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PostPosted: Mon Jun 26, 2023 7:43 pm 
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Location: near Baulkham Hills, NSW
Alexw wrote:
If you buy the whole unit from Tony, take it to someone who can set the mechanical advance up.

I bought two complete distributors with electronic ignition, and they both had over 40 degrees of mechanical advance up top.
They worked fine when set up with an advance stop.


I've modded a few of the 45D Chinese dizzies by welding the advance stop and filing it back to have a 4.0mm gap. This gives 9-10 dizzy degrees advance range , = 18-20° at crank. Max advance with the stock springs is usually around 3500-4000 RPM.
Set full advance to 30-32° with a dial back timing light.
I've used in 998 1098 and 1275. With 266 and RE13 cams. They run great.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Fri Jun 30, 2023 12:23 pm 
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848cc
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Alexw wrote:
If you buy the whole unit from Tony, take it to someone who can set the mechanical advance up.

I bought two complete distributors with electronic ignition, and they both had over 40 degrees of mechanical advance up top.
They worked fine when set up with an advance stop.



This is good advice. I've posted about this before regarding the 'Rucas' Chinese distributors.
The advance curves are very wrong an could damage your engine.
I have a distributor graphing machine and have corrected quite a number of these.

A module that uses a typical 3 ohm coil is simply a 'points replacement' type of module, offering little advantage over a set of well maintained points.
My preference is for an electronic module that features variable dwell. These can be identified by using a coil under 1.5 ohms,typically 0.8 or 0.9 and actually take advantage of what a true 'high energy' electronic ignition can do..


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PostPosted: Fri Jun 30, 2023 6:34 pm 
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998cc
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Are the parts in these chinese distributers interchangeable with Lucas distributors, li,e the baseplates, vacuum units weights, etc?

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PostPosted: Sat Jul 01, 2023 9:07 am 
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848cc
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hi, the cap and rotor button are the only two items that are interchangeable. cheers Lindsay

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PostPosted: Sat Jul 01, 2023 1:52 pm 
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848cc
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I've put a Lucas vac advance can on one, but it may not fit in all cases.


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PostPosted: Sat Jul 01, 2023 6:59 pm 
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998cc
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It probably depends on which manufacturer but generally it seems no. On the Chinese one I have (which is rubbish) the screws are not ba and have the JIS dot but even a JIS driver did not fit well.

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PostPosted: Sat Jul 01, 2023 7:03 pm 
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998cc
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Ok , thanks.
I may still get one and see whats what.

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PostPosted: Sat Jul 01, 2023 9:12 pm 
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I had to machine the body of one down recently, their supplied cap didn't fit on properly.
Neither did a Lucas one. :lol:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Mon Jul 10, 2023 3:38 pm 
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848cc
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Steam wrote:
Ok , thanks.
I may still get one and see whats what.


They are actually pretty good once you check them over and modofy the advance curve.

I had one a while back which had the magnetic pickup you push down over the points cam. One of the 4 triggers was not equally spaced from the others so it always fired one cylinder a few degrees differently to the other 3 :)


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