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v7 drive shaft grease

elkgrichard

elkgrichard

High Miler
Joined
Mar 31, 2014
Messages
551
Location
California
Is it ok to use a multi purpose marine grease on those splines?

Or would it be better to use high pressure wheel bearing grease?

Reason I ask is because I've noticed or have found a little bit of water penetrates into that shaft housing because the lack of a seal on the joint, metal to metal situation going on. So water will get in there. I use grease on both facing surfaces which probablu helps a bit with water intro.
 
On BMWs, the splines are lubed with high content moly, such as Honda Moly 60, Guard Dog GD-525 or Starburgs. The M-G won't be any different. The carrier on any grease will be thrown off, so its important that lubricant remains on the splines once the carrier has disappeared. The moly bonds with the metal in the splines and continues to work. Any of these lubricants I would recommend.
 
We've always used the Honda Moly 60 on out Triumph Rocket 3 splines with good results.
My was dyno'd at over 140 ft pounds of torque. Rear is still good. 2009 bike
 
I recently did some research on premium greases with extreme pressure additives and found AeroShell 33MS aviation-grade lubricant.

shell.com/global/products-services/solutions-for-businesses/aviation/aeroshell/products/greases/grease-33ms.html

It's wicked expensive if you buy a whole tube (~$30/14 oz.), but you don't need a whole tube during a normal lifetime. Smaller quantities can be found on ebay.
 
The splines are often ungreased from the factory, so any lubricant is a huge improvement. Honda and BMW both made spline lube at one time. You could also use any "open gear lube" with its good cling qualities.
 
It's bugging me there is no seal between those matting parts on that drive shaft.

Thinking about making my own seal next time I have it apart with my up-coming rear tire change.

Maybe some waxed meat cutter paper would work. Don't want anything too thick and it needs to repel water.

I'll see how my greasing on those two mating surfaces worked in keeping water out of there when I get this thing apart. If I find water again I'm trying the meat cutter waxed paper home made gasket.

I can't believe they mated two metal surfaces together without a gasket of some type.

I've found so many things on this bike that drop my jaw. Continuous work in progress.
 
elkgrichard said:
It's bugging me there is no seal between those matting parts on that drive shaft.

Thinking about making my own seal next time I have it apart with my up-coming rear tire change.

Maybe some waxed meat cutter paper would work. Don't want anything too thick and it needs to repel water.

I'll see how my greasing on those two mating surfaces worked in keeping water out of there when I get this thing apart. If I find water again I'm trying the meat cutter waxed paper home made gasket.

I can't believe they mated two metal surfaces together without a gasket of some type.

I've found so many things on this bike that drop my jaw. Continuous work in progress.
Click to expand...
It is a bit strange, especially considering that other MG models do have a gasket there. MG has two part numbers for these gaskets, 12352600 and 12352900. Maybe one of them would fit. They're pretty cheap, you could buy both, see if either fits, and report back to this forum so the rest of us can benefit.
 
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