[C320-list] Flexible coupler effectiveness?

[Donald Lawson]

Shawn
I put PYI drivesaver on a previous boat. Did not make any difference I could notice on vibration and I still had to align just as close as before.The only advantage is it may fail if you wrap the prop and save your transmission.  Inspect your cutlass bearing closely and if you see any wear on one side you need to align. A flexible coupler will not help you.  My 2 cents.
Don Lawson #1005
On Nov 6, 2011, at 8:00 AM, Shawn Maloney wrote:

> I have a Perkins engine in my 93 C320.  Though these engines are tough and
> reliable, they are not as smooth as the Yanmar.  I have 2100 hours and plan
> to replace the cutlass bearing as a maintenance item.  At the same time I
> may consider a stainless steel shaft ( as some have done on this list) and I
> am considering adding a flexible coupler.  It seems that the coupler is
> about 1 ¼ inches thick and I would resize the shaft to compensate for this.
> 
> 
> 
> 
> I would like to hear any comments as to the effectiveness of the coupler at
> reducing vibrations and adjusting for alignment issues.  Thanks
> 
> 
> 
> Shawn Maloney
> 
> Hull #14
>