[QUOTE=JWA;232199] Since you're on your 3rd pump now does this seem to be issues with each pump or could something within the fuel system after the pump(s) causing problems?[QUOTE=JWA;232199
Hard to say, but I'm thinking that the aftermarket pumps are pretty crappy.
[QUOTE=JWA;232199I had the benefit of discovering a leak in the tank that was so well hidden it didn't present itself until one of the straps was being removed. [QUOTE=JWA;232199
Yup, I found a hole in the top of mine the first time I pulled the tank. It was where the tank had been rubbing on the frame.
[QUOTE=JWA;232199 Since the actual pump portion of the fuel pump is separate from the motor the cooling effect might not be as effective as proposed? Can't say either way but its a good discussion.
I thought the fuel passed through the pump motor. I'll have to pull out my spare pump to check it out.
[QUOTE=JWA;232199Another good thought and yes perhaps debris would be or is kept in motion while driving but what's the downside to keeping at least 1/4 in the tank?[QUOTE=JWA;232199
The only downside is reducing the range. With a cut down tank, it's already reduced quite a bit. It's common for me to arrive at a gas station with empty jerry cans and a nearly empty fuel tank after traveling in remote areas for days.
[QUOTE=JWA;232199A very, very likely or possible scenario---great observation!
One way to test that would be an in-line amp draw of the pump while in operation.[/QUOTE]
A possibly better way would be to measure the available voltage under load, (I.E. while running) I've never seen any current draw specs for the pump, but voltage should be very close to system voltage. I'll add this to my extensive "to do" list.