Hi guys, I have not long purchased a 93 defender 90. It is fitted with a 200 tdi. I am just after some advice, on tick over it rattles and vibrates a fair bit but if I pick the revs up slightly it goes. I know I should expect rattles and bangs but this vibration is quite annoying, I have checked all engine/ gearbox mounts and exhaust and all look in order. Any ideas?? Thanks