In all my searching, I haven't been able to find any good photos of the optional Ford auxiliary fuel port. Since I was installing my Webasto today, I thought it might be helpful to share my experience.
Here is the aux fuel port plug (yellow clip). This pic is taken from the driver's side of the fuel tank, and the hose clamp in the lower left is the filler hose.
To remove the plug, you need to slide the yellow clip outwards so that the black rectangular buttons on either side are fully exposed. Once exposed, you have to figure out how to simultaneously depress them and lift/wiggle the plug off.
After fighting with this for an embarrassingly long time, I discovered I had the perfect tools in my arsenal: a long-nosed spark plug plier was key, plus a screwdriver to lightly pry upwards while depressing the sides of the plug:
This is what you're left with:
All that's left is to create your new fuel line and clip it on. I used the following parts (in order, right to left):
- Ford aux port adapter (PN 9C2Z-9B210-A)
- 5/16" fuel hose
- brass hose barb adapters
- Webasto coupler hose
- Webasto fuel line
I chose not to re-use the yellow "safety" clip since this connection is not under pressure. It was a nightmare to squeeze the buttons with the clip in place, and I was worried I might have the need to remove this for service in the future.
The new fuel line clips on easily, and presto! Webasto fuel line installed without having to lower or drop the fuel tank.
Fuel pump installed: