Grease for transmission joints

Jul 11, 2006 2 Replies
C

Hi,



I will be removing the drive shafts of my 9k (1997) to replace the CV joint boots/gaiters (not split yet).



From memory Castrol MS3 was the best alternative grease for the constant velocity joint. Is it the same grease for the inner joint (tripod to inner shaft joint)?



On a similar note, how much play should there be between tripod and inboard shaft (CV flange)? Any none at all? With the car jacked up I can rotate the wheel by 1/2 to 3/4 of an inch and get a nice click sound as the tripod moves from side to side inside the flange.



TIA for any advice. Charles


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Y

I have never touched the CV joint. But did the drive shaft removal and separation many, many times on four 9k's I own/ed. The CV joint grease is the same as that for the drive flange I think. I just picked them up at the auto parts store. What I am currently using is the Mobile synthetic grease. Not because it is Mobile, or synthetic. I just happened to spot it on the shelf.

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C

The grease used in the inner and outer CV's is some sort of Molybdenum suspension grease. I presume that's what the 'MS' in the Castrol produce code means.

That's probably quite ok. My 1985 900i could have the front wheels turned about 1/8 to 1/4 or a turn which is one of the ways I found the problem it had with handbrake maladjustment.

I'd assume that the 9000's would have some small degree of play in the CV's too.

Craig.

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