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Replace fuel tank?
Hi everyone. I am facing a dilema and need some opinions from the experts.
I have an '84 V that is running well. I have to repair the deck cover over the tank (it has a small soft spot), and was wondering if this would be a good time to replace the fuel tank? The tank itself, which is aluminum, appears to be in good shape, with no obvious signs of corrosion or wear. Should I go through the trouble of replacing it now when there are no problems, or wait until I need to? If I replace it, I would like to put in a plastic replacement tank. I have looked at most of the previous posts on tank replacement, and would like the best place to buy one if I decide to do it.
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Roger '84 V20 with 2000 150 HP Yamaha 2 stroke 
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#2
07-09-2010, 08:36 AM
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Given that with the new crappy gas we are getting plastic tanks only seem to be good for a much shorter time than they used to be I think I'd go with alum.... (unless I knew a good metal works place that would make me one out of stainless steel). Just my 2 cents...
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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#3
07-09-2010, 08:42 AM
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if it ain't broke don't fix it.
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 1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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#5
07-09-2010, 07:03 PM
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I am with skools, why fix something thats not broke??
Besides that cover is just as easy to get off when and if you ever have to replaced it.
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1986 V20 Old Fishermen never die, we just SMELL that way!!
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#6
07-09-2010, 07:33 PM
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Assuming the tank needs replaceing just cause of soft spot in tank lid is over-thinkin the situation...the soft spot can be easily repaired, but there's NOTHING easy about pullin a tank...if you have no indication of a leak or other problem, just take care of the soft spot...search for tank lid repairs on this forum...it's been don several times w/great success!!...good luck and let us know how it goes...we like pics of projects like that..helps everyone...
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'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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#7
07-09-2010, 08:45 PM
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Thanks guys, you convinced me, I'll repair the tank cover in the fall, and leave the tank alone until it needs to be replaced.
In the meantime, I'm just enjoying the V!
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Roger '84 V20 with 2000 150 HP Yamaha 2 stroke
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#8
07-09-2010, 09:01 PM
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I had that same dilemma this spring...I even have the tank already...a custom made aluminum that came out of a 86 V20 about 3-4 years old....had the hatch off to fiberglass it...took one look at the tight fit and all that foam and said......NFW
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1986 V-20 1986 Yamaha 150 HP
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#9
07-12-2010, 09:30 PM
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I would have the tank pressure tested....mine was foamed in and looked OK from the top....I pulled it anyway to clean it out as I was having fuel/engine problems...it was a pain because it was foamed in, but I'm glad I did because I had thin spots and a few pin holes in the tank which I would have never seen unless it was pulled or tested.....bought a new tank.....it was on a 87 v20
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#10
07-13-2010, 09:06 AM
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Quote:
ROFL (I'll even bet I know where you got the tank) 
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God) Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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