Wastegate Diaphragm R&R--stuck nut!

[Phil Payne]

> I tried and tried, but couldn't get that wastegate diaphragm upper nut
> removed yesterday afternoon. I have started to remove the wastegate, but
> put off finishing 'till this afternoon since darkness was setting in
> last night.

I don't see how you can use the 'screwdriver trick' with the wastegate still in place, since you shove the screwdriver up the hot
end of the wastegate.

I strongly suspect some sort of transparent epoxy or Loktite is used on the upper nut - I've taken to giving it and the exposed
threads and damn good go with a wire brush and it really seems to help.

If you have a screwdriver slot underneath, it's mor elike a coin slot.  You can grind down a draglink socket to fit - but I've never
had any success this way.  The screwdriver trick rally works.

I have a special short FACOM ring (box) wrench that I lock on the three bolts.  Then I get the nuts from below using a socket
mounted on a UJ wrapped in duct tape to give it some stiffness.

--
  Phil Payne
  http://www.isham-research.com/quattro
  +44 7785 302 803
  +49 173 6242039