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Post by lain on Jan 5, 2015 12:20:58 GMT -5
So I just gassed up today, right after gassing up my scoot started leaking tons of gas. There is still almost a full tank but it was leaking for about half an hour. This happened last time I gassed up and we thought it was overfilling, but the fuel vent hose was dry while it was leaking when I looked this time. I can't be certain where it's coming from, it won;t leak when I tip the scoot onto it's sides and when it leaks it only leaks on the left side, thankfully, because if it were on the right side where the electrical components are I'm sure it would have been reallly bad.
What's a better way to find an elusive leak? What can I use to patch it? Will metal bonding epoxy meant for hot metal pipes work?
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Post by geh3333 on Jan 5, 2015 13:18:26 GMT -5
Your gonna have to pull the tank find the hole , sand around the leak and u can use jb weld " the white kind that is specifically for gas tanks and under water " .
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Post by lain on Jan 5, 2015 13:26:12 GMT -5
Your gonna have to pull the tank find the hole , sand around the leak and u can use jb weld " the white kind that is specifically for gas tanks and under water " . I'm thinking I'm going to drain the tank into a gas can I use when I go on long trips and need to carry extra fuel on me, then fill the tank with something else that isn't flammable to simulate filling up at the station, or just to hold it in my hands and rattle it around and look. Is it okay to use water? I know you aren't supposed to get water in the tank when it's hooked up but what about when it isn't hooked up? |
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Post by rcq92130 on Jan 5, 2015 13:31:53 GMT -5
Despite what you said, I think the most likely place for a leak is (a) one of the two hoses - outlet to the pump or vent; (b) level sensor gasket. Obviously, if one of those is the cause of the leak - not a hole - then there is no patching needed.
But if you DO have a hole you may want to consider welding. I recently asked my muffler guy (a car fanatic) how to safely weld a gas tank and his response was interesting: "fill the tank with water before welding - even if residual fumes exist there can be no ignition under water b/c of the lack of oxygen"
Not sure, but I think I recall your tank is under the floor. If so, you may want to consider adding a 1 inch nipple to the tank (any convenient location). That way you can, if you want, add a second tank at a higher location, with the two tanks connected by a 1 inch hose. You fill the upper tank; the gas flows into both tanks; you now have a TWO and a half gallon tank. And if you have not gotten around to adding another tank you simply cap off the nipple - but it's there if/when needed.
Something to think about anyway.
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Post by geh3333 on Jan 5, 2015 13:33:56 GMT -5
Your gonna have to pull the tank find the hole , sand around the leak and u can use jb weld " the white kind that is specifically for gas tanks and under water " . I'm thinking I'm going to drain the tank into a gas can I use when I go on long trips and need to carry extra fuel on me, then fill the tank with something else that isn't flammable. Is it okay to use water? I know you aren't supposed to get water in the tank when it's hooked up but what about when it isn't hooked up? If you do use waster to find the leak ur gonna want to do it as quick as possible . the last thing u want is to have the tank start to rust on the inside and I'm not sure if it is lined with anything " probably not " . once u find the leak dump the water and dry the inside of the tank . if it were me I'd probably just use gas and be careful. If the inside of the tank is bare steel it will begin to rust almost immediately after adding the water . |
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Post by rcq92130 on Jan 5, 2015 13:35:30 GMT -5
Sorry - was typing while you were responding to geh.
Yes, water is OK. Just dry thoroughly and do not leave it in long enough to cause rust.
But i would just use gas. Take a short length of hose and loop the vent nipple to the gas outlet nipple on the bottom of the tank. Then simply unscrew the 4 hold-down bolts, unplug the sensor wire, and lift off. It's ionly 1 gallon (approx) and can be lifter with a finger.
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Post by geh3333 on Jan 5, 2015 13:48:05 GMT -5
U can always add an extra tank in the seat compartment and use it as a gravity fed tank. U can add a Y connector to the fuel line near the carb inlet and add a shutoff valve and filter on the new tank line. The only problem with that would be once the original tank is out of gas you will not be able to go by the fuel gauge and u would also have to add a shutoff valve to the original fuel line also . u would have to shut the old fuel tank line off and turn the new one on " be kind of a pain " when it comes to the floor tanks it would probably be a better idea to run the new tank into the old one . I was thinking of doing the same thing , however I have a gravity fed system so I could just use the Y connector and install it behind the original filter and shutoff valve and both tanks should drain evenly to the carb .
