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#1
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Gas Tank Issues?
I have an 1990 18 sport. I want to upgrade the fuel lines so that they can now handle ethanol. Are there any concerns with the gas tank as well? What material is it made out of? If anyone has had to replace one, how difficult or expensive of a job was it? Thanks for the help.
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#2
01-12-2009, 04:38 PM
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I don't know what material yours is made out of but ethanol is bad on everything including poly tanks which yours may be also (mine is) but I dont have the same boat but my newer cuddy (1990) is made of poly. It hasn't bothered mine yet that I can tell. A product called Store and Start (gas treatment) does leave a yellow coating on everything and seems to protect the items it comes in contact with and ethonol doesn't wash it off. It's sold at Wal-mart and marina's.
__________________
Tis better to be quiet and thought a fool than open your mouth and prove it!! 1991 V-20 cuddy I/O 350 volvo duo prop, 1998 15ft Grumman 9.9 Johnson  
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#3
01-12-2009, 04:52 PM
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I replaced (2) tanks in (2) different V-20's. I think by 1990 they were using Poly tanks but I can't say for sure. There was a post here a while back where some guys had aluminum tanks and others had poly tanks in the same year boats. Shop around for the best price on the Fuel hoses, the Fuel Fill hose is really expensive.
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#4
01-12-2009, 05:04 PM
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Thanks guys. I'm pretty sure my tank is a poly tank. I can smell some gas which has me a bit worried. I'm hoping its just the fuel lines or a leaky conection. Is there a way to pressure test the tank to find out if it has a leak?
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#5
01-15-2009, 06:57 PM
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On my 19' wellcraft 1986 the tank is poly I was also concerned that the e-10 gas maybe a problem. I called wellcraft and they said that there is no problem with the tank and todays gas, but that the gas fill and vent line must be replaced as they would be a problem. As I have the floor ripped out now I would have changed the tank. Now I'll just change the gas lines along with the stringers and deck. All I need is some nice warm weather to start this work. I just picked up a 1989 Mako 220 with a evinrude 225 E-tec (2007) yes I'm also a member of the classicmako site.
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#6
01-15-2009, 07:23 PM
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Poly should be just fine!! But all the old hoses have to be replaced, and double clamped.
And as said the hoses are $$$ so shop around!
__________________
1986 V20 Old Fishermen never die, we just SMELL that way!!
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