Originally Posted by Dlasure2
OK after doing some investigation work I found why my jeep was overheating I took off the water pump and there were no blades left on the pump and it was packed full of rusty sludge. My new problem is when I was doing my investigation "looking for a blown gasket" I found that my #1 cylinder only has 50 lbs of pressure so I put oil in the cylinder and the PSI went right up to 140. cylinders 2-6 were all in the 130 to 140 range which I think is OK. my question is should I only address this one cylinder or should I overhaul the entire engine. before it overheated it seemed to run ok but when it overheated the engine was making quite the racket. I let the engine cool off and it started and sounded fine.
Tough to answer this as if the compression in the no. 1 cylinder goes up after adding a little motor oil usually means that the rings are worn. If you re-due the head it should not help the compression issue. If you decide to re-ring the cylinder you should go ahead and do the other 5 also. I do not know what to tell you! Good Luck!