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Post by lain on Jan 5, 2015 13:57:35 GMT -5
Hmm... looks like there IS a hole! I couldn't see it with the body on but theres a tiny hole in the back top left corner behind the tail light assembly. The hole looks like it was a screw hole maybe at one point. There is an identical hole on the other side in the top right corner that looks like it was welded shut a long time ago.
Btw this is a tank behind the seat in front of the tail light. Not under the floor or seat.
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Post by ricardoguitars on Jan 5, 2015 18:11:38 GMT -5
U can always add an extra tank in the seat compartment and use it as a gravity fed tank. U can add a Y connector to the fuel line near the carb inlet and add a shutoff valve and filter on the new tank line. The only problem with that would be once the original tank is out of gas you will not be able to go by the fuel gauge and u would also have to add a shutoff valve to the original fuel line also . u would have to shut the old fuel tank line off and turn the new one on " be kind of a pain " when it comes to the floor tanks it would probably be a better idea to run the new tank into the old one . I was thinking of doing the same thing , however I have a gravity fed system so I could just use the Y connector and install it behind the original filter and shutoff valve and both tanks should drain evenly to the carb . Isn't it easier to just carry a gas bottle and pour it into the gas tank when you run dry?  |
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Post by rcq92130 on Jan 5, 2015 19:05:54 GMT -5
Yes, easier. Not a very safe practice, though
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Post by rcq92130 on Jan 5, 2015 19:09:04 GMT -5
Hey GEH! Happy NY!
Only problem with plumbing tanks together is:
you want to only have to fill one - the upper - and let gas from it fill the lower tank. But with the small 1/4 inch hose as the only connection it will take a LONG time for gas to flow, and your fill ups will be a pain.
That's why I suggested he take the opportunity, if he was going to weld the tank anyway, of adding a nice big nipple (1 inch would be fine). Then, just cap it off ----- but have it available in case you ever want to go to a second tank.
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Post by geh3333 on Jan 5, 2015 19:19:20 GMT -5
Hey GEH! Happy NY! Only problem with plumbing tanks together is: you want to only have to fill one - the upper - and let gas from it fill the lower tank. But with the small 1/4 inch hose as the only connection it will take a LONG time for gas to flow, and your fill ups will be a pain. That's why I suggested he take the opportunity, if he was going to weld the tank anyway, of adding a nice big nipple (1 inch would be fine). Then, just cap it off ----- but have it available in case you ever want to go to a second tank. Happy NY to u too . " I was thinking what the heck is he talking about , Happy new York ?" Lol . that's a good idea adding a bigger nipple connector . I'd probably want to connect the two with a 2 inch hose and connections. Just like from the gas cap on a car to the tank. |
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Post by geh3333 on Jan 5, 2015 19:21:47 GMT -5
U can always add an extra tank in the seat compartment and use it as a gravity fed tank. U can add a Y connector to the fuel line near the carb inlet and add a shutoff valve and filter on the new tank line. The only problem with that would be once the original tank is out of gas you will not be able to go by the fuel gauge and u would also have to add a shutoff valve to the original fuel line also . u would have to shut the old fuel tank line off and turn the new one on " be kind of a pain " when it comes to the floor tanks it would probably be a better idea to run the new tank into the old one . I was thinking of doing the same thing , however I have a gravity fed system so I could just use the Y connector and install it behind the original filter and shutoff valve and both tanks should drain evenly to the carb . Isn't it easier to just carry a gas bottle and pour it into the gas tank when you run dry? Well after you would add another tank it would be much easier then carrying extra bottles of fuel. No need to stop and refill just keep riding. |
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Post by rcq92130 on Jan 5, 2015 19:51:30 GMT -5
Plus, after you take a fall and the gas bottle explodes, covering you in flaming liquid, most people rethink and consider it an decent option to store the gas inside a gas tank.
ps: I think, given these tanks are only 1+ gallons and there isn't much fuel that needs to flow from one tank to the other, a 1 inch or 3/4 inch hose connecting them would do fine.
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Post by lain on Jan 5, 2015 20:00:33 GMT -5
I'm going to try the JB weld, just picked some up. I got the waterweld type, it says it is gas resistant and works well on gas tanks and even sets under water! Fancy! lol
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