Drive shaft splines.... how bad are these?

[ccarlsonnh]

Had new tires put on this weekend so decided to do the drive shaft splines while the wheel was off.  11K miles since I last did them.   Splines still had a bit of grease on them when taken apart. But, looking at the splines left me a bit concerned as there is obvious wear. What I don't  know is just  how bad these are.  OK for many more miles or are they ready to leave me stranded sometime  soon?  Any inputs and experiences most appreciated!  Thanks!

[TX brick]

Both are worn badly. My 30000 mile ones looked the same.  I sent mine off to Bruno in Canada for a rebuild. The last I heard he had stopped taking work due to illness. What lube did you use? The BMW stuff is no good, and both the best greases that we used are no longer available.

[ccarlsonnh]

I was afraid of that :-(    Most recent lube was with Staburags I believe, done my independent  wrench.  Prior to that I used Guard Dog 525.   Just put Honda Moly 60 on them as that is what  I had here.  And, yeah, I heard Bruno was no longer doing this work.  Might have to look for decent  used parts... prefer not  to be without  my ride for our short riding  season if possible.  Thanks for the info!

Both are worn badly. My 30000 mile ones looked the same.  I sent mine off to Bruno in Canada for a rebuild. The last I heard he had stopped taking work due to illness. What lube did you use? The BMW stuff is no good, and both the best greases that we used are no longer available.

[Laitch]

Both are worn badly. My 30000 mile ones looked the same.  I sent mine off to Bruno in Canada for a rebuild. The last I heard he had stopped taking work due to illness. What lube did you use? The BMW stuff is no good, and both the best greases that we used are no longer available.

That is some wear on the driveshaft and input spline shaft. I wonder about the accuracy of the recorded mileage.

Anyway, the end of the line for your rear drive splines is still a few thousand miles away if you don't hammer it. The same goes for the driveshaft ends that are in critical condition.

Concerning spline lube: Staburags NBU 30 PTM is still available and works well when applied correctly on clean surfaces. Dow Corning, Locktite and Swepco have lubricant pastes that might work well, too.

If you decide to restore your final drive, http://vamotorrad.com/benchwork/, has been well regarded by some in this forum for input spline work. Ted Porter has driveshafts.

[ccarlsonnh]

Thanks!  Just looked up the maintenance records and looks like the lube was most recently done around 11K miles ago.  Was thinking about some long trips but think I'll put  that on hold until I get this resolved... really don't need a break down far from home base!   Thanks again.

That is some wear on the driveshaft and input spline shaft. I wonder about the accuracy of the recorded mileage.


If you decide to restore your final drive, http://vamotorrad.com/benchwork/, has been well regarded by some in this forum for input spline work. Ted Porter has driveshafts.

[K1300S]

my 94 had similar miles, records of good maint, and looked at least as bad as your DS and FD. 

my 92, twice the miles, no maint records, DS and FD looked fine.

go figure.

not cheap to repair, but bike feels WAY better afterwards.  there was just a thread on this same issue a few days ago.

[Andy FitzGibbon]

The Guard Dog grease is no longer manufactured, but it is still available from a couple retailers. Beemer Boneyard, for one.


Andy

[ccarlsonnh]

The Guard Dog grease is no longer manufactured, but it is still available from a couple retailers. Beemer Boneyard, for one.


Andy

Beemerboneyard is out of the GD525.  Have been unable to find it elsewhere so looking for the next best thing!  I have located a good used FD and drive shaft so hope to be installing them within the  next week or so when they arrive :-)

[TX brick]

What is the best grease to use now?

[ccarlsonnh]

What is the best grease to use now?

Wish I knew... doing some googling to get that answer myself.  Honda Moly 60 also NLA

[Martin]

Must have at least 60% moly I have just started using Honda 60, switched from Castrol Optimol. You can also try looking at Straburags. You will get heaps of recommendations including blends of different greases. Do your research listen to opinions and when you are totally confused pick one. I think the key to long life is 60% moly and change often at least every 20,000 K's, some recommend every rear tyre change.  :dunno It is not a hard job takes about an hour.
Regards Martin

[Laitch]

You can also try looking at Straburags.

That had better be a penetrating stare.

