[C320-list] Quieting cockpit vibrations

Chris Burti clburti at gmail.com
Fri Jun 14 06:22:20 PDT 2013


We did a Mainsheet article last year explaining it and how to check
it. Even though the faces of the coupler appear to be aligned to each
other, if they are not aligned to the shaft, the shafts will not be in
alignment and you will get vibration even though the faces appear to
guage out to .00001". It only becomes apparent when you rotate the
faces 90 degrees to each other and recheck the gaps, then rotate and
recheck through all four quadrants.


On Fri, Jun 14, 2013 at 8:39 AM, Scott Thompson <surprise at thompson87.com> wrote:
> I thought that coupler alignment and shaft alignment were the same thing.
> Can you be more specific?
>
> On 6/14/2013 12:17 AM, Chris Burti wrote:
>>
>> I'd recheck the coupler alighnment, then the shaft alignment...should
>> not be that much vibratioon.
>>
>> On Thu, Jun 13, 2013 at 11:29 AM, Scott Thompson
>> <surprise at thompson87.com> wrote:
>>>
>>> When I'm motoring Surprise the cockpit is very noisy. I can quiet things
>>> down a lot by having guests, family or the dog sit on the port cockpit
>>> locker and the two lazarrette lockers, which vibrate loudly when the
>>> engine
>>> is running hard. But getting them to "stay" is difficult. What have
>>> others
>>> done to quiet down those locker covers? It appears to be the covers
>>> themselves, rather than the latches, that cause the loud vibrations
>>> sympathetic with the engine, BTW.
>>>
>>> Scott Thompson
>>> Surprise, #653 (1999)
>>>
>>
>>
>



-- 
Chris Burti
Farmville, NC



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