[Public-list] chainplates

[John Birch]

Hey Gord,

When replacing chainplates, would it not make sense to make them thicker so 
the pin/tang has better support - they seem a tad narrow and I always wonder 
whether they unnecessarily strain the forks as they end-up, without shims, 
on one side or the other of the fork/tang - thus presumably exposing an 
asymmetrical load ?

I shim mine with 6, 316 ss washers each, to reduce the problem and keep the 
tang centred - your thoughts ?

Much appreciated, see you at the Blah's on Saturday in T.O. ?!

ATB

John

----- Original Message ----- 
From: "Gordon Laco" <mainstay at csolve.net>
To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
Sent: Tuesday, March 27, 2007 3:40 PM
Subject: Re: [Public-list] chainplates


> Hi there -
>
> The chainplates may have been bent when installed.  It is always best for
> them to be installed in alignment with the loads they are subjected too; 
> but
> in keeping with the substancial but rough and ready construction of our
> boats, the knees they are bolted too are often plumb rather than raked to
> follow the angle of the stays.
>
> Regarding the length....  the precise length of each fitted to our boats
> likely has more to do with the mood of the guy cutting them that day than
> design requirements.  There will be no loss of strength if some are 
> slightly
> shorter than others so long as the same number of bolts are used.
>
> Cheers - Gord #426 Surprise
>
>
>
>
>
>
>
>
>
>> I removed my chain plates as part of the process of strengthening the
>> system as per the suggestions in the maintenance manual. I found that
>> some of the chain plates were a bit bent - after 37 years.
>>
>> Am I correct in thinking that replacement is in order? If so, any
>> suggestions about where to go to get new chain plates?
>>
>> I also found that the aft lower and the upper chain plates were about
>> the same length, but the forward lowers were shorter.Is this normal or
>> odd - and a potential problem?
>>
>> thanks in advance for you ideas.
>>
>> David, 432.
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