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As in 4 in one area?
Yeah, plan is to take one at a time at around 1m intervals. Obviously I'll check the first one with a boroscope and see how it fares from there. Yeah, originally when I put a new kitchen in, I put a vent through and took a load of existing debris from the cavity out that caused a damp issue in the corner. There were wall ties when I looked then.
There's a couple of damaged brick faces there through freeze/thaw, but not at the level I'm looking to remove.
jbwilliamz-
As in 4 in one area?
you can remove up to 4 in a straight line in one course then leave 3 and remove another 4 etc
if you get a collapse it is limited to 3 in the course above, 2 in the course above that in a triangle, which is manageable for repair and wouldnt be catastrophic to structure.
take 2 and leave 2 is fine and will probably be enough to clear the cavity
The other thing to remember is when rebuilding, you can never push enough compo in the top gap to really be happy, so I always pack some small stones in the top gap before pointing it
sausagefingers
No more than 4 in any instance.
you might want to do less til you see what it looks like. eg spalled bricks above?
2 skin wall properly tied?
Leave the corners well alone if possible