The rotor arm (or in our case disc) is normally not bad o get off with a long screwdriver to undo the two screws. The points are a bit more of a pig but it just needs the spade connectors pulled off and undo the baseplate bolt. As Mr Haynes says, refitting is just the reverse - allowing for dropping the baseplate screw. Use a magnetic screwdriver to hold the bolt. Worst part is trying to adjust the points, difficult to see when the heel is on the cam, then to get the gap right. I had a short set of feeler gauges which helped but it can be difficult to tighten the bolt and keep the gap.
Best way is to go through the trauma once and fit electronic ignition. I fitted the Aldon Ignitor 2-3 years ago, much better starting and running and you never need to touch it again as there is nothing to wear or go out of adjustment. Its a bit more expensive than the Accuspark but you do not need to remove the dizzy and take it all apart, I fitted it from the top. Cheapest from Retro Rockets via the states, one of the best upgrades for the 7 (IMHO).
Alan
Saab 9000 Stg 1 (now passed to son for his family car)
Saab 9000 2.3 FPT Auto (now gone that others might live)
Saab 9000 2.3 LPT Auto
'81 TR7 DHC
