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Author Topic:   Montauk fuel tanks
specktrout posted 08-04-2001 03:07 PM ET (US)   Profile for specktrout   Send Email to specktrout  
I have an 89 montauk with the original steel paired 12-gallon tanks. I would like to replace them with another set of paired tanks as I always know when to head for home when I run the first tank dry. After reading the many posts on the tempo tanks, I am still confused. The Tempo website lists 2 12 gallon tanks the PBW12 and ULTRAPBW. Is the ULTRA tank really the 13-gallon tank people have been talking about? There seems to be difficulty getting these tanks to fit under the montauk seat. Is the problem the tank or the high tank caps? Some people are cutting off the high "dog-ears" on the side of these caps- do they then fit? Do these tanks fit onto the original floormats which held the original tanks? If any other montauk owners out there can answer these questions, your help would be very appreciated. -Thanks.
Dick posted 08-04-2001 06:46 PM ET (US)     Profile for Dick  Send Email to Dick     
I am a wholesale distributor for Tempo as well as a Montauk owner.
The new 13 gal Ultra PBW will not fit under the seat. I don't know about shaving the ears down, if that will do it. I am using the Tempo C2814 27 gal tank under the seat of my Montauk. Fits good, you need to remove the tank mats, and only one tank to mess with.
kamml posted 08-04-2001 06:58 PM ET (US)     Profile for kamml  Send Email to kamml     
I agree that one tank is the way to go. I converted over from dual tempos to a single Pate 27 and am glad I did. No more fiddling around trying to get the oil mix just right. Add 12 gallons or 18 or what ever at a time. Go with a large capacity single and you won't be sorry. You can always carry a spare six if you worry about getting home on half a tank.
bdb posted 08-05-2001 07:13 AM ET (US)     Profile for bdb  Send Email to bdb     

I installed a pair of the ultras in my Montauk. They will not fit if you keep the original tank mats. I used a couple of basic pure rubber "welcome" mats ($4.70ea). This has an added benefit of providing a static electricity barrier between deck and tank. They jjuuuuusssst fit. The high fill caps rest against the stainless rps tube running under the seat and keep the tanks from sliding forward. The starboard tank has to be wiggled to port to clear the top of the rps base that supports the seat, and then can be slid back toward starboard. I added 2 holes to the rps base and hook a simple nylon strap to them to keep the tanks "belted" in place so they don't slide aft. It all works out fine.

My paranoia likes the redundancy of 2 tanks. If you happen into an area where gas can be suspect you can always fill at 2 different locations, thus having different fuel in each tank.

Harpoon Harry

triblet posted 08-05-2001 09:42 AM ET (US)     Profile for triblet  Send Email to triblet     
Why is a static electricy barrier to the deck
a good thing? No barrier = no voltage diff
= no spark. Besides, once the mat gets wet
there's no barrier anyway.

And I'd be nervous about using the cap to
keep 100 pound tank from sliding around.


dgp posted 08-05-2001 11:46 AM ET (US)     Profile for dgp  Send Email to dgp     
In addition to the bungee cords used to hold down my 6.6 gallon tanks I use that grippy, perforated, vinyl, shelf liner material between the bottom of the tank and the mat. Got it at Wallyworld. Tanks don't slide around at all.

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