MOTOBRICK.COM

TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: schrocketeer on February 18, 2020, 11:24:25 AM

Title: Spline final drive lube data
Post by: schrocketeer on February 18, 2020, 11:24:25 AM

Here is some data for Final Drive spline lube discussion. The two photos on the left are at my first tear down. I didn't have Staburags or HondaMoly, so I used Valvoline Full Synthetic from Advance Auto. The two pictures on the right are from my inspection this weekend, after 15k miles with the Valvoline. From what I can see, there is no degradation of either of the connecting side of the splines. I do have Staburargs from Beemerboneyard for the clutch splines and the final drive splines I'll finish up this week. [ Invalid Attachment ]  [ Invalid Attachment ]  [ Invalid Attachment ]  [ Invalid Attachment ]  [ Invalid Attachment ]

Title: Re: Spline final drive lube data
Post by: Past-my-Prime on February 23, 2020, 09:44:30 PM

Goes to show ya.
Better to lube than not.

Title: Re: Spline final drive lube data
Post by: Laitch on February 25, 2020, 01:01:45 AM

Quote from: schrocketeer on February 18, 2020, 11:24:25 AM

The two pictures on the right are from my inspection this weekend, after 15k miles with the Valvoline.

That must have been a happy moment. icon_cheers

Title: Re: Spline final drive lube data
Post by: volador on February 29, 2020, 06:28:03 PM

Inconclusive test results

Z=16 are less prone to wear vs. Z=20 FD & DS

Title: Re: Spline final drive lube data
Post by: K1300S on February 29, 2020, 09:03:08 PM

easy way to check spline status without taking final drive off..

put bike on center stand.  put in neutral.  grab back tire and gentle roll it forward and back.  if all the splines are perfect and the final drive is good, there will be NO "slop".  the more slop you feel, the worse the spline wear is.

Title: Re: Spline final drive lube data
Post by: Past-my-Prime on March 01, 2020, 10:34:16 AM

I should have known.  I had a TON of slop, like 3-4" or rotation of the back wheel!!

I'm not going to repost what the FD looks like but suffice to say, I'm looking forward to installing a replacement (once we work out logistics of shipping and payment).

Title: Re: Spline final drive lube data
Post by: K1300S on March 01, 2020, 11:42:05 AM

my 94 has a new driveshaft and a fresh "Anton" fully rebuilt FD.  there is literally ZERO slop.  shifts are soooo smooth and on/off throttle transitions are seamless.  awesome.

my 92 has original, well maintained DS and FD.  61k miles.  a little bit of slop, but not much.  the difference in how the two bikes shift and respond is night and day.