Thanks to all who responded to my last post. I got the fuel lines bled last night and tractor starts up great. I went out and did maybe 25 minutes of rototilling in loose soil, so tractor wasnt working that hard...rpms kinda low as i was in 1st gear not goin that fast as i was tilling. I switched of tractor to move a hose and when i turned the key to restart, my oil light, temp light, and buzzer came on. I drove it back to the garage and turned it off. 10 minutes later all lights and buzzer would go off if i turned the key to on (without starting). 20 minutes later buzzer didnt come on but oil light and temp light both come on. There is plenty of coolant. belt to water pump looks in good condition and is not loose. From my previous experience with diesels, it doesnt seem to be running that hot, i dont smell burning oil. This problem has been somewhat evident since i bought it (ive run it maybe 6 times, never worked it hard, due to warning lights). I topped of oil and am still getting warning light...i did have some oil come out of the oil overflow tube but that was a little while back...dont know if it indicates too much oil? I did a search for these warning light issues and found many entries on bigger tractors, plus im really new to this, apologies if this is a redundant/super common newbie question...