Hi,
I am doing some investigation into an issue (more details may follow) and I would like someone with electronic ignition (does not matter which) and a strobe light to do a quick test and give me an opinion.
Run the engine at something over 1000 RPM, does not matter what. Use the strobe light to look at the 'points' and see if it looks very steady in the strobe, no slight jittering of a few degrees. If it is rock solid then go to the other side and look at the timing marks on the alternator. Is it just as steady?
If it is jittering on the points side then go no further but please let me know.
I am only after an opinion, but if you could estimate on the alternator timing marks how many degrees it jitters then that would be handy.
For my reasoning, watch this space...
Thanks
Tony
spark scatter?
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Hi Dave, Yes I know. But…
Hi Dave,
Yes I know. But what you have said is not what I am asking for. So if anyone would care to assist I would appreciate it. Otherwise I will wait until the weather warms up enough to look on my machine as I have to work outside at the moment.
Tony
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With the chain drive cam and therefore no rock solid interconnection between the cam and crankshaft. IMO, it is an intellectual certainty there will be jumping about caused by the inevitable cam lobe causing fluttering of the AAU or even EI systems. More than an opinion, it is what I have observed for the last 30+ years. The problem still exists if 20M3 (rear points) though not directly cam related and with 20M3S thru 325xxx+