I have a 2007 Quantum Catalyst PTi and I recently took it apart to service.  I am able to put the housing (cover) back on, but it seems to reel rough as if the gears were grinding or smashed together too tightly  >.  Any one know a trick or the proper way to put this back together?

Thanks

Sounds like the main gear bearings are not seated right, or perhaps you put a spacer on the wrong side.  Use your schematic to reassemble it, and take your time to verify everything is in the right place, and seated properly.  Definitely stop cranking the handle if it feels like its grinding!  Short of that, take it to a pro.

J is right, if you can't seem to get it back together properly, send it to the maunfacturer or a service center.  There are a lot of people who are pretty savvy at taking apart their bc reels, and they still will not attempt to take apart their spinning reels.

ah I got it!  Thanks for the suggestions.