Hello all. I just purchased a 91 164L. Overall the car seems fine but I have one concern. The previous owner advises me that the timing belt tensioner has been "locked" by her mechanic. I'm not sure exactly what this means and can only guess. What I am guessing scares me. I haven't yet had the time to pull the covers and look at the tensioner. Anyone have any idea about this locked tensioner practice? Thanks in advance.