Sound quality isn't all that good, but you can hear the noise just as we slow down to pull up behind the Ka. It sounds like a pulley of some sort rattling on a knackered bearing, but so far everything I've looked for has drawn a blank.
Had the clutch replaced, transfer boxes rebuilt, and gearbox oil changed, but as it happens whether the clutch is in or out, whether the car is moving or not, I'm thinking it's engine-side rather than gearbox-side. It tends to disappear at anything above 1500rpm, so coasting to a stop, idling, etc. is when it happens. All the pulleys I've checked are good, so I'm stumped now. Don't want to spend an unknown amount of money tracing the issue if someone on here knows what I should be looking for.
Doesn't appear to affect the driving of the car, all gear changes are smooth, no decrease in performance, just a god-awful noise that is getting to be REALLY embarrassing when idling at traffic lights in the middle of town.
Any suggestions appreciated, cos if it goes on for much longer I'll be torching the blasted thing.