Good evening everybody,
as I currently have my rear quarter panels taken off the car I wanted to make use of the occasion to check whether the fuel filler recess drains are functional. I tested them with water and high pressure air. The good news is that the left one which was blocked freed up with pressurized air. A lot of black rubbish was blown out of the rubber tube.
The bad thing is that on the right hand drain where the water drained easily I didn’t get any air blowing out the tubes at the bottom (yes, the quarter panels are currently removed). Cross-checking I found that one of the rubber tubes taking down to the end of the drain has been attached by mistake to the front vent pipe at the filler cap recesses, meaning that the water in the recess pours through the lower and rearward facing opening directly into the wing and causes rust, as there’s no tube attached, while the forward facing opening with the rubber tube draining down will never be reached by the water level … duhhh
My sense of order, but also my penchant for properly functioning systems are utterly disturbed. The problem is that I shy away from a complete removal of the tank just to reattach the tube correctly to the rearward facing drain pipe. Even without the quarter panel it seems you would need an arm no thicker than an inch, but equipped with no less than 8 3D-elbows and able to exercise sufficient pressure at the end to press on some piece of rubber tube …
Frankly, I don’t expect an easy fix - it’s just that I didn’t want to miss the chance to get this one right before reassembly. Maybe someone has made experience with blocking the rearfacing drain and using only the frontfacing drain: is the drain hole low enough to work or will water get inside the tank before the drain hole actually drains?
Thanks in advance for any suggestion!
75 XJ6L 4.2 auto (UK spec)