MG
The Classic Marque

Nick
Alloy covers are not quiet if you have roller rockers hammering away like a sewing machine.

Disconnect the main lead from the coil at the dizzy.
Remove dizzy cap. Hold lead above rotor arm and turn engine with ignition on. If you get a spark the rotor is allowing the ignition to earth. No spark is what you want.

Electronic ignitions do fail: I have replaced a couple for people. Most recent was an accuspark system in an accuspark dizzy. The plate in the Accuspark dizzy differ...

Fuel pump seems to work fine, filled about 1/2 litre within a few seconds. Probably cost me about 80p!!
Obviously need to try it again when engine playing up.

Just took the rotor arm off and looks ok to me, no visual cracks or anything. It appears to be a Distributor Doctor one (got DD stamped on top), either way it was fitted by Peter Bugrgess when I went to his rolling road so it will be good quality, albeit about 10 or more years ago.
What a pain in the arse getting the cap off, had to take the wheel off so could get access to the bottom clip.

Yep, 6207. Open originally. Unless you favour shielded.

https://www.bearingboys.co.uk/search.cgi?search=6207

And don't buy C3. Too much clearance. CN(0) is fine.

https://tflbearing.com/blog/understanding-the-importance-of-bearing-clearance.html

But if you want gaskets and seals of course, then the usual suppliers, but you have to check they supply the correct thickness ...

Hi all , sadly ill health means I have to pas my YT on. Can I say thanks to all who have helped with the restoration, particularly Paul, Anton Tony and Franz.
regards KGM

David C. Interesting with the BMW. With our Ford Falcons here, if the interior light fuse pops the engine won't start. The fuse also feeds the lighting around the ign. switch and the power to the ignition imobilizer. Doesn't throw a diagnostic code because the power is off----first one I came accross took a while to find the fault/cause

Les --If you want to test your rotor button--Whe...

David, l'm glad l've not lost the plot ( yet!)...

David,

That's the idea behind dye penetrant testing https://en.wikipedia.org/wiki/Dye_penetrant_inspection .

Fuel and spark....yup...with our old cars that's about it...l only say that as l recall a story l was told about a driver of a fancy BMW who was left stranded at a motorway service station when his parked car refused to re-start. Turned out the CPU had detected a failed stop lamp, consequently deemed the car non roadworthy so disabled the ignition...
Keep it simple.....