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Tii Gas Tank Question


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The gas tank from my '74 tii project is completely gummed up (2" of tar like stuff), but generally rust free other than some surface stuff. 


However, the tank is missing the pick-up tube, aka "suction device" with sender, and whatever I need to attach the return gas line to the tank.  It does not appear that the suction device is available anymore new.


I am trying to figure out what other tanks would be interchangeable if I find a used one (with suction device, etc.).  Based on my reading, it has to be a tii tank?  And in '72, the suction device mount was different?


So, am I limited to a '73 or '74 tii tank?



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I believe if you change to an in-tank E30 318i fuel pump/sender combination, you could use a standard 2002 gas tank. The E30 pump assembly has the fuel outlet pipe - you will need a tank that as a metal pipe for the fuel return hose.

Jim Gerock

Ruby Red 73tii built 5/30/73 "Celeste"

Riviera 69 2002 built 5/30/69 "Oscar"

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to clarify what Jim said...

later normal 02 tanks had a return pipe built into top of tank, so you can use any E30 high pressure in tank pump with it.

earlier tanks did not have return built in..need to use E30 318is intank high pressure pump with these as it has a return built into the pump.

or you can use the low pressure intank/high pressure external pump combo found in early E30's in any normal 02 tank. the LP intank pump has a return built into it.


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A good radiator shop should be able to boil out your original tank and get it good and clean inside.  Failing that, I think Eastwood Corp makes a cleaning solution for gas tanks--you pour the stuff in and let it sit, then flush it out.


I managed to clean a pretty gnarly gas tank by pouring in several quarts of kerosene and a double handful of sharp gravel (!), letting it soak for a day or two, then sloshed it around for 10-15 minutes.  The gravel loosened up all the crud in the tank and cleaned it nicely.  Just be sure and get all the gravel out before you use the tank! 



'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

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