[Rhodes22-list] Fractured stern plate.
Pat & Mary Ann
pmadevig at gra.midco.net
Sun Sep 26 22:31:43 EDT 2010
Thanks for the suggestion Rummy. I sail on a fresh water late in Minnesota
called Maple Lake. I'll probably coat the aluminum before I install it.
Pat.
----- Original Message -----
From: <R22RumRunner at aol.com>
To: <rhodes22-list at rhodes22.org>
Sent: Sunday, September 26, 2010 11:56 AM
Subject: Re: [Rhodes22-list] Fractured stern plate.
> If you are going to use aluminum, remember that salt water will attack it
> very quickly. I would give it several coats of clear lacquer or some other
> coating to protect it from corrosion. The corrosion won't affect it's
> strength for many years, it's just a visual thing.
>
> Rummy
>
>
> In a message dated 9/26/2010 12:46:15 P.M. Eastern Daylight Time,
> pmadevig at gra.midco.net writes:
>
> Stan suggested I use aluminum for the replacement of the fractured stern
> plate, so that's what I'll use. Should be ready by spring.
> Pat----- Original Message -----
> From: <R22RumRunner at aol.com>
> To: <rhodes22-list at rhodes22.org>
> Sent: Sunday, September 26, 2010 7:52 AM
> Subject: Re: [Rhodes22-list] Fractured stern plate.
>
>
>>I recently ordered some UHMW poly ethylene from Norva Plastics. I told
> them
>> what I needed, what it was going to be used for and they cut the piece
>> to
>> size and shipped it to me very quickly and at a reasonable price.
>>
>> Rummy
>>
>>
>> In a message dated 9/23/2010 8:13:11 P.M. Eastern Daylight Time,
>> sprocket80 at mail.com writes:
>>
>>
>>
>>
>> Pat,
>>
>> If this is not a warranty repair by GB and you are going to fix it
>> yourself, I would recommend NorVa Plastics in Norfolk, Virginia.
>> http://www.norvaplastics.com/
>>
>> You can send them a sketch, the old part, or if you are really
>> computer
>> savvy, a CAD file. The will make the part from the material of your
>> choosing
>> (UHMWPE?) and ship it to you.
>>
>> Todd T.
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Pat & Mary Ann <pmadevig at gra.midco.net>
>> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
>> Sent: Wed, Sep 22, 2010 9:56 pm
>> Subject: Re: [Rhodes22-list] Fractured stern plate.
>>
>>
>> Mike
>> Thanks for the thoughtful message. I'm planing to have the problem
> plate
>> replicated over the winter so it's ready to go in the spring.
>> Pat.
>> ----- Original Message -----
>> From: "Michael D. Weisner" <mweisner at ebsmed.com>
>> To: "The Rhodes 22 Email List" <rhodes22-list at rhodes22.org>
>> Sent: Wednesday, September 22, 2010 10:09 AM
>> Subject: Re: [Rhodes22-list] Fractured stern plate.
>>
>>
>>> Hi Pat,
>>>
>>> As an engineer, the problem appears to be caused by one (or more)
>> problems
>>> as follows:
>>> 1. Motor weight exceeds design specification
>>> 2. Live load (motor, waves, wind, etc.) exceeds design
>> specification
>>> 3. Improper structural material formulation or specification
>>> 4. Damage or abuse (backed into fixed object, collision, etc.
>>> 5. Storm damage
>>>
>>> Since I must assume that Stan built the motor lift and provided the
>>> engine,
>>> one must assume that #1 is out. As good as Stan is, engineers do
> revise
>>> their designs to correct "oversights." It is entirely possible that
>>> as
>>> the
>>> 4-cycle electric start engine weights continue to increase, the design
>>> of
>>> the lift may need to be redesigned (#1, #2 & #3.) An aluminum plate
>> would
>>> seem to indicate that such a process has already been started at GBI.
>>>
>>> If designed properly, you should not be capable of damaging the lift
> by
>>> having "raised the Yamaha too high." IMHO, the only time that you
> could
>>> be
>>> at fault would be in cases like #4.
>>>
>>> Is it safe to sail? Well, make sure that your safety chain is in good
>>> shape
>>> and of the correct length so that you do not lose the motor should the
>>> plate
>>> fail. You could also have difficulty raising or lowering the motor if
>> the
>>> damage affects the mechanism. Also, be careful since the cracked
>> material
>>> can be very sharp.
>>>
>>> Mike
>>> s/v Shanghai'd Summer ('81)
>>> Nissequogue River, NY
>>>
>>> From: "Pat & Mary Ann" Tuesday, September 21, 2010 9:07 PM
>>>> Hello all,
>>>> This summer I notied a progresse, increasing series of cracks in the
>>>> stern
>>>> plate. I asked Stan about it and he thought it would be safe to sail
>> til
>>>> Labor Day, then pull the plate and replace it with an aluminum
> replica.
>>>> Has anyone had a similar problem? I wonder if it is because I raised
>> the
>>>> Yamaha too high. Any other suggestions for repair or replacement?
>>>> Pat Devig
>>>> -------------- next part --------------
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>>>>
>>
> http://www.rhodes22.org/pipermail/rhodes22-list/attachments/20100921/70899ed1/attachment.JPG
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>
>
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