http://www.mye28.com/viewtopic.php?t=86319
The problem? The main throttle linkage on your S38 is wearing out. Solution? Buy a new one. Umm, yeah. The part has been discontinued and costs $500 from the discount dealers if you can get it. Plus, it'll wear out again.
The real solution:
The old link is at the top. I had already broken the plastic bushings out of this one to see if I could bore it out enough for the bearings. I could not, so I had new links laser cut (middle link.)
Remove the slop in your throttle linkage for good. The worn plastic bushings and worn pivot pins are replaced with shielded stainless bearings. The replacement process is simple. Just grind or drill the pins out of the link and bolt in the replacement.
By Tuesday I'll have the replacement links in stock. The repair kit will consist of:
Laser cut, polished 304 stainless steel link
Ball bearings
Stainless shoulder bolts
Stainless nylock nuts
Two sizes of drill bit
Bronze bushings to replace part 2 in the picture above (plastic ones NLA from BMW)
Repair instructions
I only ordered 20 links this time and 3 are spoken for so there are 17 up for grabs.
No PMs, please, just post your questions and dibs here.
Cost: $70 shipped to the lower 48. Discounts on multiple kits (shipped to same address with only one set of drill bits) for those of you out there that are lucky enough to have multiple S38s.
Try that with your linkage. If your linkage flops down, the bushings are worn.
And yes.., if you have a stand alone or plan on migrating to one in the future this part is a must. My TPS voltage signal bounces enough to trigger my acceleration enrichment which cause a poor idle, surging at cruise and light throttle, and worst of all poor fuel economy.
