Quote:

If the oil and plugs look good maybe you are just losing coolant through the overflow on the radiator. Normal in the days before closed cooling systems.



Hi,

no, the radiator is just filled to the metal piece inside the radiator. No water lieaks out over the overflow. The system also helds its pressure. Just to be sure I tested it and attached a piece of paper (zewa) to the end of the overflow. It stayed dry.

Thanks for your input guys!

Carsten