I think Aluminum is OK for diesel, I would also check industrial or
automotive metal tank fabricators.
I had a custom aluminum fuel tank made for a Lotus Europa years back and it
was easy to source and buy.

Dave




On Tue, 9 May 2023 at 10:42, Bill Coleman via CnC-List <
cnc-list@cnc-list.com> wrote:

> Here are a few I can think of
>
>
> http://www.moellermarine.com/product-category/fuel-containment/permanent-fuel-tanks/
> https://www.virginiatank.com/ <http://www.virginiatank.com/>
> https://www.plastic-mart.com/category/159/marine-holding-tanks
> Bill
>
> On Mon, May 8, 2023 at 11:31 PM Matt Wolford via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> Listers:
>>
>>
>>
>>                 Hope all is well.
>>
>>
>>
>>                 First, I have a question.  A friend of mine who owns a
>> C&C 41 (probably ‘80s vintage) discovered that his aluminum diesel tank is
>> leaking.  He plans to pull it tomorrow to confirm.  I talked briefly with
>> Bill Coleman on this list, and he suggested replacing the aluminum tank
>> with a plastic tank.  Does anyone know a source for a plastic replacement
>> diesel tank that will fit this boat?  (I assume it’s about 20 gallons.)
>> Please advise.  Thanks.
>>
>>
>>
>>                 Second, I thought I’d report on a recent discovery you
>> may find interesting.  As most of you know, my boat is a C&C 42 Custom,
>> “Custom” meaning that it was not a production run boat and was built in the
>> Bruckmann shop.  Six of these  “stick boats” were built in the mid ‘70s.
>> Every year about this time of year, I get annoyed by a stubborn crack that
>> appears near the top of the forward edge of the keel, near the top where it
>> meets the hull.  As most of you understand, this is the front of the
>> so-called C&C smile.  On my boat, the C&C smile crack runs along the bottom
>> of the hull where the keel is mated, more or less parallel to the bottom of
>> the hull (the “main smile”).  However, I have a second C&C smile that
>> starts at the forward edge of the keel about four of five inches below the
>> forward edge of the main smile, then tapers up toward the bottom of the
>> hull, eventually meeting the main smile about 2/3 of the way back to the
>> aft edge of the keel.  I never understood why I get this “second smile.”
>>
>>
>>
>> A few weeks ago some water was seeping out of the stubborn crack at the
>> front edge of the main smile, and I asked my guru to find out what the heck
>> is going on.  After some grinding and drilling, he informed me that my keel
>> was probably not made to fit my boat.  Instead, the keel from another boat
>> was adapted to fit my boat by creating a lead “wedge” piece (sort of like a
>> big shim) that is widest at the forward edge of the keel and tapers going
>> aft.  This wedge fits between the top of the original keel and the hull,
>> giving me two mating seams and thus two C&C smiles.  Apparently, my boat is
>> very happy.
>>
>>
>>
>>                 Matt
>>
>>
>>
>> Matt Wolford
>>
>> C&C 42 Custom
>>
>> Erie, PA
>> Please show your appreciation for this list and the Photo Album site and
>> help me pay the associated bills.  Make a contribution at:
>> https://www.paypal.me/stumurray
>> Thanks for your help.
>> Stu
>>
> Please show your appreciation for this list and the Photo Album site and
> help me pay the associated bills.  Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

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