Originally Posted by leslane
Replacing the in-tank fuel pump is no small endeavor, in that draining and dropping the tank is the biggest part of the job. The electric fuel pump located in the tank has the fuel level sensor, the electric pump and a strainer on the intake side of the pump. It all comes as a unit and can be a pretty pricey job when not done yourself. Mexican fuel has always been a problem with contaminants and you sort of "pays your dollars and takes your chances" so to speak. There is really no easy way to filter the fuel that goes into the tank as I assume you already know so that leaves the little filter on the intake side of the fuel pump to protect your fuel system. The inline filter between the tank and the engine will trap most all of anything that gets by the intake filter. I always carry a couple of these wherever I go with my rig as they are easy to change and cheap, $5 to $10 apiece. However, if the intake filter in the tank gets plugged with debris, then the only alternative is to drop the tank and change it out. If I were worried about this, I would do it well ahead of time and physically inspect the new "pop can sized" filter to ensure that it really is bigger than the original. Frankly, I have never seen one that size in all my years of turning wrenches. That doesn't mean that they aren't out there but for these applications, I'm sure that one could be made. So, again, if that is a concern, then I would replace your pump assembly now before you hit the road south. Just my two cents.
How big would the debris/contaminants in Mex-gas normally be, to cause a problem?
Could you buy a couple of large capacity gas containers, get one filled(tell them you cut lawns),
then syphon/transfer the gas from it to the other "clean" one (or into the RT's gas tank),
using some sort of portable strainer/filtration system to clean it up? Might be a bit of a pita,
but might be cheaper than replacing the tank/pump/filter.
I wonder if a Carquest or Napa or Pep Boys or some other car parts specialty store
might have something to do the gas cleanup before it goes into the tank?
Or perhaps a fuel pump manufacturer might give you some ideas.
Failing that, could you set up some sort of portable syphon/filtration system using
a 12V DC powered automotive fuel pump that could be used to filter the gas as you
fill your tank? It could have a simple cord and cigarette lighter power plug for use at
your campsite. The military must have something like this, as they must run into
situations where they need to move fuel quickly from one vehicle to another, and
filter it at the same time, I'd think.
I googled "portable gasoline 12v dc fuel pumps" and got a list off this site
Just some (crazy) ideas?