The areas I have circled are likely to leak pressure from the cylinders. Under such circu, stances, oil woul d noty get to tyhe coolant and neither would coolant get to the oil.
Removing the rubber from the radiator cap is going to reduce the pressure from the engine and this would lower the boiling point of the coolant. Coolant would be pushed out to the recovery tank resulting in the level rising and dropping by a large margin.
The person who did this either knows the engine has a problem which was not rectified or he knows nothing about the cooling system.
Bleeding the sysytem means to top up the coolant. Run engine without radiator cap and top coolant as level drops to bleed the system of air. Do not start engine for more than 5 minutes as coolant can expand and shoot out of radiator neck.
After coolant level stabilises, close radiator cap and run engine till fan comes on. Stop engine and allow to cool before checking coolant level again. Top up if necessary.
Replace the radiator cap. It is bad and no matter how many times you bleed the system it is not going to work.
Friday, December 10th, 2010 AT 11:41 AM