Seb,
I hope you are successful with your rust proofing efforts. My personal ten pence worth experience of using Kurust, and just about ever other rust proofing product on the market, is that the rust always seems to come back. This is usually a few months after one has primed and painted the area to satisfaction and, just as you have got it looking nice again,the rust bubbles break through again. After many years and many and varied cars with rusted bits, I think the only long-term fix is to cut out rusted areas and weld in good new metal.
I must admit this was fear I had at the back of my head. Given that "welding" a bumper isn't really feasible for the bumpers at least, there must be a better option? I just thought with a rust-killer, and then a rust-paint that it should survive. Anyway as you say, I hope my idea works.
Seb,
You really need to sort the rust fully on the top of the scuttle / inner wing and also on the top of the sill directly below that area. As you've sen moisture drops down there, falls to the top of teh sill, accumulates and then also rots out the lower part of the outer wing as has happened on yours. Getting those three panels, fully welded, painted and waxed is critical to keeping the tinworm at bay on an XJS.
Good luck
PAul
Yes, that sounds wise given the structural importance of these areas. I think being realistic given that the car is in a dry place now, there isn't the same level of rush that I had before, so I will get round to cutting it out but I think that will certainly be at a stage when I have the capability (or means) to have it welded.
Just as a question, I swear that the wing at the bottom was somehow "connected" to the mounting plate of the catchment tank, but on my car I just saw some very crusty rust that was sticking perpendicular to the wing but not actually meeting it?
And a second question, I was beginning my clean-up of the offside jacking point area to assess damage -
NB the car will stand, and has stood, fine on the jacking points but I don't feel happy about using them, so I use the front cross member - when I wondered what that rubber bung did. After removing it, I felt inside and found this orange (rust stained??) rubber 'stuff' and ... eughh ... yeah no idea what it belonged to or indeed where it is in the car. Pictures -->
