I've just received a quarter chassis and it's a brit part. I'm new to this rebuilding game and spent a lot of time reading up about what to do on a chassis. It appears that land rover chassis seem destined to turn into puff pastry as quickly as possible.
This quarter chassis part has been primed (I think) and painted black. Part of the paint has tiny bubbles in some areas and there is the odd speck of rust where they had missed bits. The most concerning thing is, if you look down the chassis tube at the rear panel, the metal is unprimed, unpainted and shiny bare, a head start for the rust.
So, down to B&Q and bought some paint stripper and red oxide. The paint stripper is doing it's thing while I'm at work and I'll use a wire brush on the grinder to strip the whole thing back to bare metal. Red Oxiding those hard to reach places, I'll just have to slosh the paint around on the inside.
When that's done I'll need to paint it with a hamerite black or similar.
I'm going to cut off the front dumb irons I've just welded on and do the same to them or we'll have a pastry chassis before I know it.
As the for existing remaining chassis. The wire brush is working wonders on the outside of the chassis. For the inside, when the ends are cut off, (front and back) I'll use a wire brush on a broom stick to get rid of the muck and bullets in the tubes, spray in a rust dissolver several times in combination with a pressure washer. Spray in Red oxide on the inside of the chassis.
When it's all back together, I read one post where they use old engine oil and spray that inside the chassis, annually. Not a bad idea.
Pictures to follow.