44 replies to this topic

[68+86auto]

Not that chinese junk 

 

https://photos.app.g...HCHBB2ot2FsVmf6

 

There's always something new to surprise me.

[gaspen]

Problem solved 

 

 20260117_103719.jpg   25.95K   1 downloads

 

The full advance issue still annoys me. 

 

Out of the box the dizzy has almost 20 degrees advance (see picture) With some welding I set it to 11 degrees but on my dizzy machine it makes ~8 degrees - even  with only one light primary spring installed.

 

 20260111_141114.jpg   37.81K   0 downloads

[gaspen]

I've found some more chinese-style machining which could affect the operation

 

The upper half of the cam had a small shoulder inside where the fixing screw's washer sits. Until now I thought that it was "tight" because of the 2nd spring force, but no : the cam get stuck at "high" degrees when the screw is tightened. I removed that shoulder with Dremel, now it's fine

 

 20260118_161138.jpg   49.99K   0 downloads

 

Another remark is the position of the reluctor. On my unit it sits a bit lower compared to the module, on my friend's unit it is on the same height. (This one has that very low dwell value) 

 

The cams are almost the same except that bevel on mine.

 

Does that height difference affect anything ?

 

 20260118_164430.jpg   70.42K   0 downloads

 20260118_164448.jpg   64.37K   1 downloads

 20260118_170127.jpg   62.52K   1 downloads

 

 

[68+86auto]

Yes I imagine that would lower the voltage the pickup outputs and therefore change the dwell or timing.

I was never satisfied with the return of the advance mechanism on the distributor like that which I have. Maybe that is why. There is normally an allowance of about 2° difference between the decelerate and acceleration curves. It was well over 2°.

Now imagine all those people who just throw in a distributor without careful inspection. New must mean good right?

There's a reason they are cheap. No seller has some magic trick to make a distributor better than the competitors for the same price.

[gaspen]

Yes I imagine that would lower the voltage the pickup outputs and therefore change the dwell or timing.

I was never satisfied with the return of the advance mechanism on the distributor like that which I have. Maybe that is why. There is normally an allowance of about 2° difference between the decelerate and acceleration curves. It was well over 2°.

Now imagine all those people who just throw in a distributor without careful inspection. New must mean good right?

There's a reason they are cheap. No seller has some magic trick to make a distributor better than the competitors for the same price.

 

And that is why Minispares don't respond to my complaint about the faulty module 

 

Now I am thinking that renew an old dizzy with an electronic module would be a better idea....

 

On the other hand my GEU930 for the 850 works nicely (on the test bench at least)

Edited by gaspen, 19 January 2026 - 09:24 AM.

[68+86auto]

 

Yes I imagine that would lower the voltage the pickup outputs and therefore change the dwell or timing.

I was never satisfied with the return of the advance mechanism on the distributor like that which I have. Maybe that is why. There is normally an allowance of about 2° difference between the decelerate and acceleration curves. It was well over 2°.

Now imagine all those people who just throw in a distributor without careful inspection. New must mean good right?

There's a reason they are cheap. No seller has some magic trick to make a distributor better than the competitors for the same price.

 

And that is why Minispares don't respond to my complaint about the faulty module 

 

Now I am thinking that renew an old dizzy with an electronic module would be a better idea....

 

On the other hand my GEU930 for the 850 works nicely (on the test bench at least)

 

 

I have been buying all the 59DM4s and 45DM4s that I can find at reasonable prices. I wish there was a better solution. I have at times considered modifying non-Lucas distributors but new distributors of all brands have the same problems. I have been curiously waiting for Bestek to release his ones.

 

I wonder what the new 65DM4s are like since they are a different design.

Edited by 68+86auto, 19 January 2026 - 10:56 AM.

[gaspen]

We bought a new Powerspark high energy module for my friend's distributor. I've put it in, took it to the dizzy machine and it shows the same values as the previous module which we thought faulty.

 

Should the high energy module has less dwell value compared to the low energy?

[ACDodd]

Are you testing it with a 0.8ohm coil?

Ac

[gaspen]

Are you testing it with a 0.8ohm coil?

Ac

 

No, but now as you asked I realized what's the "problem"

 

In my other topic Spider suggested to install 2 Ohm resistance for "dummy coil" to my machine for testing electronic units. I guess 2 Ohm is too much for a high energy module.

 

Distributor Machine - Page 9 - Mini Chat - The Mini Forum

[ACDodd]

If you want to test things is needs to be tested running the correct loads or you likely won't see the responses your looking for.

Ac

[68+86auto]

IF you want to see the dwell as it would be on the car, you'll need to run close to the same resistance. With the wrong resistance the dwell is still an indication of the modules function, it just won't be the same as on the car.

 

The resistor in my distributor machine is quite high (can't remember the value). The machine was made that way and specified as being able to do high energy ignition systems. The dwell simply runs as high as possible.

[gaspen]

Thank you, now it is clear

 

But it's still interesting as BAU1962MS should NOT have a high energy module

 

Anyway I'll setup the curve and we will check in the car with 0.8 coil

 

Cheers

[gaspen]

What is your opinion on this red curve ?

 

Std. 998cc A-series

 

 Képkivágás.JPG   41.39K   2 downloads

 

 

Edited by gaspen, 01 February 2026 - 05:31 PM.

[ACDodd]

Install at 28degrees at 4000rpm.

Maybe a touch long would be better with 8'degrees at idle.

Ac

[gaspen]

Install at 28degrees at 4000rpm.

Maybe a touch long would be better with 8'degrees at idle.

Ac

 

You mean decrease the total advance by 3 crank degrees?

 

Oh I forgot : I will install stage 1 kit and the manual suggests 5 degrees at 1000 rpm. 

 

It looks fine with this setup, isn't it ?

 

***

 

Also I tested the another high-energy module dizzy with 0,8 ohm coil and it has nice dwell readings

Edited by gaspen, 01 February 2026 - 08:53 PM.