The engine 98k, had the head gasket recall done at 96k, about 4-5 months ago. They had it all apart and I saw the heads sitting on the mechanic's bench. Not sure if valve adj is included in that recall...I know certain things were extra. It has always sounded the same, even after the engine was apart. I would seem a shame I missed an opportunity like that to have the valves adjusted or they might have mentioned it if it was extra.