G Wagen steering Knuckle Question
 

How much grease leakage from the steering knuckle is normal (large ball beside the hub)? Mine 02 G500 has several ounces of dirty grease outside of the ball. 12k miles.

It's normal. They are designed to seep. The grease traveling in that direction prevents dirt and water from going in the other direction.

There is a fill hole on the rear side of the hub. Your service center should keep the grease filled to the bottom edge of the fill hole; i.e. half full or axle shaft level. More than that puts excessive pressure on the CV joint boot and the axle shaft seal.

Thanks, appreciate the advice!
Steve

http://www.peachparts.com/shopforum/...id=26145&stc=1

Is this what you mean? Because I’m wandering if I need same repairs.

Thanks Vasco

That does not look right. The swivel ball housing is supposed to have multipurpose grease inside. The material that seeps past the swipe seal should look like and be the consistency of grease - not oil, as you have.

Someone either tried to fill the swivel ball housing with gear oil instead of grease or you are leaking gear oil past the axle tube seal.

Checking the oil level in your differential housing will give you an indication. It should come up to the bottom of the fill plug. If it's low, you're leaking past your axle seal.

Thanks for the tip; I’m going to check it.