Rear Spline Lube

scot in exile

Living Legend
Joined
Jan 14, 2006
Messages
9,416
Location
Fort walton Beach FL, Glenrothes Fife
Ride
2011 Rocket
The last time the splines were lubed would have been 60000miles ago or about eight years, me and my pal jacked the big boy up and feared for the worst but low and behold they look like they are straight out of the factory.
Took my time and cleaned all the old paste/grease out and the paste was still like grease/paste no dust or rust looking stuff like other photos I have seen.
Spread a fair amount (not to much) back on the cleaned ares and put it back together with a wee bit of help from our resident expert Fred (rocket scientist ) thanks Fred
 
you did not pull out the driveshaft?? and lube the other end?? also what did you use to hold the shaft in the middle position when reinstalling the rear
 
The swing arm has to be removed to entirely remove the drive shaft, could be wrong but all the problems are coming from the splines at the rear end.
Put a 7/16 or11mm socket no more that 12mm tall in the tube to hold the shaft in position then just slide it on, pushed the unit on slowly and it went right in the splines first go, the pictures do not do the unit justice the paste/grease was still dampish and plenty of it, as said gave it all a good cleaning and applied some new paste will check again at 90000miles.
 
I pack enough string under the axle to hold it up enough so the bevel box will line up with the splines of the axle. Before I push the bevel box home I pull the string out.
 
For some reason I expected to see you wearing a mechanics kilt
Mine was the standard powdery at 15k miles, what kind of miracle lube did they use in yours!
 
I just did my Roadster for the first time at 16000kms very pleased I did, the splines were as dry as, no sign of grease or paste just red rusty dust. Gave both splines a very good clean and wash, lubed up with Motul 300 EP moly grease and reassembled.

I should be able to charge Triumph for doing a job the factory should have done right in assembly

Was very lucky lining up the splines, they just slipped together first go. Although mully95 idea is a smart one.

When undoing the axle nut it was tight all the way off, noticed the nut thread damaged which would been done by the tyre shop who replaced the rear tyre in April. I will get the thread in the nut cleaned up this week.
 
@motolink the red dust is normal. That's what the Molly does over time and it's still providing friction reduction. As long as you didn't notice in wear in there that was normal from the factory
 


I had forgotten about the swing arm I should have remembered since I changed the output shaft bearings I use a gob of cold butter to hold the shaft ...still smell good when I reopen 30000kms later
 
I've never had any problems sliding the bevel box back on to the drive shaft, it just goes on.
 
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