Great info Barry, Thanks! Jaime On Thu, Apr 19, 2012 at 3:11 AM, Barry Stark <barryst...@verizon.net> wrote:
> Jamie - > I believe that self adjusting is a bit of a misnomer. What happens in that > later box is that there is a spring loaded plunger pushing against the > working piston so if there is some slop you can't feel it. Generally the > box > can develop lash between the gear teeth on the working piston and the teeth > on the pitman shaft as well as the relationships between the other internal > parts as well. Adjusting the screw on top of the box reduces the working > piston to pitman shaft lash much like moving the pinion gear closer to the > ring gear in a differential to reduce lash. Some years back I was still > active in the MB club. One of the really good things about our section was > we regularly had a factory tech rep come in to update us on the new > products > and allow us to ask service questions. I did happen to ask about steering > box slop and the fellow said it is very rare for the LS90 series box to > wear > out. He pretty much said that if one was to follow the manual and reset the > running torques while replacing all the soft parts it would constitute a > rebuild. And yes I remember he seemed to indicate that one had to be sure > to > replace the thrust washer on the pitman shaft adjusting screw as well. > Without the set of special tools to hold the various assemblies while > setting the running torque it would be pretty tough to those adjustments, > so > if adjusting the lash with the adjusting screw doesn't bring things to a > situation that you can live with then probably the best thing to do is to > go > to the bone yard and get a steering box off a lower mileage car. They > typically go for about a picture of Ben Franklin. Make sure that you center > the steering box working piston if you do a swap when you go to mate the > input shaft on the box to the steering shaft coupling. To make a copy of > the > 116 589 621 00 centering screw I just took the appropriate thread pitch > bolt > and turned a point on it with a lathe. > > Barry > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
