Before I part this truck out I need some advice. Motor ran fine for 80k miles. In December I noticed the oil pressure was starting to drop on acold start ups. So I pulled the motor and found one destroyed cam bearing. New cam/bearings where installed as well as new crank bearings. Motor went back together smoothly and ran the best it ever had for two weeks and started to pressurize the cooling system. Thinking this was due to not having the head skimmed(machine shop was closed during the holidays) I pulled the head and had it surfaced new head gasket installed and all is great again for exactly another 2 weeks. Then the cooling system starting building pressure and push coolant into the expansion tank.
At this point I had to tend family matters in NY and parked the truck till I returned. While there I ordered a new AMC head from Turner another fresh Elring head gasket and new bolts. At this point thinking all is well 2 weeks to the day the cooling system is pressurized pushing coolant into the expansion tank. The block surface looks fine and was spotlessly cleaned ever time. For the hell of it I replaced the radiator with no change. Thermostat was replaced as well.
Any help would be much appreciated as I’m at the end of ideas.
At this point I had to tend family matters in NY and parked the truck till I returned. While there I ordered a new AMC head from Turner another fresh Elring head gasket and new bolts. At this point thinking all is well 2 weeks to the day the cooling system is pressurized pushing coolant into the expansion tank. The block surface looks fine and was spotlessly cleaned ever time. For the hell of it I replaced the radiator with no change. Thermostat was replaced as well.
Any help would be much appreciated as I’m at the end of ideas.