[C38] vibration under power

[Joseph Launie]

jumping in - went from a 2 bladed max prop to a 3 bladed ma prop a nd 
everything smoothed out a lot including my nerves in reverse Joe 
Launie/Macavity

On 5/29/2012 2:41 PM, Steve Smolinske wrote:
>
> Check your motor mounts, when I get vibration it is usually from one 
> of the mounts being loose,  also prop may make a difference, when I 
> motor with the two bladed Folding prop there is more vibration then 
> when I have the three bladed feathering Max Prop.
>
> Steve
>
> *From:*listserve-bounces at catalina38.org 
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of *Jay Sorensen
> *Sent:* Tuesday, May 29, 2012 2:34 PM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] vibration under power
>
> Hi Don,  Thanks for the quick response.  A practical guide for engine 
> alignment would be very useful.  A cursory look on-line did not yield 
> anything.  Vibration became more of an issue after installing a new 
> ZF-10.  After a few hours break in, with more vibration than 
> previously, I have the coupling apart now and can visualize the 
> misalignment.  Just not sure if I should start with the front mount, 
> loosen everything first or what!  And those side mounts have very 
> little clearance for a wrench. Was skeptical about the chances of 
> having vibration free running gear without a flexible coupler but you 
> give me hope!  Thanks!..........Jay
>
> ------------------------------------------------------------------------
>
> *From:*listserve-bounces at catalina38.org 
> <mailto:listserve-bounces at catalina38.org> 
> [mailto:listserve-bounces at catalina38.org] 
> <mailto:[mailto:listserve-bounces at catalina38.org]> *On Behalf Of *Don 
> Strong
> *Sent:* Tuesday, May 29, 2012 2:10 PM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] vibration under power
>
> Jay: We have a solid shaft coupling on Discrete Charm and no 
> vibration. I would suspect that your engine and shaft are not aligned.
> I was able to align my shaft in a couple of hours alone. With help, it 
> would go faster. Instructions are on line.
> I will send you instructions for alignment if you want.
> Regards, Don
>
> On 5/29/12 1:47 PM, Jay Sorensen wrote:
>
> Greetings All,
>
> As we use our C-38 more and more we are finding that we'd like to 
> reduce the drivetrain vibration during motoring as much as possible. 
>  When going to Catalina from San Diegoit's a 10-12 hr motor and the 
> vibration can become annoying to Admiral Dorothy!  Does anyone have 
> experience with the R&D flexible coupler,  Bullflex, or any other 
> brand?  Is there a brand to definitely stay away from?  Did you have 
> to shorten the shaft or did you accept the extra distance between the 
> prop and the strut?  Thanks!.......Jay
>
> Jay L. Sorensen
>
> Director, GMP Manufacturing
>
> NovaRx, Inc
>
> 6828 Nancy Ridge Dr. Ste. 100
>
> San Diego, CA92110
>
> Ph (858) 552-8600x3543
>
> Fax (858) 638-0882
>
> jsorensen at novarx.com <mailto:jsorensen at novarx.com>
>
>
>
>
>
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>
>
>
> -- 
> Donald R. Strong
> Professor
> Dept. of Evolution and Ecology
> University of California, Davis 95616
> ------------------------------------------------------------------------
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