over heating out of ideas
#1
over heating out of ideas
97 model with only 72000 miles I have replaced water pump, flushed the radiator, new hoses, replaced thremostat, fans operate properly in high and low speed. now i have removed the thermostat altogether. radiator is cool but motor is hot apears not to be circulating water from bottom radiator hose to top radiator hose. but i sprayed water through it and it blows out the top of the resevior. Please help. by the way no water in exhaust or oil. no signs of a blown head gaket. thanks in advance for any advise
#2
RE: over heating out of ideas
Hey Rod67: Do you think it would be possible that you rad hose, upper or lower could be collapsing at higher engine rpm?? Deffinately sounds like a circulation problem. Does the rad core seem to be free of debris? ie bugs, fuzz, dirt. The next thing you could check is the timing , just to be sure it's not electrcal related. Hope this helps, Chow for now, Brougham1.
#4
RE: over heating out of ideas
No timing adjustments are available on northstar engines.
Check the head bolts(tighten) to at least 45lb ft of torque.
If they move then the threads have pulled in the block.
By the symptoms you described that seems to be the most likely failure.
Check the head bolts(tighten) to at least 45lb ft of torque.
If they move then the threads have pulled in the block.
By the symptoms you described that seems to be the most likely failure.
#6
RE: over heating out of ideas
tried all these this. ready to run it in the river but to stubborn to quit. does this system have a valve of some sort to control the flow of water? still not circulating. help sorry about thetiming question was frustrated when typing. personally have never been able to get the a coil pack to turn with out breaking lol