i have a 2001 base miata1.8 the other day while at a drive thru i pushed in clutch to put in first,and it didnt want to shift,i had to turn off car and start in first,had to powershift all the way home,one block from home,i was able to shift with clutch,but i did notice a loud grinding noise when i pressed clutch in,i figured id start shoipping for clutch seems throwoutbearing was goin bad,so i purchased a clutch kit,after shopping around to see who is going to imstall it for me,the car is shifting fine no grinding noice nothimg clutch grabs halfway seems nothing wroung now,im thinking about returning clutch kit,could it have been just air in lines,any help will be appreciated.