Re: [Amc-list] Definitive fuel tank fitment

[Wrambler242@xxxxxxxxxxx]

I use a remote pump still.
Stock pickup and tank.
I always refill at 1/4 tank!
ALWAYS!!!
No, if ands or buts about it!
If you've ever seen what cavitation does to the cast metal wear surfaces on a fuel pump you'll know why!
I could not believe how abrasive it is.

Someday I may get to putting the pump in thet tank, but for now.
I got a convertible that needs built!

--
Mark Price
Morgantown, WV
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
" I realize that death is inevitable.
I just don't want to be around when it happens! "

 -------------- Original message ----------------------
From: Frank Swygert <farna@xxxxxxx>
> You can use an in-tank pump in ANY gas tank -- as long as you can get the pump 
> in the sending unit hole, which is a "no-can-do" on most older car tanks. The XJ 
> pump is one of the easier ones. It just bolts to the pickup tube. Wouldn't be 
> hard to hose clamp the pump to the old filler tube, cap it off on the outside, 
> and drill a hole for a new tube to run to the pump. The pickup sock fits right 
> on the end of the pump. If you don't have a sump area around it you'll only be 
> able to run down to about 2-3 gallons of gas, then it will suck a little air. So 
> when the gauge reads empty, IT'S EMPTY!! Use the stock sending unit, just make 
> sure the pump doesn't interfere with the swing arm (may require a little 
> bending). The pump itself is about 2"-2.5" in diameter. If you have a 4" hole in 
> the tank it might fit! Don't think you'd get it in a 3" hole, but if it's a 
> little larger than that...  Of course you'll have to run a wire out to power the 
> pump too. Run that through the sending unit 
>  cap. Use "gas tank repair" epoxy putty to seal the new pickup tube and wire in 
> the sending unit cap. Regular epoxy, even JB Weld, won't hold up to gas fumes! 
> Any need to ask how I know? I made some JBW repairs and 6-8 months later they 
> started seeping fuel again. 
> 
> The XJ sending unit is NOT the same as other AMC cars. Ramblers use the earlier 
> Ford type with a 9-63 or so ohm range. Starting in 78 AMC went to the late model 
> Ford type that uses a 31-248 ohm range. Highest ohm reading is empty, lowest 
> full. The Pacer and Matador continued using the old style sending unit until 
> they were phased out, as did the the SJ trucks and CJs. My 93 Jeep TSM says the 
> sending unit should read 5-105 ohms. Doesn't say which is E or F, but I would 
> suspect it's the same as all others -- high reading is empty. So you can use the 
> pump, but not the sending unit. It's not hard to buy a universal sending unit 
> and mount it on a pickup tube that has had the original sending unit taken off 
> -- I'm running one like that now. 
> 
> -------------
> 
> > > " From: "Dan Strohl" <DStrohl@xxxxxxxxxxxx>
> > > " 
> > > " Jim-
> > > " 
> > > " For my 4.0L 79 AMX, I actually used an XJ Cherokee fuel tank. The only
> > > " thing I had to do was relocate the fuel filler to the center rear.
> > > " Otherwise, it's the exact same shape and size, and if you're swapping to
> > > " fuel injection, you can still use the stock XJ fuel pump.
> > > 
> > > this suggests you could've swapped the xj pump into the amx tank.
> > > possible?
> >   
> 
> Ooh, good catch!
> 
> Does the XJ use the same fuel sender/pickup system as the older AMCs 
> (and apparently Ford, and many others), and it all fits in the hole? 
> That would be a hell of a good thing. The pickup tube and float and 
> lever would have to be changed, but that's a straightforward mechanical 
> fab task.
> 
> -- 
> Frank Swygert
> Publisher, "American Motors Cars" 
> Magazine (AMC)
> For all AMC enthusiasts
> http://farna.home.att.net/AMC.html
> (free download available!)
> 
> 
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