Morris Minor Owners Club

Again, what earth is the car? In a standard +ve earth car, the white wire will be -ve. If the car has been converted to -ve earth, then the white wire will be +ve. It's not difficult to see which battery terminal is linked to earth, and this will confirm if you have purchased the correct unit and then whether your wiring is correct. What model of Acuspark is the unit?

My battery has the negative running to the body and a 45d unit

OK so far.

Make sure that the ignition is turned OFF, remove the No. 1, front spark plug, put your thumb over the spark plug hole and turn the engine over with the starting handle. On one stroke you should feel a real pressure under your thumb (compression stroke) and the other very little. Now turn the engine to TDC on the compression stroke, using the timing marks on the timing cover and crankshaft pulley.

Where is the rotor arm pointing towards? It should be towards the No. 1 HT lead in the distributor cap, but is it?

Next, are the leads in the cap in the correct order? They should be 1342 ANTIclockwise, looking from the top of the cap, again are they?

If all the above are set correctly, AND the electronic unit is good, it should start, assuming there is fuel (but it runs fine with the old distributor).

Once running the ignition timing will need to be set correctly, but it will run with the ignition set at TDC.

Where are you located?

Bridgend South Wales thanks for all the info I can get it to run fine on the old dizzy so got a feeling the new one I have fried

As I suggested earlier - the white wire is +ve and goes to the +ve on the coil, as does the red wire. And the black to the -ve on the coil. Discard the white/black - or tape up the ends if you don't want to take it out the harness. I would send the whole lot back and tell them it just doesn't work - but take better care next time !

Thanks a lot guys! Before I tried converting to electronic my original set up was white to the neg side of the coil is this correct and I also have a red from my loom to the pos side on the coil?

No -your coil was wrong way round. But it doesn't really matter too much, but better to have it correct. The red wire must be an extra feed to something - leave it off - what's not working now ?

When the car was built. it was +ve earth, so the white wire would have been -ve. When the car was converted, whoever did it, did not bother to swap the wires on the coil. The coil will still work, but it's better ot have the correct polarity. So, for your car now with -ve earth, the white wire is +ve.

Apart from the red wire on the +ve terminal, is there the standard white/black wire that goes to the distributor points?

As Roy suggested, what happens if you disconnect the red wire? Normally there should not be any other connection on the 'points' side of the coil - do you have a rev counter?

Hello il swap the white over to the neg side just found out there's a cut out switch underthe dash which has never been used so this red wire can I continue to keep it on the pos side and use it as a cut out?

Why? That's the exact opposite of what you need to do You have confirmed that your car is negative earth. Therefore, as stated above, the white wire is positive, and so should go to the +ve terminal on the coil

Connect the white wire from the ignition switch to the +ve terminal on the coil, also connect the red wire from the Accuspark module to the same +ve terminal on the coil. Then connect the black wire from the Accuspark to the -ve terminal on the coil. Discard the old white/black lead - it has no use in your new set up.

As above, the white lead goes to the +ve terminal.

If the red is switched to 'earth' through the hidden switch, i.e. to the body, that will be a very effective inhibitor, BUT check with Accuspark if their module will tolerate the negative side (black) being directly earthed. The Aldon Ignitor module is 'officially' fine with this inhibitor arrangement, so it is quite likely that the Accuspark unit will be as well, but please check with them directly first.

Yes sorry ment to say swap it over to the pos side.if not I can just run the wire from the switch to the fuel pump right? This can then cut the pump from pumping right? Instead of off the coil