I mentioned a month or two back that I had an annoying rattle in the
van under certain engine load conditions. Happened on David B's visit,
so it is his fault :)
I thought I had it licked when I tweaked an exhaust pipe with a large
pry bar. But it came back, tweak again, and then it came back.
So today I took off the muffler, dropped the skid bars, and removed
the engine mount carrier. I found a loose bolt, the centre one of the
three that holds the cast aluminium carrier to the engine. I think
this was the problem all along, the loose bolt allowed the bottom of
the carrier to vibrate, or knock, against the engine case.

It is surprising how much crud and dirt gathers on the cast aluminium
mount. Not surprising is how much of that crud gets on your face.

alistair