My tacho make that horrible noise and a bit of lubricant and keeping the nut loose didn't fix it, so now I'm pulling it all apart, but how. Is there any information I can get how to. I may be able to get a spare dash with a broken plexiglass but to change it over I need to remove the trip counter resetting shaft, which is a problem. Can some tell me where to find the info. Otherwise Merry Christmas to all.