jeepingben
NAXJA Forum User
- Location
- Maine
I just finished installing a larger capacity ZJ tank on my '98 and thought people might be interested to know there is nothing preventing a ZJ tank from fitting with a Tailbone, Hidden Hitch, Ruffstuff diff cover, Rusty's gas-tank skid, and air-line for the ARB locker.
Full size pics here: http://www.jeepingben.net/zen/zenphoto/index.php?album=2016/ZJ tank in XJ
The differences between the tanks are subtle, but the ZJ tank is definitely wider.
I didn't expect any trouble with the gas tank skid since the part-numbers for the XJ and ZJ skids suggest they are almost the same part.
I was interested in extending the breather of the tank. My goal was to fit 25 gallons (ZJ tank capacity is 23 gallons). I know some people fit 25 gallons in the XJ tank, but that leaves no headspace at all.
Here is what the filler looks like from the inside. There is an anti siphon/rollover valve on the filler and a slight downward turn on the vent.
I bought a piece of soft 5/8" copper refrigeration tubing to use as the extension. After running a 9/16 drill through the vent to cut of the down-turn, I used a 5/8 ream that I had from another project to open the vent just enough to let the tube slide in.
I carefully bent the tube, avoiding kinking by putting a rubber hose inside the tube while bending. There are probably better ways to do it.
The tube is fed from the inside of the tank (a mirror helps).
I marked the length, removed the tube, and cut it. A notch on the inside of the plastic tube was added to help prevent the copper tube from rotating.
The final rotation is a little higher than this, but not much.
The tubing is deformed to lock into the notch.
The tank was reinstalled and I added 5L of fuel before driving a short distance to the gas station.
Perfect! It is right at 25 gallons and I don't think it is likely to overflow even if I were to top it up and park immediately.
The skid is back on (sorry, no pics) and I should be able to enjoy the longer range without carrying the jerry can.
Full size pics here: http://www.jeepingben.net/zen/zenphoto/index.php?album=2016/ZJ tank in XJ
The differences between the tanks are subtle, but the ZJ tank is definitely wider.
I didn't expect any trouble with the gas tank skid since the part-numbers for the XJ and ZJ skids suggest they are almost the same part.
I was interested in extending the breather of the tank. My goal was to fit 25 gallons (ZJ tank capacity is 23 gallons). I know some people fit 25 gallons in the XJ tank, but that leaves no headspace at all.
Here is what the filler looks like from the inside. There is an anti siphon/rollover valve on the filler and a slight downward turn on the vent.
I bought a piece of soft 5/8" copper refrigeration tubing to use as the extension. After running a 9/16 drill through the vent to cut of the down-turn, I used a 5/8 ream that I had from another project to open the vent just enough to let the tube slide in.
I carefully bent the tube, avoiding kinking by putting a rubber hose inside the tube while bending. There are probably better ways to do it.
The tube is fed from the inside of the tank (a mirror helps).
I marked the length, removed the tube, and cut it. A notch on the inside of the plastic tube was added to help prevent the copper tube from rotating.
The final rotation is a little higher than this, but not much.
The tubing is deformed to lock into the notch.
The tank was reinstalled and I added 5L of fuel before driving a short distance to the gas station.
Perfect! It is right at 25 gallons and I don't think it is likely to overflow even if I were to top it up and park immediately.
The skid is back on (sorry, no pics) and I should be able to enjoy the longer range without carrying the jerry can.
