N. Thornton wrote in message ...
Interesting. I'm going to propose something similar, see what you all
thnik:

1. drill a hole into each brick: drill in thru the mortar, going down
at an angle into each brick.
2. Fill hole with new engine oil with a little paraffin added.
3. Top up later in day.
4. Make good the mortar.

I've not tried it, but I have seen this stuff soaking easily into bits
of brickwork, and it seems like it could well work on old soft bricks.
Who nose.

On a day like today the oil would probably make its way down the wall and
out on to the patio.