MG Fuel Smell Diagnosis There can't be any of us that really like the smell of gasoline, especially inside a closed automobile. I just couldn't find any of the "normal" reasons for gasoline fumes being in the cockpit, not to mention escaping into our atmosphere, instead of staying in the fuel system where they belonged. Yes, I had checked the float level and replaced the needle and seat in the carb float lids, the normal cause of flooding and attendant fuel vapors. That wasn't it. I checked every hose, component, and connection on the fuel system and the emission control systems. All were tight and showed no signs of leaks.
Gasoline containing ethanol has become the new standard for fuel, and it presents a new set of challenges and work for classic car owners. Ethanol, made from corn or grain, is added to gasoline to oxygenate it, replacing the older additive, MTBE. Names for gasoline mixed with ethanol include E10, gasohol, corn fuel, alcohol fuel, and reformulated or renewable fuel. The key problem is that ethanol absorbs water from the atmosphere. In fact, fuel with 10 percent ethanol absorbs up to 50 times more water than standard gasoline. Older gas tanks found in many classic cars vent to the atmosphere, increasing the likelihood that moisture will be absorbed into the gas tank at a rapid pace.
Parts, tools and accessories since Made to the highest specification, these quality locking fuel caps are a direct replacement for the original cap. Most carburettor models will require a vented cap this has a green inner fitting.
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