The place to show off and tell us all about your XMs (or even other cars). Should it be a big project, or just some general pics, start your thread in here.
Sorry Ray, I didn't see your post till after I had tinkered. So here's some pics from the spare engine, a little easier to get at.
You can see the cable, the adjustment locking screws and the arm, which is spring loaded, that rests on the cold idle screw to the left, or the hot which is to the right of the pump. The arm in between the idle screws rests on the screws underneath them. So when the car is cold, the waxstat holds the cable back towards the right which then pulls the arm back and rests on the left cold idle screw underneath it. So I had to pull the mechanism back to the right to get the setting right and tighten up the locking nuts. It's very easy.
So far so good. Idle is just right now, and it started quickly again. So adjustments have worked.... For now!
Next pressing job is to bleed the brakes. There is definitely a small delay now.
Russ
1992 K reg XM 2.1 Auto SED RP 5712
1992 K reg XM 2.1 Auto SED RP 5705 (D)
Also
2003 C5 2.2 HDI Exclusive
Well so far so good. The adjustments seem to have worked and it's barking into life very well now. Idle is great.
I think there is a little electrical issue, as when I turn the key nothing happens then suddenly it cranks. So there is a delay. Odd. I expect it's earth or connections, maybe the inhibitor relay. Otherwise it could still be my hunch of ignition switch wearing out. I will investigate when I get a moment. But at least it's not starting in a cloud of smoke now.
Russ
1992 K reg XM 2.1 Auto SED RP 5712
1992 K reg XM 2.1 Auto SED RP 5705 (D)
Also
2003 C5 2.2 HDI Exclusive
The adjustments seem to have worked and it's barking into life very well now. Idle is great. 
exactly!