I pulled the valve cover today to adjust the valve clearances in hopes of slowing down the oild consumption. When I got the cover off, I was hapilly surprised to see a double roller timing chain with steel guides Anyways, I adjusted my valve clearances, double checked them before putting everything back together. Started up the engine, they're still clicking away. Ok, so my Haynes manual and my buddies crappy manual have different valve clearance specs. Hanynes tells me .008" for intake, .012" for exhaust. Crappy manual tells me .008" for intake, .014" for exhaust. I initially went with the .014 for whatever reason. I pull everything apart, chnage the exhaust clearances, and recheck the intakes. Put it all back together, start it up, still clicking away. Feeling lazy and annoyed, I didn't feel like pulling it apart a third time, but I did after sitting around doing nothing for a while. So, third time apart evrything is pretty darn good, changed a few a tiny bit, but it made no difference. So why are they still clicking. I know its the valves, so don't go telling me its loose piston pins or something. The guide seals are quite likely worn, but that wouldn't cause them to click? Burnt valves wouldn't either? Also, why does the stupid thing burn so much oil? There are no leaks, but I go through 1-2 litres a week! I do a lot of driving, but still... I am noticing no lack in power. So I don't think the piston rings could be that terribly worn or the valves that horrible burnt.