The Supercar Registry - Gas vs Alcohol fuel pump

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HawkX66

02-04-2018 05:51 AM

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.

Sean	02-05-2018 03:35 PM

The o-rings you need to use viton seals for alky.

HawkX66

02-05-2018 04:13 PM

Quote:

Originally Posted by Sean (Post 1387119)

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.

Sean	02-06-2018 04:41 PM

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

HawkX66

02-06-2018 06:50 PM

Quote:

Originally Posted by Sean (Post 1387282)

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. :beers:

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