1 Final drive spline clean & lube Sun Nov 20, 2022 1:00 pm
taube
active member
With some NBU 30 PTM lubricant I got on Amazon, I decided to service the final drive splines.
Years ago the previous owner was the last to ride this bike. I'm not sure if he or the owner before him had taken it somewhere for spline lubricant.
Anyway I opened it up and found brown stuff had been used.
I don't suppose you can tell the quality of the splines from that mess?
Whatever the brown stuff is, it's not supposed to be used here. Some of it in the spline teeth had a tar consistency that I could scrape off in peels. It seemed to have begun to separate by density. Some liquidy amber oil dropped out of the housing when I loosened it.
Here it is after some cleaning.
I didn't use a solvent but I've heard brake cleaner works well (??) I plan to return to it for a more thorough cleaning.
Sorry! I forgot to get a clean pic before I put some moly on. You can see residual brown stuff mixed in. I'll probably wipe it off to do a better job later What do you reckon about the amount?
Years ago the previous owner was the last to ride this bike. I'm not sure if he or the owner before him had taken it somewhere for spline lubricant.
Anyway I opened it up and found brown stuff had been used.
I don't suppose you can tell the quality of the splines from that mess?
Whatever the brown stuff is, it's not supposed to be used here. Some of it in the spline teeth had a tar consistency that I could scrape off in peels. It seemed to have begun to separate by density. Some liquidy amber oil dropped out of the housing when I loosened it.
Here it is after some cleaning.
I didn't use a solvent but I've heard brake cleaner works well (??) I plan to return to it for a more thorough cleaning.
Sorry! I forgot to get a clean pic before I put some moly on. You can see residual brown stuff mixed in. I'll probably wipe it off to do a better job later What do you reckon about the amount?
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Restoration project: 1988 BMW K100RS
Currently riding: 2019 Honda CBR300R