[Public-List] Vibration

[Gordon Laco]

Barnacles like roosting on props.   They’re not very cerebral creatures so it takes a lot for them to notice anything.   Spinning on a prop at 1200 rpm however, breaks the awareness threshold.   It’s probably their only fun



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> On Jul 4, 2019, at 11:31 AM, George Dinwiddie via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Here on the bay, barnacles are the most likely reason for the prop to be out of balance, but it could be anything.
> 
> - George
> 
>> On 7/4/19 9:31 AM, Winslow Ayer via Public-List wrote:
>> No barnacles in Lake Champlain...but I can check. Could the prop be out of balance? Doesn’t seem likely but one never knows.
>> Winslow
>>> On Jul 4, 2019, at 9:27 AM, Mike Lehman <mlehman at gmail.com> wrote:
>>> 
>>> Like Gord says it is most likely a worn cutlass bearing. Easy to check when the boat is out of the water by wiggling the shaft. If the shaft feels loose, it's probably it.
>>> 
>>> It could also be barncales on the prop.
>>> 
>>>> On Thu, Jul 4, 2019, 8:47 AM Winslow Ayer via Public-List <public-list at lists.alberg30.org> wrote:
>>>> Does anyone have thoughts on why I get a vibration above 1200-1300 rpm’s when motoring? I have a feeling that it may be in the alignment of the shaft but I don’t know.
>>>> It’s not unbearable but it is annoying (and loud).
>>>> 
>>>> Thanks for any advice,
>>>> 
>>>> Winslow Ayer
>>>> Tinkers Damn #283
> 
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