Removing fuel tank to check keel bolts

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Herminia
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Removing fuel tank to check keel bolts

Postby Herminia » Tue Feb 04, 2014 10:59 pm

According to the Owner of Pier12 shipyard in Ravenna, all the backing plates on the 52 should be stainless steal. But he confirmed that on the smaller German Frers models normal steel was used. To check the bolts on the upper part, the fuel tank needs to be removed. It is actually more easy to check the lower bolts which are holding the bulb (on the 2,60m keel) because there are some soft areas filled with foam just above the bulb which can easily be opened.
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Rune
Grand Soleil 52 "Herminia"
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streetcar
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Re: Rusty mast base GS52

Postby streetcar » Fri Feb 07, 2014 4:29 am

Yes, the rusty backing plates i saw were on one of the smaller Frers GSs. The gantries for the lower bulb joint are usually encased in a GRP 'band which wraps around the whole keel.

I've attached two pics from my survey, during which the surveyor wanted to inspect the whole keel structure (all was solid).

One pic is of the removed fuel tank to get access to the thruhull bolts (you can see the pump assembly from under the central settee to one side).

The other pic shows the lower keel joint once the GRP band was removed. Each face of the keel is a stainless steel plate with a bonding agent between them. This was all dry. One of the bolt gantries can be seen filled with foam. These were cleaned out to get access to the structural bolts.

Access to both of these areas was not easy and the GRP band had to be reinstated and faired.

There are more pics if anyone is interested.
Attachments
DSC00155 2.jpg
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DSC00137 2.jpg
DSC00137 2.jpg (95.71 KiB) Viewed 4633 times

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Herminia
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Re: Rusty mast base GS52

Postby Herminia » Sat Feb 08, 2014 9:16 pm

In the picture it looks like you didn't have to remove the floor panels where the table is mounted. But how did you remove the two transversal steel bars where the pump unit is resting? They can be seen in this picture where I have just removed the centre floor section.

20140205_110739.jpg
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Rune
Grand Soleil 52 "Herminia"
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streetcar
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Re: Removing fuel tank to check keel bolts

Postby streetcar » Sun Feb 09, 2014 9:23 pm

As far as I could tell these bars just support the pump assembly and floor. They were cut to get the tank out and then spliced with steel strips to reinstate. No other way around this that I could see.

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Herminia
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Re: Removing fuel tank to check keel bolts

Postby Herminia » Sat Mar 15, 2014 2:25 pm

The fuel tank is now out and the paint/epoxy /glassfiber covering the keel bolts stripped. Look, the keel bolts look still in perfect condition after 23 years. Both bolts and backing plates are stainless steel.

Keel bolts.jpg
Keel bolts in good condition
Keel bolts.jpg (139 KiB) Viewed 4469 times
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Rune
Grand Soleil 52 "Herminia"
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Re: Removing fuel tank to check keel bolts

Postby choel » Sat Mar 15, 2014 2:44 pm

That's great.
By the way ,does anybody know the reason for adding fiberglass on top of the keel bolts? I can't see a good reason for it.
Now I just have to sand it down on my boat hand hope I've got the same luck as you Rune :D
Joel
Grand Soleil 45 "Serenity"
Currently in Lavrio, Greece

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Herminia
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Re: Removing fuel tank to check keel bolts

Postby Herminia » Sat Mar 15, 2014 2:58 pm

The guys at Pier12 said it was not necessary to cover them with fiberglass again. They will paint the area with gelcoat if I understood them correctly.
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Rune
Grand Soleil 52 "Herminia"
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Re: Removing fuel tank to check keel bolts

Postby streetcar » Sat Mar 15, 2014 11:30 pm

Looks like a very nice job. Its very reassuring to see the area in such good condition.

How did they remove the two aluminum beams which support the pump assembly?

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Re: Removing fuel tank to check keel bolts

Postby Herminia » Mon Apr 28, 2014 8:03 pm

They cut the two steal bars just like you did :-)
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Rune
Grand Soleil 52 "Herminia"
Cruising Spain

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Re: Removing fuel tank to check keel bolts

Postby Herminia » Mon Apr 28, 2014 8:06 pm

The bilge is finished cleaned and painted. Now waiting for the fuel tank to be checked/cleaned before it is put back in it's position on top of the bilge.

Bilge painted.png
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Rune
Grand Soleil 52 "Herminia"
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