Mallory Electric Fuel Pump/Fuel Compatibility

[mopowers]

I was considering picking up a seal kit for my Mallory 140 electric fuel pump before these pumps and kits become obsolete and noticed they have two version of these kits - one for "gas" and one for "alcohol/methanol." The alky version is $42, while the gas version is $130.

Mallory 29819 Mallory Seal Kit, Alcohol/Methanol

Mallory 29809 Mallory Seal and Repair Kit, Gas

Intuitively, I would think the only differences would be the material used for the thin o-ring and the gasket. Can you think of any reason the cheaper alky version won't work with gasoline???

 

[GTX JOHN]

I do not understand the reasons for this either.
It might be worth checking some additional sites
to see if it is the same on them!

 

[Bewy]

I would do a forever fix & use a Carter elec pump.

 

[mopowers]

I do not understand the reasons for this either.
It might be worth checking some additional sites
to see if it is the same on them!

Thanks John. I tried calling them, but you know how that goes. I can't think of any reason an alcohol-compatible o-ring wouldn't work for gasoline too. My pump gas has ~15% ethanol anyway, so it's probably the one I want anyway.

 

[Rat Bastid]

Thanks John. I tried calling them, but you know how that goes. I can't think of any reason an alcohol-compatible o-ring wouldn't work for gasoline too. My pump gas has ~15% ethanol anyway, so it's probably the one I want anyway.

Use the cheaper kit. If it will take alcohol it will take pump gas.

Calling MSD (actually Holley) is useless. They are F’ing worthless. It’s disgusting.

 

[33IMP]

Holley bought Mallory, and then did their best to destroy it, by doubling or tripling Mallory prices (to improve holley fuel pump sales)(and the current Mallory ignition stuff is re-branded msd, also holley) I agree, with all the alcohol in pump gas now, the alcohol kit is a no brainer. Even if it weren't 25% the price.
I also like keeping your Mallory running, so you don't have to buy a holley pump.
My 20yr old Mallory 250 reman is going strong, paid $50 (maybe it was $75). That pump now is over $600.

 

[mopowers]

Thanks for confirming my suspicions. I appreciate it.

 

[Demonracer]

Email with pictures sent to you.