When I fill up gas, i can smell a slight raw gas smell back near the tank. So, I figure I am in for maybe the vent, vent tube, something along that line. Since I need to pull the tank down to determine the source, I also will swap out the pump and the filler neck seal and the vent etc. I dont think there is an issue with the tank itself, but it is 27 years old so should I just do a preemptive strike and order a new tank? Or is it others experience that the tanks hold up pretty well? I see the whole tank and kit with a walbro 225lph pump at LMR for $399. (Then there is the paradise penalty assessment of $209 shipping for living with Hula Girls.)
Whatever you do...paint the tank before you put it in. Por15 has a really good fuel tank paint product. I've used it a few times and it worked well. New fuel tanks are hard to get clean. The metal they make the aftermarket tanks from isn't as corrosion resistant.
I'd say replace it all if need be. The tank on my 88 was perfect...except for the top being covered in fine Indiana dust about a half inch thick.
This week, one of my classics plugged up the fuel filters so bad the accelerator pumps would not dribble when I went to start it. Then it did it again after one drive of 10 miles or less. There was black, fine powder, probably from a hose or a recent fuel pump not liking modern fuel. Lots of fun.
I'd use Red Kote just to be on the safe side. When I modified a Fox tank and installed it in my II, I must've had some miniscule porosity in the welds that fuel would seep through. I used Red Kote and haven't had a problem since.
It IS a PITA to do, that's for sure. But if you have a lot of scale or rust in your tank, you'll have to clean it out for sure. Then, if you choose to use it, that stuff can stop it from happening again. It's seemingly indestructible - when I did it I drained the excess into a drain pan that I still have and it's bottom is STILL coated with it....
He stole that idea from me. We were having a who’s new gas tank is prettier competition, but he killed me with his new rubber lines and preformed tank pads. I cheaped out and used foam tape. But yes, he has taken every part of his car he has retouched to an extreme level of perfection.