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Wiring New Starter With 'piggy-Backed' Solenoid

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#1 Hunter2

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Posted 12 May 2019 - 08:19 PM

My built in Australia 1973 Mini originally had points distributor, remote solenoid and inertia starter....

 

The Solenoid wiring trigger wire White/Red trace coming straight from Ignition Switch to the WIDE BLADE on the Solenoid.

 

OZ Mini NOW has 123 Distributor (fully electronic), Pertronix coil...AND is getting a new Starter (for new flywheel) with 'piggy-backed' Solenoid.

 

Since the new solenoid is no longer just a relay, I understand that I need to wire in a Relay triggered by White/Red trace from ignition switch so as not to overload the switch etc.

 

So, I have wired in a Relay triggered by W/R with the relay receiving power (B) from the main terminal on the solenoid and sending power BR to the solenoid.

 

QUESTION - does the trigger wire (BR) from the new relay go to the Wide Blade on the new solenoid/starter unit?

 

ALSO, with the new distributor & coil, I presume that:

 

a)  the coil can receive a full 12 volts from the ignition keyed fuse box  CORRECT?

 

b)  there is no need to send full 12 v from solenoid to coil  CORRECT?

 

Thanks,

 

Hunter2 

 

(from British Columbia on the West Coast of Canada



#2 cal844

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Posted 12 May 2019 - 09:35 PM

White/ red wire goes to the large terminal on the pre engaged starter solenoid.

In my experience (of A+ engines, so alternator instead of dynamo) youll need a 12 volt supply to the coil, whether keyed or not (someone more experienced with your set up can confirm, or correct me)

Hope my ramblings make sense

Kind regards from a warm Scotland

Cal

#3 Hunter2

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Posted 13 May 2019 - 04:09 AM

Thanks Call,

 

I also sent out this question to a few Mini mechanics on this side of the Atlantic and they agreed with my personal conclusions (answers Yes, Yes, Yes).

 

Unfortunate that NO info came with the starter/solenoid unit...and none readily available from the major suppliers in UK or major retailers of Mini parts in North America.  The starter/solenoid unit could be used in a variety of set ups.

 

The starter/solenoid unit could be used with fully electronic ignition or not.  This starter was sourced because I had also gone to a lightweight flywheel & back plate combination with different ring gear.

 

Rick



#4 nicklouse

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Posted 13 May 2019 - 07:37 AM

just add this for info

http://www.theminifo...-to-pre-engaged

 

the later solenoid can be used just the same but I do like using the old one as a power distribution block.



#5 Hunter2

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Posted 14 May 2019 - 12:48 AM

Thanks Nicklouse!

 

That is where I got to...eventually.







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