Front jacking point area construction

[MagicWagon]

I recently jacked up each corner of my fairly recently acquired 1981 van using the jacking points. I had no problem with three of the corners, but on O/S front, there was movement of the jacking point, and undesirable crunching sounds, so of course, I stopped immediately.
I have studied various threads on here, and pictures elsewhere, and am still unclear of the construction, and load bearing design in this area.

The outrigger seems to be in very good shape.
The jacking point (the bit that that the jack goes through) looks fairly solid but at the outside edge is no longer welded to anything. Should that be welded to the inner sill and/or outer panel/and/or outrigger
The lower portion of the B post appears to have moved outward slightly, and appears to have been patched at this point.

I presume that ultimately, the weight of the van is transferred through the outrigger at this point. Am I right ?
Is the inner sill, shorter than the outer at this point, and therefore is it the inner sill that is likely to have failed and need replacing rather than the outer sill ?
How crucial is the B post (the outer of which appears to be patched) or is that just cosmetic in this area ?
Is this jacking point an MOT failure ?

I have a family member who is handy with a welder (just replaced both front steps with him), but I'd like to know how much grief/time I would be committing (him) to before we start cutting lumps out to get a better look, so I can decide whether or not to just pay someone to do it for me.

[Plasticman]

post a picky or two up ,
easier to understand than the description,sorry
ive illustrated this construction many times and detailed the part each item plays, do you want linking to them or do you need something more/else
mm

[what2do]

You (mm) go to great lengths to post loads of pics up which I often look at but when I need to view them at a later date, I can never remember which posts they're on so I'm faced with a choice of a) go through all the posts again or b) put off till 'tomorrow'

I'm wondering how much effort it would be to take to categorise these under titles such as 'jacking points, windscreen, etc. etc. and have them put in the wiki. The problem I foresee is the volume of pics to sort as you're a prolific poster. Oh well, back to looking/searching/trawling........and then forgetting again.

[MagicWagon]

I will certainly put some pics up. Might be too dark by the time I get home for the next few days though. To my untrained eye I'm not sure how you would be able to tell from the outside what is wrong, which is why I was hoping to understand what joins to what and what should take the weight etc.
mm, I have looked at some of the threads where you have added pics. The best I can find is this one http://archive.club8090.co.uk/viewtopic ... 1&start=45" onclick="window.open(this.href);return false;, but please let me know if there is something else which will help.
From the above pics it looks to me as if the bit with the hole through which the jack passes is just there to keep the jack in the right place, and that sits under the inner sill, and the b post sits on top of that. Not sure how that links to the outrigger though it may be clearer when I get a chance to take another look. It seems also from the above that the outer sill plays little or no part strength wise at the jacking point, as it does not extend to the JP, and that there is a very small section at the bottom of the outer B post which should not be too important strength-wise (missing in pictures 4/5/6 on the above page) . That small outer section at the bottom of the B post looks to be what is giving way as I jack up, but from the above pics it looks to me like that bit should not take any weight unless its been bodged or something else is giving way.

[MagicWagon]

Pics below - looks nasty now I've got close ups. Rest of inner sill looks good, but not sure about directly over above the jacking point

[Plasticman]

well this is to the source of the topics http://archive.club8090.co.uk/search.ph ... mit=Search" onclick="window.open(this.href);return false;
but this may be pertinent
https://club8090.co.uk/forum/viewtopic.php?f=38&t=110336" onclick="window.open(this.href);return false; not got time to search the thread . but the van ended up with the lower part removed on one side and does show the construction sequence fairly clearly,
all parts are neede and whilst i agree some may seem more cosmetic but they also add to the 'whole' its a bit like a cardboard box taped up , if you remove one face then it is weakened by a disproportionate amount. so have a read and i get back to your message later after youve done so
mm

[MagicWagon]

Thanks
Yep, there are some pics in there that help understand the construction.
From what I can gather, I need to work out if the inner sill and b post are solid, as it seems that will be where the line is drawn between do-able and not do-able. Inner sill looks like it would be a lot of work to replace. Maybe it can be patched over if it's not too bad.

[Plasticman]

there lies the rub, you cant patch the inner sill at the jp from the outside , as the inner sill is the base from which the other parts connect so you would need to go in from the top ,have a look here about halfway down the page
https://club8090.co.uk/forum/viewtopic.p ... 0&start=45" onclick="window.open(this.href);return false;
mm