Outrage 77-gallon Fuel Tank Dimensions

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
Spc337
Posts: 21
Joined: Thu Aug 10, 2017 4:44 am

Outrage 77-gallon Fuel Tank Dimensions

Postby Spc337 » Fri Aug 10, 2018 12:40 pm

I’m pricing various options to replace [the fuel] tank in my 1979 Outrage 22. I’m searching for tank dimensions.

I’m sure someone has replaced their fuel tank on a 1979 OUTRAGE 22 and has drawings from their tank supplier. Can that someone send me the drawing or the dimensions?

I spoke with Chuck Bennett. I was surprised that whaler doesn’t have the drawings and he suggested FMT would--but unless I purchase the tank first, they won’t share them. I’d rather not pull my deck and fuel tank just to get the measurements. Of course I will have to [remove the existing tank] eventually.

Either 70- or 77-gallon dimensions are fine, as I’m just trying to get estimates.

I’m going to base the estimate on 0.125-inch thick aluminum. Also, I plan to speak with Moeller on a custom tank for a plastic option.

Thanks
Boston Whaler 1979 V-22 Outrage

HOLYSTEEL
Posts: 1
Joined: Sun May 14, 2017 1:38 am

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby HOLYSTEEL » Mon Aug 13, 2018 7:12 pm

This is for a 1989 20 OUTRAGE:

70 L x 22 W x 13.75 D
The tank bottom is V-shaped. [This tank says] 77-gallons on the capacity.

Send me an email and I will send you pictures of the tag, manufacturer, and bottom shape.

My tank is out [of the boat] as we speak. Thanks Mark

Spc337
Posts: 21
Joined: Thu Aug 10, 2017 4:44 am

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby Spc337 » Mon Aug 13, 2018 8:28 pm

That should be the same as the 22 from what I understand. I’ll PM my email.
Boston Whaler 1979 V-22 Outrage

steelhead55
Posts: 22
Joined: Mon Jan 11, 2016 12:46 pm

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby steelhead55 » Tue Aug 14, 2018 6:32 pm

Hi

I restored my plastic tank on my 1979 revenge just a few months ago, and did write down the dimensions of both the tank and compartment.


Tempo Tank dimensions.png
Tempo Tank dimensions.png (9.44 KiB) Viewed 93 times


22 Revenge cavity dimensions.png
22 Revenge cavity dimensions.png (8.61 KiB) Viewed 93 times


If you would like to see what the cavity looks like, and a few of the modifications I made to the fuel tank cavity, please visit my shutterfly page.

https://garys22revenge.shutterfly.com/

Our boats should be identical below the deck.

KARLOW
Posts: 11
Joined: Tue Jul 03, 2018 3:20 pm

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby KARLOW » Sun Aug 19, 2018 10:26 pm

It's not that simple. I have just done the tank on my 83 Outrage. The tank and locker are a complex shape. There is not a lot of room for error. The shop that built my replacement tank resulted in a tank that is about 1/2 " skinnier about 3/4" short and about 1/2" taller. Yep after I installed it , foamed it and sealed it, I found out it was a bit too tall! There is not a much extra space in there. The tank could have been reworked, if I had not installed it. I ended up moding the floor and the inspection hatch where the fuel inlet is. The cross section of the tank is not symmetrical. See the attached, u might want to recheck your dim!
Attachments
Tank cross extra small.jpg
Tank cross extra small.jpg (125.2 KiB) Viewed 51 times

Spc337
Posts: 21
Joined: Thu Aug 10, 2017 4:44 am

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby Spc337 » Sun Aug 19, 2018 11:53 pm

I’m considering pulling my tank out to do a complete test and then refoam. I’ve never done that before. Any views on how complex?
Boston Whaler 1979 V-22 Outrage

Spc337
Posts: 21
Joined: Thu Aug 10, 2017 4:44 am

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby Spc337 » Sun Aug 19, 2018 11:58 pm

I’m probably more concerned about pulling the rigging and rewiring. At least I can clean up the mess there now and perhaps move the batteries to the console too.

I keep reading that foaming in the tank, while originally done that way, is perhaps not the best. Installing it on a cradle to allow air circulation and adding a drain may be a better approach. What are your plans?
Boston Whaler 1979 V-22 Outrage

steelhead55
Posts: 22
Joined: Mon Jan 11, 2016 12:46 pm

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby steelhead55 » Mon Aug 20, 2018 6:08 pm

Hi

IF you look at this pic, https://garys22revenge.shutterfly.com/pictures/132 and this one of the plastic tank https://garys22revenge.shutterfly.com/pictures/123(70 gallons, originally installed in 1979), the tank cavity is indeed symmetrical.

The dimensions on the drawing are nominal. For example the bottom of the tank cavity is rounded, it does not come to a point, and the sides are not quite vertical, angling out. So while the bottom of the tank cavity is 72 inches long, the top of the tank cavity is actually closer to 74.

Looking at your tank, it is clearly not symmetrical.

As far as foaming in a metal tank, I feel that is a mistake. Allowing the tank to get completely dry, is the most important thing for longevity. I can say that on my plastic tank, the foam - tank interface was wet, and had been in that state for decades. At a minimum I would recommend modifying the tank cavity to allow the occasional removal of water from the tank cavity. I added an fiberglass drain tube (1" id) between the fishlocker and the tank cavity.

Spc337
Posts: 21
Joined: Thu Aug 10, 2017 4:44 am

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby Spc337 » Mon Aug 20, 2018 6:29 pm

If I end up finding a plastic tank, I would think that foam is an ok option since the plastic won't degrade from the exposure like a metal tank does. Or would you still opt to have a drain or some method to remove water?

Do you have a tag on your tank? I wonder if I can still get a quote from that manufacturer.

Thanks
Boston Whaler 1979 V-22 Outrage

steelhead55
Posts: 22
Joined: Mon Jan 11, 2016 12:46 pm

Re: Outrage 77-gallon Fuel Tank Dimensions

Postby steelhead55 » Tue Aug 21, 2018 2:07 pm

The tank was originally made by Tempo, since bought by Moeller. If you look at my website https://garys22revenge.shutterfly.com/ you can see lots of pics of the tank and cavity. The tank is not available, and has not been manufactured for decades. I did foam mine in.

In the process of looking for a replacement, I did find a couple of Moeller below deck tanks that sort of fit. Your probably best off with an aluminum tank, but if you do try a moeller, please show the results here.