After tackling some fuel issues on the 1981 380SL, I pulled the fuel tank and noticed some rust inside. The tank had already been repaired about three years ago. The strainer didn't look bad. A little brown in color, but free of clogs. There was a few large pieces of slag and MIG wire from welding, but those things seemed to be a non issue. My big concern was some rust and scale particularly at the site of repair. At least half the tank had noticable rust and scale. Long story short; I cleaned up the rust using POR-15 fuel tank sealer kit. I degreased first, then used the phosphoric acid tank cleaner. Aside from a few minute spots of light rust, the tank looks 95% clean bare metal now. I will let the tank dry for a few days and was going to seal the tank with the POR-15 sealer. This product has good reviews on Amazon, but I have Googled some horror stories of people saying the sealer would come off in large chunks, causing problems.
Now I cant decide whether to: (1)Not seal the tank at all. (2)Use the POR-15. (3)Use a different sealer or (4) have a professional shop seal it.
Any thoughts? Experiences? Will the minute spots of rust less than 5mm wide cause sealer adhesion issues?
Thanks in advance
Now I cant decide whether to: (1)Not seal the tank at all. (2)Use the POR-15. (3)Use a different sealer or (4) have a professional shop seal it.
Any thoughts? Experiences? Will the minute spots of rust less than 5mm wide cause sealer adhesion issues?
Thanks in advance