170 replies to this topic

[68+86auto]

I have these old graphs but I am not sure if they count with static advance or not

 

https://photos.app.g...seHDLUzjjpgs9x8

 

Those do not include any static advance which is how it is normally done.

[gaspen]

I wish register a complaint ! This driving dog is no more, he is an ex driving dog now 

 

I am how wondering how it survived until now. Need another idea, maybe some kind of rubber clutch...

 

2nd : I've made a new degree wheel which I am satisfied with finally 

 

3rd pic : I believe I placed precisely the degree wheel but still have 1 degree deviation. Is the ignition module perfectly accurate ?

 

4th pic : this one is an unknown dizzy, possibly an older Powerspark unit in a 45D housing. Those dots meaning a faulty module ?

 

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[gaspen]

I found my oscilloscope so I played  little 

 

This is the dizzy which we can not identify. The curve is close to the 41026 (but I don't have all dizzy's data in the spreadsheet )

 

Instead of a nice square signal we can see the fault on the display (see the dots in my prev. post)

 

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Maybe it is not a novelty for you but here is two short video how a (old) points and an electronic modul switches.

 

Points ( Aldon Yellow dizzy)

 

https://photos.app.g...qF4hYCsGJNz7aJ7

 

Electronic (GEU930MS)

 

https://photos.app.g...ZJQyX3DJbYnzAHA

 

[68+86auto]

I have a distributor like the one you have with a fault (C-27H7699). It did some weird things at high speeds but I had modified it for a two cylinder engine and the fault occurred above the engine's maximum RPM so I didn't bother trying to fix it.

 

Your fault is odd.

 

The reluctor gap matters on them but there is no specification that I've seen.

Edited by 68+86auto, 03 January 2026 - 11:51 PM.

[gaspen]

I have a distributor like the one you have with a fault (C-27H7699). It did some weird things at high speeds but I had modified it for a two cylinder engine and the fault occurred above the engine's maximum RPM so I didn't bother trying to fix it.

 

Your fault is odd.

 

The reluctor gap matters on them but there is no specification that I've seen.

 

In the other topic AC suggested the gap to 0.5mm so I set it like that. The fault is there in the whole rpm range. Maybe I should try to decrease it.

 

I have 3 other dizzys with electronic modul, those aren't behave like that

 

About the two BAU1962MS : I asked MiniSpares about the reference curve to compare them but they did not respond yet

Edited by gaspen, 04 January 2026 - 09:06 PM.

[gaspen]

Interesting machine

 

123 Ignition demonstration video - YouTube

 

(Sorry for the music...)