[johnny]

greetings...

the mickster had her motowing at the squealer today gettsing her 16 thou warranty fluid change...

joe... the service manager for 16 years... i asks him abouts that moly 60... he said the new stuff is exactly the same as the old butts from a new supplier... seems as the 60 supplier changed the forumla without tipping off big red... the techs noticed the difference... the supplier was poocanned... and honda wanted to call the new stuff from the new supplier assembly paste m-77...

thats the story...

j o

[ccarlsonnh]

Thanks!  Hmmm... Makes ya kinda wonder if it's this stuff in a relabeled package... https://www.dowcorning.com/applications/search/products/Details.aspx?prod=01005103&type=PROD

greetings...

the mickster had her motowing at the squealer today gettsing her 16 thou warranty fluid change...

joe... the service manager for 16 years... i asks him abouts that moly 60... he said the new stuff is exactly the same as the old butts from a new supplier... seems as the 60 supplier changed the forumla without tipping off big red... the techs noticed the difference... the supplier was poocanned... and honda wanted to call the new stuff from the new supplier assembly paste m-77...

thats the story...

j o

[John Lang]

When I squeezed the new tube of Honda M-77, gray liquid poured out while a solid blob remained in the tube. I cut the tube open and smeared the blob on the splines. When I checked it 2000 km later, not a trace of lubricant remained and spline wear was evident. Never again. Guard Dog forever.

[ccarlsonnh]

When I squeezed the new tube of Honda M-77, gray liquid poured out while a solid blob remained in the tube. I cut the tube open and smeared the blob on the splines. When I checked it 2000 km later, not a trace of lubricant remained and spline wear was evident. Never again. Guard Dog forever.

Good to know!  Sadly, GD525 is NLA.

[Laitch]

If I didn't already have a jar of Staburags NBU 30 PTM that I'm unlikely to finish before I pass from this mortal coil, I'd be using this Loctite product.

[ccarlsonnh]

Thanks for all the comments and suggestions!  I was able to source a good final drive and a new driveshaft and both are on the way to me.  Going with the solid shaft from Ted Porter thinking that will hold the lube on the splines better. 


Oh, and BTW, Ted Porter also still has GD525 in stock if anyone needs some.  I grabbed a package myself.


Cheers!

[Andy FitzGibbon]

Beemerboneyard is out of the GD525.  Have been unable to find it elsewhere so looking for the next best thing!  I have located a good used FD and drive shaft so hope to be installing them within the  next week or so when they arrive :-)

Wow, I must have got one of his last containers... only ordered a few weeks ago. Glad I got the larger one.


Andy

[subforry]

From the Loctite LB8012 spec

"LOCTITEŽ LB 8012 contains 65% molybdenum disulfide for maximum lubricity"

I don't know if that means its good or not.

http://www.na.henkel-adhesives.com/product-search-1554.htm?nodeid=8797877698561&msdsLanguage=EN_US&selectedTab=document

[Soichiro]

Just took mine apart,  mainly because I didn't like the graunching that comes from the back.  At first the splines looked OK but when I cleaned it all off I found mine as as bad as those in the photo,  if not worse.
Is there anywhere in the UK that can repair it, for example, welding on new male/female splines.
I looked at Motobins and it's 400 quid for second hand final drive and the shaft.  FFS, I only paid 850 for the entire bike.

[TX brick]

Just took mine apart,  mainly because I didn't like the graunching that comes from the back.  At first the splines looked OK but when I cleaned it all off I found mine as as bad as those in the photo,  if not worse.
Is there anywhere in the UK that can repair it, for example, welding on new male/female splines.
I looked at Motobins and it's 400 quid for second hand final drive and the shaft.  FFS, I only paid 850 for the entire bike.

Motobins used to do repairs, have they stopped?

[Soichiro]

On their site it shows they do a repair service but is 'out of stock '.  I've left them my email address for when they recontinue the service.  It's 126 quid so not too bad.

[Martin]

Anybody know how they manage to weld on the new splines without setting fire to or damaging the rubber coupling? A mate reckons he can get splines cut but was wondering about the welding?  :dunno
Regards Martin.

[K1300S]

By taking apart the FD so that the pinion gear is out.