6 replies to this topic

[richw911]

Whats the best way to test the electronic module on a 1275 engine - metro engine with the black electronic box on the Dizzy?

Whare can you get them?

Edited by richw911, 14 May 2012 - 09:36 PM.

[racingbob]

i got a complete spare lucas dizzy if you want one with balck box on side

it was my back up dizzy ( kept in the boot ) bit play in spindle but when tried out on car worked realy well

mg metro. only selling as bought new dizzy for rolling road set up £25

[Ethel]

There's not much you can do, measure resistances

pinched off another forum:

1. is the voltage + at the coil greater than 11.7 volts? if so go to test 2.

2. Is the voltage at the coil within 1 volt of the battery? if so go to test 3.

3. Is the resistance between the ignition coil + and - terminals between 0.4 and 0.9 ohms? if so go to test 4. if not change coil

4. Is the resistance between the coil + and the ht terminal 5 and 15k ohms? if so proceed to test 5. if not change coil

5. Connect a small 12volt bulb (like a panel or side light bulb) across the + and - terminals on the coil, carnk the engine over and see if the bulb flashes. If it does proceed to 6. if not proceed to test 7.

6. Is the resistance of any of the ht leads greater than 20k ohms? if so then renew the lead. Also while testing the lead move it about and see if the resistance jumps up and down (it may move a little bit but it shouldn't be a lot).

7. remove the module and check the resitance of the pickup coil it should be between 950 and 1150 ohms.

[Dan]

A Lucas agent should be able to test the module for you.

[richw911]

Many thanks for the help guys great as ever!

I found this the cross reference numbers for the 2 pin module http://www.currentca...le-04-009.html

And this

http://www.tazminia.741.com/mini/0646-05B.pdf

May help someone else searching in the future

Edited by richw911, 15 May 2012 - 02:08 PM.

[richw911]

Came accross this too

http://www.pistonhea...0681.76058&nmt=



Mine are higher than all of these?

[richw911]

Well just to finish this thread off :

She is Alive

Fitted new ignition module and it fired straight up

The top end missfire has now gone too she goes very well now 8) Im really pleased and the new 3 pin module only cost me £10 and I made a new lead with the supplied 3 pin plug - bargain

Many thanks for all the help guys its very much appreciated