By no means an urgent problem this, but I'm curious just the same. I had the engine out of my 1996 Discovery last Winter and before refitting I decided that it'd probably be a good idea to replace the clutch as she'd done 160,000 miles on the original!
Having refitted the engine everything was fine for a while until gradually a rattling sound was heard coming from the transmission. The noise can only be heard when you're idle with the clutch disengaged, and becomes worse when pulling off from a standstill.
The noise got gradually worse until eventually settling on the level it is now, and it hasn't got any worse in about 9 months. The clutch is otherwise working perfectly.
I find that the rattling noise is VERY loud when I first start the engine, it dissapears when I put the clutch in, and then when I release the clutch it comes back at a lower level (which is where it stays unless I turn off and restart the engine again)
There's no way I'm taking that gearbox away from the engine again, especially as the clutch itself is working perfectly and the noise is no more than a minor annoyance. I am however curious as to what the noise might be, and wondered if you guys might offer some possible suggestions.
By the way, I'm not saying that my changing the clutch has definately caused the problem - it could easily be something else. It just appears likely to be related to the clutch replacement because the noise goes away when the clutch is depressed and I had recently replaced the clutch when the noise first appeared.
Thanks guys! (and girls?!)