1968 Travelette/Travelall Fuel Tanks

[Robert Kenney]

So I had a fuel leak in the tank to filler pipe rubber coupler. I thought this would be a good time to drop the tank and fix the poorly functioning sender and replace the vent hose.

My question is, because the fsm's are worthless for some things, are the two bolts that go into the bottom of the rockers, threaded into welded on nuts? They both spin. I am sure the tanks have been removed in the past and the rockers show no signs of rust.

The tank I'm working on is the optional auxiliary one. It looks like the attach method is different than the main. The main straps do thread into a weld on nut in the rocker. The aux looks like a rivnut type of attachment device. See photos.

I hope I'm missing something.

 

[FDChappie]

Put a couple of tac welds on those nuts and see if they stay put.

 

[Robert Kenney]

I could do that but at the same time wonder if this is the normal mo for the aux tank mounting.

 

[FDChappie]

On my d series t'ette it's welded nuts on both sides, not a nut-cert like yours.

 

[Robert Kenney]

I took chapps advice and tacked the riv-nuts in place.
The sender was in poor electrical working order. The end of the resistance winding that connects to the top terminal was open. Soldered it back to its connection point. The resistance calibration was off a little at full ( read low or high resistance, so I carefully slid the windings around and got the correct reading/resistance.

The sender to tank seal was long in the tooth so I replaced it with a 1/8 viton 2" id oring, mcmaster carr # 9464k97. They are in a pack of 10 so I have enough for the next 100 years. I also sourced the replacement filler and vent hose from them.

Cleaned the tank out good and it had a lot of silt in it.

One other note is that the tank/sender does not have a good ground to the rest of the truck other that where it is held up onto the underside of the body. That was not a reliable ground, and could lead to resistance in the gauge sender circuit. So I soldered a ground wire onto the top of the tank and connected the other to the end to the frame once the tank was back in place.

Finally have a correctly reading gauge..

I'll tackle the other side soon. It can't be far behind in the failure curve and the sender is not correct there either.

 

[kevingweq]

Just curious on the tank grounds, my 67 t-all has a ground wire along with the sender wires , there is a 2 wire sender harness on each side of truck , however the grounds were never connected to anything on the tank end , I soldered a lug onto the sender when I had them out, did your 68 have the same 2 wire harnesses ?

 

[Robert Kenney]

Yes it did have the two wire harness. But the one with the slip on connector was open to all. Only the ring connector went anywhere. That was the gauge sense channel through the tank selector switch.