Land Rover Repair: Coolant flush TD 5 ,How to do ?, coolant leaks, coolant pump

Question
John,

Can you give me a short description on how to drain the cooling circuit of de D2 ? (TD5)
I do not have a instuctian manual and cant get the system empty enough.
I am planing to put new coolant into the system because they put the wrong one in.
I searched the web to see if i couls find a description but your story come's the most close to my problem.

Thanks in advantage, greetings from Holland, Jan Huizing  

Answer
Hi Jan,

Here's what LR has to say about Disco II V8's:

ADJUSTMENTS 26-2-13
WARNING: Since injury such as scalding could be caused by escaping steam or coolant, do not remove the filler cap from the coolant expansion tank while the system is hot.

Drain
1. Visually check engine and cooling system for signs of coolant leaks.
2. Examine hoses for signs of cracking, distortion and security of connections.
3. Position drain tray to collect coolant.
4. Remove expansion tank filler cap.
5. Remove drain plugs from LH and RH sides of cylinder block and allow cooling system to drain.
6. Disconnect bottom hose from radiator and allow cooling system to drain.
7. Disconnect top hose from thermostat and position open end of hose below level of coolant pump inlet, to allow coolant to drain from the system.

Refill
1. Flush system with water under low pressure.  Do not use water under high pressure as it could damage the radiator.
2. Apply Loctite 577 to cylinder block drain plugs.Fit drain plugs to cylinder block and tighten to 30 Nm (22 lbf.ft).
3. Connect bottom hose to radiator and top hose to thermostat housing. Secure with hose clips.
4. Prepare coolant to required concentration.

end.

The two plugs mentioned above have square heads and are easily recognized on either side of the engine.

Best of luck,

JohnMc