I could really use some good advise here from the more experienced members on the board here.
I've been slowly doing rust repair on my ZX for awhile now and I've come to what in my opinon is the hardest spot to repair on the car. What I have been doing is just cutting out the old metal and welding in new metal. Not hard but, I'm not sure this is the right thing to do in the this spot. This is the area near the gas tank right under the filler cap.
If you look closely in the picture you can see that there is metal behind the area that needs to be repaired. I afriad that the metal behind the surface sheetmetal might have the same rust. Should I just cut the metal out and then make a decision? What should I spray in there to prevent new rust? There are so many product which one do I choose?
Also, I'm a little nervous about doing this kind of work near the filler neck. Could I possibly just spray the area with some rust stopper of some sort and then use a filler to repair the area?
Thanks for your time.