My CJ has a recently rebuilt engine and also a new radiator, whats going on is the cap is not sealing on the rad neck. The bigger issue is with coolant about an inch below the top of the neck coolant is being pushed out of the radiator and continues to do so until right below the top of the top of tubes. The coolant is full of bubbles and when reving the engine will come out of top of radiator
There is no white or blue smoke coming from exhaust, engine oil has no water in it, spark plugs look good, engine runs good, compression is 130 in all cylinders
I cannot get my radiator tester using the adapter to seal so I cant pump up system. Im at the point im going to drain coolant remove rad and hook up something to pressurise the block and see if will maintain some pressure
Im thinking the head has a crack or the head gasket in one cylinder is leaking compression into cooling chamber
Any thoughts/ advise are greatly appreciated as im bummed out of this