I decided to paint my tank on my 2000 885i. Based on bubbling issues I used the Caswell tank sealer. I put bolts in the four holes where the fuel link lines run from front to back. There is one on each side and they must feed from the front to the back. I must have laid it on its one side too long because when I removed the left side front bolt it was stuck. I eventually pulled it out but that side was filled with the sealer. I am afraid the sealer has filled in at the bottom and fuel cannot get to the left side link line.
Does this mean that any gas on the left side near the bottom will not flow to the back? May be stating the obvious but guessing that is my situation. Not sure how to fix as I used drill bit to try and clean it out but it must be too high to penetrate to the open part of the tank.
Essentially yes, the pipes allow fuel in the lobes at the front of the tank to flow back to the rear of the tank, i wouldn't worry too much, I can't see it making a huge difference
I strapped on a 1 gal roto-pax to the rear rack just in case. My fuel gauge doesn't work so I am seeing how far I can go with this situation and how much gas is actually in that area that is potentially clogged.