10 replies to this topic

[snapon]

I have fitted an engine to an 84 mayfair that has a pre-engaged starter motor.
Can use the original wiring that went to the inertia type starter and solenoid and do I need to fit a relay?

[lrostoke]

I would think the easiest way of doing this is keep the original solenoid in place with no changes to the wiring.

Connect the main cable that went to the original starter motor to the solenoid on the new starter. And then run a feed off that terminal to the top spade connector on the new starter motor.

The original soleniod will send power to the starter cable and also energise the solenoid on the new starter.

[MRA]

Which has the pre-engaged starter motor the engine or the 84 mini ??

Not all 1984 Mini's had pre-engaged starters fitted as standard.

However the pre-engaged starter motor has its own solenoid so you would only need to use th ebody mounted solenoid as a "terminal" point..... if it is the other way around then you would need to fit a body mounted solenoid to the Mini.

[snapon]

Which has the pre-engaged starter motor the engine or the 84 mini ??

Not all 1984 Mini's had pre-engaged starters fitted as standard.

However the pre-engaged starter motor has its own solenoid so you would only need to use th ebody mounted solenoid as a "terminal" point..... if it is the other way around then you would need to fit a body mounted solenoid to the Mini.

It is the engine that has the pre-engaged starter going into an 84 mini.
So can I wire it as "Lrostoke" is suggesting?

[MRA]

It is certainly an interesting method .....

A slight tweak would be to swap the main cable from the switched side of the body mounted solenoid so the cable to the new starter solenoid is live then extend the starter wire (white) to the new solenoid, this way you are only triggering one solenoid which will add a lot more reliability to the system.

[snapon]

It is certainly an interesting method .....

A slight tweak would be to swap the main cable from the switched side of the body mounted solenoid so the cable to the new starter solenoid is live then extend the starter wire (white) to the new solenoid, this way you are only triggering one solenoid which will add a lot more reliability to the system.

I may be sounding thick hear but do you mean take the main cable off the starter motor side of the solenoid and attached it to the live side, then in turn attach the other end of that cable to the new solenoid?
Then extend the starter wire (white) to which terminal on the new solenoid?

Hang on!
I dont have plain white, I have white/red from the ignition or white/yellow to the coil ???

[lrostoke]

What Martin means is on your existing wing mounted solenoid the cable that goes to the starter put it onto the same terminal as the cable that comes from the battery. This will leave you with an unused terminal on your exisiting solenoid.

Then the white/red wire that energises your wing mounted solenoid disconnect it and extend its length so it reaches the large spade connection on the new solenoid.

I'm not sure if all the later starters have it, but the solenoid energising wire actually runs from a relay on a couple of the mini's we have.

So you could put a relay in that circuit instead of extending the white/red wire to reach the new starter

Edited by lrostoke, 20 June 2011 - 03:13 PM.

[snapon]

What Martin means is on your existing wing mounted solenoid the cable that goes to the starter put it onto the same terminal as the cable that comes from the battery. This will leave you with an unused terminal on your exisiting solenoid.

Then the white/red wire that energises your wing mounted solenoid disconnect it and extend its length so it reaches the large spade connection on the new solenoid.

I'm not sure if all the later starters have it, but the solenoid energising wire actually runs from a relay on a couple of the mini's we have.

So you could put a relay in that circuit instead of extending the white/red wire to reach the new starter

That all sounds clear now. I knew there must be an easy way of doing it instead of extending all the wires and doing away with the solenoid altogether. I'll do that tonight, any problems and I'll be back.

Thanks to both of you, very helpful

[MRA]

It is certainly an interesting method .....

A slight tweak would be to swap the main cable from the switched side of the body mounted solenoid so the cable to the new starter solenoid is live then extend the starter wire (white) to the new solenoid, this way you are only triggering one solenoid which will add a lot more reliability to the system.

I may be sounding thick hear but do you mean take the main cable off the starter motor side of the solenoid and attached it to the live side, then in turn attach the other end of that cable to the new solenoid?
Then extend the starter wire (white) to which terminal on the new solenoid?

Hang on!
I dont have plain white, I have white/red from the ignition or white/yellow to the coil ???

Yes exactly that.... and yes it should be white / red .... just testing

[snapon]

It is certainly an interesting method .....

A slight tweak would be to swap the main cable from the switched side of the body mounted solenoid so the cable to the new starter solenoid is live then extend the starter wire (white) to the new solenoid, this way you are only triggering one solenoid which will add a lot more reliability to the system.

I may be sounding thick hear but do you mean take the main cable off the starter motor side of the solenoid and attached it to the live side, then in turn attach the other end of that cable to the new solenoid?
Then extend the starter wire (white) to which terminal on the new solenoid?

Hang on!
I dont have plain white, I have white/red from the ignition or white/yellow to the coil ???

Yes exactly that.... and yes it should be white / red .... just testing

Ok, all connected and seems ok except...... it wont turn over, the power is all there, all connections are sound and I have taken the starter motor out and tested that it does work but put it in and no joy. The solenoid clicks in and seems ok but will not turn the engine. other than a faulty starter motor any ideas?

[lrostoke]

bad earth, flat battery ??

How long was it stood while you did engine change