I have an automatic vainagon with sealed radiator and without thermostat. The difference that the engine has to be a corsar and is warming and bursting the hoses, on the other hand the bulb of the activation of the fan motorcycle, so it was put on a live manual ignition. I attach the diagram in which the hoses are connected, I do not know if someone knows how to improve the cooling system since I think that due to the distance of the radiator that is in the opposite part it takes a long time to reach the cooling to the rear where it is located in the rear.
I do not know if they know any solution or another water pump that manages to speed up the system or a radiator or something that helps me, since I am very desperate with this problem because I have already seen many mechanics.