So I had an oil consumption problem on my 1990 ae92 high comp, it seemed that it ate a litre of oil every tank of gas. At first it burned it and blue smoke came out the back end, but that eventually stopped. Now it shoots pure oil out the back of the muffler as seen in the picture below. A friend of mine said it was probably the valve oil seals so off came the sparkplugs and wouldn't you know it, the first spark plug was smothered in wet oil. So the engine just had new rings and a headgasket replaced and I dont want to remove the head, its possible to replace the oil seals without taking the valves off right? Oh.... and almost all the valve springs are upside down with the exception of 1 or 2... is that relevant to the oil issues I'm having. How is that detrimental to my engine? Of course I will fix this but its been running just fine besides the oil consumption with the upside down valves.