'76 22 Osprey re-build

[Capt. Bob]

Gran, how far forward did you move your fuel tank? And do you feel you placed it right.

Here's a link to a post he made stating the tank location.

http://classicaquasport.com/smf/index.php?topic=12339.msg124523#msg124523

He always seemed happy (he should be) with the ride so I'd say yes the builder placed it in the right location for his particular rebuild.

Good luck.

[Que Pasa]

Thanks Bob, I will be putting a 200 4 stroke on, so not quite as much weight. Guess I should be somewhere in that vicinity though.

[Que Pasa]

Anyone else care to chime in?

[RickK]

Have you read through the early model rebuilds in this forum?  Some made the corrections to the CoG with fuel tank placement.

[Aswaff400]

i have my tank quite a bit forward but it isnt quite as long or as many gallons. my tank is 62 gallons



the aft bulkhead of the tank coffin is 8 ft forward of the transom


just 3 or 4 inches aft of the aft tower legs


even though yours is an osprey and mine is a flatback its still a good comparison. on plane with a full tank of fuel the boat rides nice and level, no tabs needed. and minimal tabs needed with both wells full. i also have my 3 trolling motor batteries below deck forward of the fuel tank

[Que Pasa]

Thanks for the replies, I'm GUESSING I should move it as far forward as possible. There will be no tower or t-top so the only other weight forward will be the batts. I dont want to be to far forward cause there is no correction for that, no trim tab can fix that. That's why this forum is great, so many have been there before. I have read the rebuilds, I have found some placements, not many. And hardly any that commented after the fact as to whether they think they placed them properly. Reaching out for help from the community. I'm sure North and a couple others are coming up on this too, so the info will be helpfull to a bunch, Thanks.

[Capt. Bob]

Anyone else care to chime in?

Why not.

Fuel is an ever changing weight in/on your hull so logic would dictate that you want its location to be as close to the center of gravity as possible so as to have the least effect on same. Since Aquas had the fuel tank located in the general vicinity of the center console, I'd venture to say that was about the CG of the hull (just behind the console).
It's where you stand to operate the boat and it gave the best ride. So unless you are moving stuff around (console forward or back) or increasing tank size (longer toward stern) I would think mounting it basically where it originally was, is a safe bet.

[Que Pasa]

I would have to agree with you bob, but something has to be said as to why Gran and others moved them farther up.

[northfork]

Que
Putting the motor on a bracket will change the center of gravity. That is why guys move the tanks forward. I made my tank a little longer then original and plan
on installing it 10" forward of original. Of course I have a long way to go to see if this all works out.

[Que Pasa]

Holy liquid asset, 10 inches? Are you putting a t-top on also?  I don't want to blow the tank placement, cause once it's in it ain't coming out. To far forward and the old porpoise effect which I don't think can be fixed. Tabs can at least help out if it's to far back.

[Que Pasa]

Looks like Aaron nailed it!

[northfork]

Que
Yes T top for sure and bait well/ leaning post combo.

[RickK]

Que - I changed the whole original design on mine.  My 170 had the fuel tank inside the console sitting on the sole.  I buried the new tank under the sole and while the new tank's capacity is the same as the original, the form factor is longer and a little wider. Based on my usage for the past 30 years I usually only had a 1/2 tank of fuel (I premix oil and gas and 12 gal equals 1 qt of oil, so it's easy to remember - I mix in multiples of 6 or 12).  I placed the aft end of the tank at the aft end of the console so it sits pretty much where the original did, weight wise with 12 gals.
I bought a used jackplate and added some other stuff and will end up with a 7 1/2" set back of the engine.  I am putting 3 batteries in the front part of the console which should compensate for the set back.  If I fill the tank to 24 gal I may have to use a little trim until I burn the fuel back to 12 gals.

[Que Pasa]

Thanks Rick, I just don't want to go to far forward. I'm hoping some other 22-2 owners will chime in and help me out. I won't have the same amount of weight as most, I wont be adding a t-top or tower.

[RickK]

You just need to offset the bracket you'll have.  Maybe 3 batteries, two for a 24v trolling motor and one for starting the engine, in the front of the console somehow will do it.