If the car is a petrol or gas V8 it is most likely a loose liner caused by the block being cracked, this is very expensive to fix it is normally cheaper to replace the engine. It may also be bearing noise but this is less likely if the engine does it without load.
there is no difference between a landrover 200 tdi and a discovery tdi ! A 200tdi is a discovery tdi . I think you mean what is the difference between a 200 tdi and a 300 tdi,in which case not a lot ,apart from slightly different engine and box ,rear lights and bumper and head lights and grille. basically the same motor apart from these few things
cadillac/generak motor compony
water in the fuel can cause an idling motor to sputter and/or die.
Rough idling is whenever the vehicle's motor "misses" or does not fire causing an imbalance and a loss of rotation reducing the motor's power and causing excessive shaking.
u just drop the motor by undoing the bolts
To change the wiper motor on a 2001 Land Rover Discovery, start by disconnecting the vehicle’s battery for safety. Remove the wiper arms by loosening the nuts that hold them in place, then carefully pull them off. Next, remove the interior panel under the windshield to access the wiper motor, disconnect the electrical connector, and unscrew the motor from its mount. Finally, install the new motor in reverse order, ensuring everything is securely connected before replacing the wiper arms and reconnecting the battery.
check the engine mounts
No
Motor is idling rough.
No, it will not cause the engine to knock.
the motor could pre-detonate or "knock" that can cause damage
check the anti knock sensor on the side of the motor