The fuel tank on my rc car seems to have a leakage. The tank is made out of plastic- so i dont think heat is an issue. But the problem is will methanol/nitromethane mix react with silicone and make the leak even worst?
2007-07-06 00:42:54 · 4 answers · asked by 47 2 in Cars & Transportation ➔ Maintenance & Repairs
The oil in the mixture will be a bigger problem than the methanol. I have always used epoxy to fix fuel tanks but the flexing of the tank material (don't honestly know what they are made of) and pressure (I fly planes and you pressurize the tank with exhaust) will cause the epoxy to break away eventually. I have had success with making the hole larger and making a fiberglass "plug" that seals on both sides. This lasted the longest but still only last a few months.
So best bet is to get another tank ordered.
2007-07-06 00:54:45 · answer #1 · answered by Drewpie 5 · 0⤊ 0⤋
Mixture of Nitro and Methanol tank cast onto the floor of a plastic chassis. My little car really went fast 300 scale miles an hour and when that hits something the chassis twists enough to split the edge of the tank. grind the crack with dermel cut off wheel wash the oily residue with automotive brake cleaner two part epoxy in the ground roughened crack and hope it can stand the flexing and vibration. Or use the dremmel cut-off wheel remove the tank go to a rc model shop and get one of those metal Airplane tanks. You might get a good fit right where the plastic tank was.(silicone) might not stick to the plastic well enough and get into the micro carburator.
2007-07-06 00:57:27 · answer #2 · answered by John Paul 7 · 0⤊ 0⤋
Here's my theory: You obviously must have a fuel level sensor in the fuel tank, right? I'm thinking when that arm with its float gets to about the 1/2 fuel level mark, the arm is pinching off a rubber hose that feeds fuel to up to the front of the car to the engine. You've done a pretty good job of checking everything else. I'm not clear on if you had the tank out to inspect that portion of it yet, based on what you wrote. Since the problem occurs only when you reach 1/2 tank of fuel, that tells me you need to check out the fuel level sender in the tank, since it seems to be an obvious correlation. If you haven't checked it out, might want to drop the tank and look inside there to see what you can see. Hope this helps.
2016-04-01 00:11:05 · answer #3 · answered by ? 4 · 0⤊ 0⤋
go to the hardware store and look in the glue dept. and look for ..i think it is called solder seal ?? it is a yellow and red tube any way it is a glue that seals oil and gasoline works great works on all kind of stuff
2007-07-06 01:02:02 · answer #4 · answered by goat 5 · 0⤊ 0⤋