUTOPROP? After cleaning the propeller, it did improve a bit, but was still vibrating at 1900 RPM, and then a few weeks later problem was back over a large range of RPM again. I am of course calling on the warranty to handle the problem, but if there is an easier answer such as: AUTOPROP(Auto Prop H5-460 RH) is not compatible with SO409 (Yanmar 40HP), that would simplify the process. thank you, JL If you call David Sheppard +44 (0) 1255 420 005 he is the product manager for Autoprop - I am sure he will assist in making sure this issue is resolved speedily Thanks Malcolm, I may take you up on this if the dealer can't resolve it. |
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Post by oldspike on Sept 13, 2015 19:33:44 GMT
Hi jl
a bit late I know, but I had a similar vibration problem in July on my 379 with the bruntons auto prop. I was in Solent and must have hit some underwater debris. Prop vibrated very badly, pulled back throttle, did not help. Not sure if it was rope, so reluctantly throttled to neutral, then reverse for 10 secs, then full power to reset blades. This worked and vibration went away. Problem has occurred on 3 or 4 occasions since, and procedure, reverse, then forward has solved problem each time. Seems to happen more in transition from sailing to motoring. You need to give it some gun to reset blades. Will grease as maintenance requires on next haul out, but I think it depends on how clean your sea is. We have 6m tides and lots of weed and junk in water in thames and east coast of UK.
SC
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Post by jlasail on Sept 14, 2015 2:29:25 GMT
Thanks SC, on my side I hauled out the boat , cleaned the prop and greased it. The vibration has decreased significantly but is still there for a narrow rpm range: 1800 to 1900 rpm. Prior to that it was pretty much over the entire range. The next step for me is to replace the autoprop by the original fixed blade prop and have the autoprop sent back to the manufacturer for calibration. Will keep you posted.
jl
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Post by jlasail on Dec 23, 2015 2:55:21 GMT
As matter of update about vibration issues on my SO409 , today I replaced the Autoprop with the factory fixed blade propeller and the vibration is gone. It is most likely a calibration/tuning issue with the Autoprop. It will send it back to the dealership and I will mount it back on the boat in Spring?
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Post by J349er on Jul 14, 2016 16:21:07 GMT
Did that get resolved?
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Post by jlasail on Jul 15, 2016 22:13:21 GMT
The situation has significantly improved, I still have a slight vibration around 1800 rpm, within a very narrow range, but it has become quite acceptable, so I consider the problem solved.
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Post by tenacity on Jul 31, 2016 13:09:09 GMT
Hi All,
I have an Autoprop on my 40' sailboat with a Yanmar 3jh5e / SD50 sail drive. I installed the Autoprop on this boat because I was so please with it on my last boat. The only difference is that my last boat had a Universal engine and shaft. The two props are slightly different in that the new one has a rubber damper required by Yanmar when installed on their sail drive. I believe the engine and sail drive on the SO409 is the same. I believe most of the Autoprops have been installed on a shaft rather than a sail drive.
Other than what has already been mentioned has the Autoprop caused any problems with the saildrive itself especially that the propeller operates differently and is heavier than others?
Thanks
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Post by jlasail on Jul 31, 2016 20:33:22 GMT
Hi tenacity
As you can read above, I had some vibration problems with the autoprop on my SO409 which is equipped with a sail drive SD60 not the SD 50. After sending the autoprop back to England ( manufacturer) under warranty handled by the dealer, I mounted it back and the vibration is pretty much gone except for a narrow rpm range, 1850 to 1900 rpm and the amplitude is way less, so overall I am pretty happy with the autoprop now. I can't tell if the issue was due to the SD versus shaft and I have never been able to get an answer from the factory about what they did to it.
Jlasail.
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Post by Spritz on Aug 12, 2016 22:06:43 GMT
Dear all,
i have a 42 DS 2011 with a 3 blades Autoprop. I experienced few vibrations only when the blades are very dirty, but as soon as you clean it with a quick jump underwater the vibrations disappear. Obviously every one/two years you need to clan the hull, put anti fouling and grease the Autoprop with the right prescribed grease!
Best regards
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