my old and new baba30 tank
http://www.baba30.com/baba30fueltank.htm

At 01:54 PM 6/18/2007, you wrote:
>Rick
>Ah Haaaa!!
>
>You have answered the question why Master Haung created a 3/4"
>limber hole in the lower aft face of Pamarno's fuel tank compartment!
> Recent surveyors felt this should be a contained area in light of
> newer environmental concerns about fuel spillage, it was viewed
> from a different perspective in the 1980's.
>
>My 25 gallon tank was also on teakwood battens, that I re installed
>as they were just fine, also the 27 year old tank was not in need of
>more than a power wire brushing and cold galvanizing coating and
>Hammeral. I also recoated this compartment with bildge paint.
>The interior of the tank and welds were sound, although a 1/2 inch
>of sludge dirty with grit and goo lined the bottom and was slightly
>above the supply lift tube. I cleaned up with a spill diaper and
>thoroughly washed down with alcohol solvent, let dry and vacumned
>any remained dust. I found butyle gasket material (via a local
>Marine Diesel service CO, in Bellingham,Wa) and cut&punched for the
>faces and bolts on the inspection lid. With new lines and an in line
>12volt fuel lift pump for easier oil changes on the Volvo Penta
>MDIIC, I have respected the diesel gods.
>Pam Hooper
>Pamarno 1980, Baba 30 #88
>
>-------------- Original message --------------
>From: "Richard B. Emerson" <pavilion@pinefields.com>
>While I've believed that, about Baba owners, "there are those who
>have replaced their fuel tanks and those who will", after seeing
>OWTW's tank out of the boat, this is a much bigger "Master Huang
>surprise" than I expected. Please look on the forum's maintenance
>section for the pictures. The executive summary is that, at least
>in our '85 35, there are three glaring errors:
>
>1) There is no drainage for water trapped along the sides of the
>tank. There is some space for water to eventually leave but that's
>not the same as proper installation. At least on OWTW, the tank was
>killed by water standing, albeit briefly, along the lower edge of the tank.
>
>2) The tank rests on two rails or stringers (mad! e of gl ass
>matting over PVC pipe or hose) and wood blocks under the tank. A
>full 60 gallon tank probably weighs close to 500 lbs (480 lbs for 60
>gal. of water, diesel is slightly lighter, add the weight of the
>tank and... 500 lbs isn't hard to reach). Setting it on the
>stringers and wood blocks that will over time turn to pulp due to
>water intrusion... not good.
>
>3) The tank is held in place by cleats screwed to an aft and forward
>bulkhead. There are no straps or other hold-downs. On OWTW the
>forward bulkhead was rotting to the point of not longer being
>servicable. The tanks was ultimately held in place more by rust
>than anything else.
>
>The tank walls are about 1/8" thick; rust had reduced this to about
>half (1/16") in at least the point where the tank was cut
>apart. The prudent Baba owner would do well to check their tanks
>for rust problems.
>
>Cheers,
>Rick
>
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Received on Mon Jun 18 18:43:15 2007