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Ford 9N, 2N & 8N Discussion Forum
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Mythbusters?

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Rob N VA

08-24-2005 19:34:17




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There is a show on the Discovery channel called Mythbusters where two dudes try and dispell or prove urban legends. Tonight, they poured sugar in a gas tank of a test engine (small block v8) and the engine never missed a beat. Is this just hollywood, or is the old sugar in the gas tank really not a effective method for destroying an engine?

I'll tell ya'll conclusively that a handfull of grass seeds inside the distributor cap of an 8N will stop it dead in its tracks. I know, because that's about how much I dug outta mine this past weekend. I am shocked it ran at all. I wonder how all that seed/debris got in there.

Rob

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rurlndum

08-25-2005 19:37:46




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
Sugar does not dissolve in gasoline.



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Dean

08-25-2005 06:28:59




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
The earlier posters are on the right track. Sugar in the fuel will indeed cause problems but usually not immediately. I'm confident that the Mythbusters were much more interested in producing a marketable production than they were in the actual effects of the sugar upon the fuel system of the car.

Dean



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FarmerDawn

08-25-2005 05:55:31




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
I actually know a woman whose engine was wrecked because someone poured sugar into her gas tank maliciously. I was there when the mechanic told her that's what had happened. It didn't totally quit, but it ran worse and worse over a period of days, and cost a huge amount to repair.



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John IL

08-25-2005 05:53:20




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
Back in highschool, someone poured sugar in the tank of my hotrod. I had a smallblock chevy 350. I found out about the prank a few weeks later when my carb started flooding out. The carb bowls were packed full of disolved sugar as was the fuel pump, fuel filter, and fuel line. I don't think it did any damage to the engine, but I had to rebuild the carb, replace the pump, drop the tank and flush the whole fuel system. It may not have destroyed the engine, but certainly did muck things up. I drove the car several hundred miles before discovering the cause of the flooded carb.

John

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Bill in WI

08-25-2005 05:30:07




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
I thought the real problem was after the engine and residual sugar cooled off and gummed things up.



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Paul K in IL

08-24-2005 20:36:54




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 Re: Mythbusters? in reply to Rob N VA, 08-24-2005 19:34:17  
How long did they run it? That sugar went somewhere and I would be willing to bet it didn't all go out the tailpipe. Burnt sugar on the exhaust valve will definately cause problems. I bet in 10 hours the engine will be junk.

Paul K.



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gahorN

08-26-2005 01:02:45




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 Re: Mythbusters? in reply to Paul K in IL, 08-24-2005 20:36:54  
Sugar carmelizes during combustion and eventually causes stuck rings...which can lead to broken rings...which can lead to scored cylinder walls. Depending upon the fuel components (modern fuels are different than the old days in many ways) and how much dissolved/suspended water is present, the sugar will dissolve and then damage components like injectors, pumps, carbs, passages, etc



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