Yet aanother AC question

well its getting warm outside, and i have decided that this year i will fix the AC problem. Bascially i notice that the AC will stop blowing cool air when the oil temp. raises past the half way mark. i dont know if the oil temp really has anthing to do with the AC, but i didnt think it was a coincidence. any thoughts? i havent had the time to go through the whole A/C diag test. i have checked fuses, and have gotten into step 1 of self diag. the insturctions i found in boone's locker were for a '95,-'96, does anybody know if there is a difference in the a '92. just wanted to find out if anybody has had this problem before, thanxs for all your help.