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Old 10-23-2016, 03:56 PM   #141
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Originally Posted by Capt.Bill11 View Post
After all that work, there is no way I'd use anything but a 2 part poly.

If you don't like the gloss look, just flatten it.

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Bill: If I had an engine room like the boats you drive, I probably would. By the time I put everything back, most of floor, bilge and horizontal surfaces, you won't see much. I'm looking at the bling factor from the powdered coated perforated aluminum walls, ceiling and engine. See Larry's/Healhustlers post.
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Old 10-31-2016, 08:25 PM   #142
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Lena and I picked up the fuel tanks this morning. Thanks Sailor of Fortune for the trailer. This afternoon we attached the GPO3 (thanks Mark Bevins for the GPO3) to the outboard side of the starboard tank before we lost the sun. We used 4 tubes of Satin's Glue (5200). I won't need to wear gloves for a week.

We degreased the Al using acetone then denatured alcohol and then scuffed up the areas with some 80 grit and wiped again. We ran the GPO3 through a sander and then wiped that down. Pretty messy but happy with the results. We ended up using 1/8" x 3" GPO3 strips cut to length. We had some 1/4" GPO3 but felt it may be too thick and could affect the fit. We dry fitted the 1/8" and it looks like it will gives enough air space so the tanks won't have any contact point with the hull.

For orientation, the GPO3 in the pictures will go against the hull. Pictures of the inboard sides (which are on the pallets) tomorrow.

FYI: The tanks are constructed of 1/4" Al grade 5052-H32 and each tank is baffled so there are 8 chambers. I did have a clean out port added in the lowest forward inboard part of the tank. Cost: $5,229/tank including tax.
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Old 10-31-2016, 08:41 PM   #143
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Coming together nicely Larry !
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Old 10-31-2016, 09:32 PM   #144
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New Fuel Tanks

Lookin' good! Nice to have that certifciation sticker too.

Nice to have that job behind you.
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Old 10-31-2016, 10:58 PM   #145
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Ya know, Lar: That 5052 polishes up nice with 400 grit and some rouge with a soft wheel......just sayin.
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Old 11-01-2016, 07:01 AM   #146
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We used 4 tubes of Satin's Glue (5200).
Diamonds are forever but 5200 is a serious commitment.
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Old 11-01-2016, 07:15 AM   #147
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very purdy fuel tanks!
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Old 11-01-2016, 07:35 AM   #148
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Congratulations Larry.
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Old 11-02-2016, 12:13 PM   #149
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Looks really nice Larry. What is the purpose of the GP03 again? I presume it is to prevent mechanical damage against the hull?
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Old 11-02-2016, 05:11 PM   #150
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Looks really nice Larry. What is the purpose of the GP03 again? I presume it is to prevent mechanical damage against the hull?
Jim: The GPO3 is to isolate the tanks from the hull or any areas that water may collect. The GPO3 will not absorb water.

Here are a couple of links discussing GPO3.

How to Install an Aluminum Fuel Tank : Boats, Yachts - Maintenance Repair and Troubleshooting


Fuel Tank Installation | Steve D'Antonio Marine Consulting
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Old 11-06-2016, 02:37 PM   #151
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We installed the starboard tank and finished the exterior tank plywood today. I have no idea what builders used before there were hot glue guns to make templates. We got the front panel right on the first try. We'll install the perforated aluminum when we do the ceiling and have the port tank completed using the same templates.

The engine room is getting smaller which is a good sign.
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Old 11-06-2016, 03:15 PM   #152
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Bravo!
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Old 11-06-2016, 03:25 PM   #153
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Thanks Al. Part 2 is coming up. You better make more popcorn.
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Old 11-06-2016, 03:28 PM   #154
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We installed the port tank Wednesday morning and removed it Wednesday afternoon. It did not have enough contact points on the hull. How many are enough? I have no idea but there were 3' sections that had no contact. We used a bore scope and an 1/8” x 8' piece of fiberglass to check the contact at the bottom and radius against the hull.


With the tank back on the ground, we made templates of the hull contour, transferred those to plywood and and laid those on the tank. The tank was off as much as an inch in several areas. We called the tank manufacturer to verify dimensions. It looks like they mirrored the original tank (minus the 22” we cut off) and that it, the original tank, was a poor fit from day one. This may also help explain why this tank was 15 gallons smaller than the starboard tank.


With the templates, we laid up some GPO3, ¼” and 1/8” strips with epoxy to build up the exterior of the tank. We then faired the GPO3 so it would slide against the hull during the re-installation. We don't have to worry about the tank making contact with the hull now. Lots of air space. When the tank goes back in on Tuesday, it should fit as it was originally designed.
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Old 11-06-2016, 03:42 PM   #155
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Thanks Al. Part 2 is coming up. You better make more popcorn.
Damn! I don't have THAT much!! Now I gotta go shopping....

'right back....

PS. Nice recovery with Plan B!
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Old 11-06-2016, 04:13 PM   #156
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Don't block the sight glass with that wall...
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Old 11-06-2016, 04:30 PM   #157
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Bravo!
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Old 11-06-2016, 04:39 PM   #158
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Larry.... Did you have enough material? Need me to get some more down to you?
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Old 11-06-2016, 05:13 PM   #159
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Larry, sort of owe you an apology for not stopping by. Been at Ortega River Marina for several days (had a commitment in Lake City), and didn't call or stop by to offer supervisory assistance or incredible insight. When I was doing my boat, the last thing I wanted was a peanut gallery telling me how they thought I should do it. Hope the project stays on track and you will forgive my poor manners.

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Old 11-06-2016, 06:15 PM   #160
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Don't block the sight glass with that wall...
Scott: Thanks for checking. We dry fitted everything before hand and checked again this morning. I'm hooking up the old fuel system as is, with the sight tubes and we'll plan the new system later. All's good on the starboard side. Now I just have to cut a new hole in the side deck for the new 2" tank fill. Measure, measure, measure and drill once. One more pucker factor task.
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