> Fmiser wrote: > I opened it up, with the plan to replace the shaft seal. > > The shaft is stuck in the cover and the cover bushing-to-shaft > is _way_ to loose. And the shaft has worn grooves, and scoring > from the body bushing. > > The pump from the parts car is actually in better shape - > except the seal grooves are deeper. > > Both, I suspect, ran for a considerably amount of time without > sufficient clean oil in the system. :(
I got new seals from Rusty. 004-997-01-47 - shaft seal 010-997-43-45 - o-ring to seal the cover to the body. I combined the best parts from the two pumps. Before putting the pump cam shaft in I used a diamond hone to "file down" the grooves a bit. I don't know how long it will last, but it seems to be holding for now. I called PotomicGerman for a used one. None available - but the fellow did say $250 for a rebuit one. I coated everything liberally with suspension fluid before putting it back together. I annealed the copper sealing rings for the output bango fitting, replaced the suction hose (bulk hose, part number 114-997-04-82, about $13 per meter). To flush the old fluid out, I started by disconnected the return line to the tank and put a clear hose to route it to a collection can. Then I put 5" blocks under the back tires and disconnected the pivot link between the valve and the sway bar. Opening the bleeder screw allowed the weight of the car to squeeze fluid out of the shocks. After no more came out, I closed the bleeder screw, made sure there was plenty of fluid in the tank, and started the car. With the engine idling, I moved the lever on the valve to lift the car. On the S123, the lever on the valve moves in the direction the car will. That is, move the lever up and the car goes up - move it down and the car goes down. Anyway, I ran it "up to the top" a couple times. By then, the fluid returning was clean, so I called it done. So far, no leaks - and the leveling is working as it should. -- Philip _______________________________________ 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://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
