[s-cars] 1.9 Bar Wastegate Spring

[gsfent]

If prying off the center cap is a problem, you can also simply remove the wastegate cover and add fender washers, which will have the same effect as tightening the screw. It is a little trial and error, and after a run, the waste gate cover will be VERY hot, so be careful. Leave 2 nuts on loosely on opposite sides, and remove the other 4. There will be a  fair amount of spring load, so be careful when removing the last 2 nuts.
Regards,
Jerry
'91 200tqa
'01 E39 M5

Message: 4


Chris: You need to drill a small hole in the center of that little cover plate center cap. DO NOT USE YOUR NEW ?" DRILL WITH ?" BIT (Don't ask). Use a 1/8" bit in a 3/8" drill instead.  Once you have the hole, insert a suitable screw and then pull/pry out the little cap. Protect the top of the wastegate so you don't scratch it.

Then you will need to pick out the epoxy at the top of the adjusting screw that was put there to prevent you from messing with the screw.  Once you have the epoxy out, then you can experiment with turning in the stock spring (max 6 turns in).

If you still want to remove the wastegate cap and install the 1.9 bar spring, then remove the six small nuts on the top of the wastegate.  I worked my way around leaving all the nuts just at the top of the threaded studs.  Then I put my hand on the top of the wastegate cap and pushed down while I removed all the nuts and placed them in a safe place.




IF you are installing the 1.9 bar spring, I strongly suggest that you run the perch screw  in the center of the cap all the way to the top.

Installation is the reverse of removal.  You need to push harder to get the cap down over the studs before hand starting the six nuts. Run the nuts down as far as possible by hand while pushing on the WG cap. Then use your wrench to tighten the nuts.  Use the cross tightening procedure like it was a truck road wheel.