[Wayne 962]

Yes, one could theoretically do that, but there's no way to get that line then back into the engine compartment (through the fire wall). There's no big access hole there. Plus, you'd have to plug the hole from the inside (very difficult), and then that might leak later on. Good suggestion, but poking a hole in the back to access is probably less painful.

I might drill a small 4mm hole in the back of the left side later on to take a closer look. I'm at the stage now where I have no other options?

-Wayne