1985 K100 Drive shaft splines
I trying NOT to hit the forum with more then one dumb idea every 2 weeks or so. I have a K100 that tugs an EML/GT2 side car. The PO had put on 20k miles and then I put another 10k more before I did a complete spline job. I found the FD/DS splines used up. I found a good used FD/DS. I put 10k more and did a FD/DS lube at the time of a tire change. I had used a moly60/lithium mixture and it wasn't doing well. I relubed with straight honda moly 60. Now 20K later and it is time for a tire change and I discover FD/DS splines are almost used up again. This means two FDs in 60K. I have found an other used FD set as Bruno's rebuild is far beyond my means. But!!! reading Bruno's website gave me an idea.
Is this a dumb idea? I am thinking about filling the DS with nonexpanding foam insulation. Then stuffing something like WalMart sacks into the space at the inside (forward ,beyond the splines) of the splines. fill the forward space that is left with grease and assemble. Now the only way that grease can get out is to work it's way rearward.
Harold in Kansas
Oil in K75 Driveshaft Modification - Question
Wow , what a simple fix to permanently cure a design weak point on an otherwise bulletproof machine . Now why didn't BMW do that ?
I would assume that the mating surface between the FD assembly and drive shaft tube needs to be sealed with permatex ?
Also , does a slinger need to added somewhere toward the transmission end of the drive shaft to keep lube oil from migrating its way up toward the transmission and out the rubber boot ?
1995 non-ABS K75 Rear Spline : Fill plug location
So, I ordered the plug referenced earlier in this post and
plan to take my FD to a machinist in the near future .
So, where best to locate the fill plug ?
Outboard of the shock mounting point ?
Or forward of the shock mounting point ?
And I will fill with ~ 100cc ( 4 oz ) of 90-140w gear lube when done.