Just want to share with you about the major work I did to my 1974 FJ40 with the hope that this will ellicit insights or solutions to the challenges am facing now. I overhauled my rig's cooling system by installing first a set of Thermostat as I discovered there was none inside its housing when I opened it for the first time. I also installed a Bypass Hose as there was none as well and replaced all its upper and lower wornout radiator hoses . The stock Radiator was also replaced with a new one with a Nippon Denso Reservoir. Since almost all of the parts of its cooling system were replaced, I decided to replace as well its Water Pump. All of the parts installed are brand new. However, when I started using my rig, I was not happy with its performance. The engine temperature goes up beyond its acceptable level after 10 minutes of idling or driving it. And I believe it will go beyond the Red Line level if I will not switch off its engine to prevent from further heating. Am a bit disappointed because all of the parts i used came from reputable parts providers like VintageTeqParts for the Thermostat, Bypass Hose, Waterpump and Reservoir and Rockauto parts for the Radiator. Prior to overhauling its cooling system, my rig could run more than an hour without overheating. I decided to replace the cooling system parts because they were just too worn out to maitain and would not give me peace of mind when am on the road. Now, I don't know how to fix this mess anymore. Would appreciate to hear any sound insight from anyone. Thank you in advance.
