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Old 02-04-2018, 06:51 AM
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Default Gas vs Alcohol fuel pump

I have a Mallory 5250 fuel pump. What is the difference between the gas and "alcohol only" 5250a version? I know you can convert them either way, but it seems like with alcohol being corrosive, you could run gas through an alcohol pump, but not the other way around.
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69 Camaro SS396 L34 X66

Last edited by HawkX66; 02-05-2018 at 05:15 PM.
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Old 02-05-2018, 04:35 PM
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The o-rings you need to use viton seals for alky.
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Old 02-05-2018, 05:13 PM
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The o-rings you need to use viton seals for alky.
Thanks Sean. So it seems like the alky pump wouldn't have a problem with the gas then right? I can understand why you couldn't use a gas pump with alky.
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Last edited by HawkX66; 02-05-2018 at 05:16 PM.
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Old 02-06-2018, 05:41 PM
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No it would not. Just keep your system clean after you run or drive it run some gas through because it will corrode the fuel system alky will create condensation after sitting to long.

Sean
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Old 02-06-2018, 07:50 PM
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No it would not. Just keep your system clean after you run or drive it run some gas through because it will corrode the fuel system alky will create condensation after sitting to long.

Sean
Nice. Maybe I'll throw a seal kit at it before I run it just in case. I'll check it out and see what it looks like. Thanks.
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