DRAINING
THE COOLING SYSTEM
1. Remove the cap from the expansion tank.
2. Loosen the clip at the bottom of the radiator inlet
hose and remove the hose allowing coolant flow out.
3. With hose uncliped put a hose into the expansion
tank and block the remaining gap with your hand to creating
an air tight seal - flush system until water runs clear.
This should take about 6 minutes.
4. Undo the expansion bottle tie clips and hold it up
as high as you can.
5. Reconnect bottom hose and do up the clip.
6. Unscrew bleed screws on the top hose and heater hose
so that they are nearly totally out
7. Fill cooling system with 50/50 water antifreeze mix
until coolant begins to drip out of one of the bleed
screws.
8. Close the leaking bleed screw and continue to add
water mix until liquid comes from the second bleed screw..
9. Close second bleed screw.
10. Top up expansion tank to max mark with the bottle
in its normal position - if when you bring the expansion
bottle down to its original place it is over full, open
a bleed screw to let out some of the excess coolant
out.
11. Replace coolant tank cap and bleed screws and ensure
there are no leaks.
12. Start engine and run until it reaches its operating
temperature - If the temperature needle starts to rise
very quickly then chances are there in a lot of air
in the cooling sytems, this can be solved by opening
the bleed screws and watching until no air is coming
out of them and just a constant stream of coolant, then
you know that you have removed the air and you can tighten
them back up. !CAUTION! be careful not to do this when
engine is too hot.
13. Stop engine check for leaks - if sound then remove
expansion bottle from clips and hold it up as high as
it will go
14. Open bleed screws once again to ensure that only
coolant comes out and no air. If any air comes out leave
them open until only coolant comes through.
15. Close bleed screws, ensure coolant is at correct
level.
16. Start engine up, tempearture gauge should rise at
normal rate and then keep idling to make sure the fan
cuts in at the normal place. If the temparture gauge
even goes SLIGHTLY HIGHER than normal and the fan hasn't
cut in switch of engine straight away and investigate.