[C320-list] Quieting cockpit vibrations

[Marko Jamnik]

I too had insulated the inside of the engine covers and made sure it cleared any moveable parts. But in doing so, and through a number of discussions I did have a concern of retaining too much heat in the engine compartment over a prolonged period even with the blower on. I have since removed the insulation and realized that the noise I was subjected to would give me an indication of wether the engine is running as it should. Okay so I had to crank up the tunes a bit. I added felt pads to the outside lockers to eliminate and rattles from the engine.

Marko Jamnik
Marquesas 304
Lake Ontario



On 2013-06-13, at 11:43 AM, John Meyers wrote:

> This may not be an answer to vibration noise but I put some 1 inch
> insulation on both engine compartment covers as much as I could without
> interferring with the pully on the front of my Yamnar. It made a noticeable
> difference. When my first mate starts the engine while I am up bringing in
> the anchor most of the time I can't even hear the motor.
> 
> John Meyers
> #406 Wind Chime
> 
> 
> On Thu, Jun 13, 2013 at 11:37 AM, Tony Murphy <tony at midwestphysics.com>wrote:
> 
>> Have you had your shaft alignment checked recently?  Or the status of your
>> cutlass bearing checked?
>> 
>> I had a bit of vibration when we purchased #886 a couple years back, but
>> aligned the shaft and replaced the bearing before transport and it was much
>> better when we splashed.  I'm just guessing, but it doesn't sound normal to
>> have your hatch covers vibrating so much.
>> 
>> Tony Murphy
>> Bella Sol #886
>> 
>> 
>> On Jun 13, 2013, at 10:29 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)
>>> 
>> 
>>