2001 3 litre s type. water pump replaced now coolant leaks from overflow once engine is switched off
By removing the water pump obviously alot of water has drained out therefore you need to prime the air out of the complete water system at the radiator. The coolant leaking out is caused by the hot air rising to escape out the coolant bottle the only exit point.With the engine switched off, alocate a bleed screw on the top or on the side of the radiator and open that screw.Then keep pouring water into the coolant bottle until you see air escaping from the bleed screw.Once the air stops releasing and only water then spurts out, close the bleed screw. The system is now 95% primed. Start the engine and let her idle then open the bleed screw again, if only water spurts out for about 5 seconds then the system is completely primed. If there is still air coming out you can rev the engine a bit to circulate the water faster and then the system will bleed quicker(Not forgetting of course to top up the bottle replacing the lost water from bleeding) as soon as there is only water shooting out the bleeder, close the bleeder and top up the bottle to the maximum mark only. If ever you over top beyond the maximum mark just open the bleed screw to let out some water until it drops to the maximum mark and then close.The system is now fully bled. Problem solved.
Apr 15, 2013 |
2001 Jaguar S-Type