The Jag tanks are steel. There is a bit involved in getting them out, But they are a known quantity, though thet have an odd construction in that the joint seam is inn a vertical orientation, so and water tends to want to get trapped in the seam and rust. tere is a solution once out they can be chemically cleaned and a sealing goop can be applied inside that prevents any water that might get in from getting to the seam. Of course the horizontal mounting of the twin fuel filler necks allows for the possibility of water to get in when the drain holes get blocked, but as I been around the old XJ6s and XJ12s for most of my life I know about this, so I keep those drain tubes clear. this horizontal fuel filler problem is also shared with my Triumph TR7.

Read More...