Crucial that I nail these welds. The sill situation isn't desirable as I'm welding on every face in the same place and it's that close to the body mount. I've kept some scrap chassis and box section to practice. Going 3mm with the sill stuff and 2mm with chassis. May even add a little panel of 3mm on the outside of that will to up towards drivers door as a kind of strengthening bar.
2mm is plenty, remember what I said about the drilling through.
If your sills are bad you could box section them.
https://www.themetalstore.co.uk/products/3-6mm-thick-mild-steel-rectangular-box-section
120X60X3.6mm a 3mtr length will do both sides and it works out a lot cheaper than YRM/Froggats replacement sill sections.
If your sills are bad you could box section them.
https://www.themetalstore.co.uk/products/3-6mm-thick-mild-steel-rectangular-box-section
120X60X3.6mm a 3mtr length will do both sides and it works out a lot cheaper than YRM/Froggats replacement sill sections.
As in wack bolts through template then oversize holes in patch to get welds in? I'm going 3mm on sills as box section is at least that- might be 4
Becareful of the heat melting the mount ... a little and move ... repeat as required ....
Hadn't thought of that. Will do cheers
Yes or long 10mm drill and drill right through once welded, either or works well.
it isnt when yu take into account the body mounts and the floor support and closure panels.
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Each section is a single skin 1.5mm and there are no double skins bar the overlap where they are spot welded together, the 2mm is heavy enough and as long as it's fully seam welded it's more than man enough.
Jury is still out on my own sills, I have measured them and still might do them but not 100%, still 50/50 as its a lot of work for little reward at the mo as my sills are in good order for now. If and when I do them I will get one capped and tapped by a pro and use it as an air reservoir for an on board compressor.
i was talking about the cost
Cost wise I would most likely be able to salvage body mounts and even if I couldn't I could most likely make them and not need to buy, found some 100X5mm flat plate in the yard and when I get a chance I'll lop some off for home use, a meter or so will last me a decade or 2 lol so fairly sure I could keep my costs low as in the price of the box section.
Is that the marker in the first picture of post #240?
Dixie1985
Member
This probably seems like a really stupid question but do you mean a sill as a air reservoir?
Yes, exactly that, it would negate a need for a reservoir taking up space in the cab somewhere.
Dixie1985
Member
Is that actually possible with the pressures Likely involved? If so that's an absurdly brilliant idea
Looking at gas cylinders, propane for example is only 2/2.5mm thick and withstand 250psi easily, I would expect a 3.6mm/4mm rectangular box section to withstand 100psi without distortion, air lockers run typically 85psi so there would be little if any need to go above that pressure.
Dixie1985
Member
I don't know much in regards to pressurised equipment so probably wrong but I thought the fact that the tanks were cylindrical had something to do with it's effectiveness. Also if you could/did pressurise a section of sill and then ruptured it while off reading wouldn't the resulting pressure release be dangerous for any occupant?
