I don't know the answer but rebuilding those things is pretty common. You may want to search rebuild with the compressor number and see what you have to do to get into there. The one time I rebuilt one there were shims and trial and error, but if you just find how to take it apart, you may find your answer that way. Putting things back the same way they came apart is easier than rebuilding, but if it looks easy to get to, and you can find the part, you can try for free, since it is already broken, you can only fix it,