Viper 2150S scsi tape drive

Hi Last night I put the tape in the drive and did a 'mt -f /dev/rst0 status' The drive seemed to do as expected. The tape shuttled back and forth and the status read out. Then I thought I'd try the retension as the tape had been sitting for some time. It started off OK then came to a stop. I looked at things and realized that the capstan had turned to goo. :( I'll have to try some tubing on it. Does anyone know the expected diameter of the capstan? I would think it wasn't too critical if I'm not trying to recover data from the tape I have. I had to clean out the tape case. It is not as easy to get the band back on if there is tape on both spools. I've done it in the past with just one full spool and then loaded the tape on the other after getting the band on. One just needs to feed on enough to get past the end of tape holes. There was just too much tape on both spools to do it that way. I hope I didn't crinkle the tape too much. I have the capstan offand cleaned up. rubbing alchohol seems to clean it off well enough. Dwight