Re: Flushing the Radiator?
My tip is be careful, im doing mine now and i accidently took the head off the drain plug, so i have to drill it out tommorow, yay for me :)
Make sure the engine is cold, take the drain plug off, drain it, jam a garden hose into the hose coming going to the pump (doing this will disslodge any gunk in the radiator, well hopefully) then once the water is coming out clean from the top of the radiator, for good measure bung the garden hose into the top hose and clean it out the other way.
Thats the radiator done, now you need to do the engine. Car needs to be on ramps or hoist for this exercise, get under the passengers side of car, and disconnet the water hose thats under intake manifold number 5. Shove a garden hose in that, and let water flow through for a good few minutes and make sure the water is clean when coming out.
Now its flushed, time to put everything back together and fill with your favoured coolant (Im using RedLine WaterWetter & some antifreeze (2L to be exact) Fill to the maximum line in the overflow bottle. Turn car on (radiator cap is OFF), get up to normal running temp, turn heater on FULL heat and FULL pressure/flow.
Watch the overflow drain of some water (into engine) make sure while its doing this you top it up to max, never go over max, let it idle for a couple of mins when theres no more need to add water. Put the radiator cap on, leave to run a bit more, then your all done.
This is the method i use and the method described in the gregories manual. Hope it all goes well, and dont be cheap on coolant, use the best stuff.