starter wiring, what is the large black wire for? - Team Camaro Tech
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post #1 of 8 (permalink) Old Dec 4th, 10, 10:01 AM Thread Starter
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K.P. Walsh
 
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starter wiring, what is the large black wire for?

I'm installing a mini starter and see the solenoid connection for main batt+, yellow wire for ign. + to actuate starter. what is the thicker black wire to? and on a mini starter whats proper connection location? the mini starter seems to only have the large batt terminal on solenoid and small tab for ign power. any help is appreciated.

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post #2 of 8 (permalink) Old Dec 4th, 10, 10:43 AM
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Re: starter wiring, what is the large black wire for?

Thicker black wire may be a previous owner replacement wire for the purple/white wire for starter solenoid engage in the start position. Check with meter or test light to ensure correct voltage is available.

The yellow wire is an OE wire going from the OE solenoid R terminal to the =coil terminal to assist starting engine when hot. Tie back and insulate the yellow wire as if it is connected, it would backfeed to engage starter if ign voltage is present. A '69 should have ign voltage on the cloth covered wire in Start position. Check with meter or test light for verification.

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post #3 of 8 (permalink) Old Dec 4th, 10, 11:55 AM Thread Starter
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Re: starter wiring, what is the large black wire for?

well it turns out the thick black wire is purple under area with covering. that wire tested no power when ignition switch in start position, the small yellow wire did light up just fine. so its supposed to be yellow and purple have power when ignition is in start position?

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post #4 of 8 (permalink) Old Dec 4th, 10, 12:26 PM
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Re: starter wiring, what is the large black wire for?

Purple wire should have start power with either clutch pedal pushed in, as in a clutch safety switch for manual trans or neutral safety switch for automatic trans, in Park & Neutral only.

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post #5 of 8 (permalink) Old Dec 4th, 10, 04:30 PM Thread Starter
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Re: starter wiring, what is the large black wire for?

well i definitely have no power thru the purple wire when ignition is in start position, so that needs traced. car is m21 manual trans.
also - the yellow wire has constant power key on or start positions. is that correct ?
so now I trace the power loss for the purple wire.

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post #6 of 8 (permalink) Old Dec 4th, 10, 05:30 PM
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Re: starter wiring, what is the large black wire for?

Purple wire from ign switch to clutch safety switch and out c/s sw becomes purple/white wire to solenoid.
Good yellow wire action, does it go to +coil terminal?

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post #7 of 8 (permalink) Old Dec 4th, 10, 06:53 PM Thread Starter
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Re: starter wiring, power loss solved

heres what I have found. the car has no clutch switch or wiring I can see. it appears to be an AT car converted to MT. the switch at base of the steering column is a top mount switch with the purple wires to the starter. when tested power goes in but nothing comes out when ignition goes to start position. I can unplug the switch and jump the purple wires and have correct power @ starter, so I am on that switch. so what is this part called ??? and any suggestions where to pick one up??
seems like the crisis is solved, just have to do the work now. I am not sure where the yellow wire goes, I'll be sure to check. I pictured the switch where I lose voltage, the plug with 2 purple wires is unplugged.

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post #8 of 8 (permalink) Old Dec 4th, 10, 08:17 PM
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Re: starter wiring, what is the large black wire for?

Yes, switch shown is auto neutral safety switch actuated by a lockrod from the a/trans lever if hooked up from OE configuration. You state car is changed from auto to manual.
Jumpering the two purple wires gives power to starter, problem solved.
Or, take existing actuator on firewall side and pull up and tie in place to activate switch all the tim. This action will also allow key to be removed when in Lock position.

However, with present switch like shown, you will have no back-up lights as pink wire is power and green wire goes to back-up lights. Would work correctly if lockout rod was hooked up to reverse lever on trans. Then you would need to install clutch safety switch and transfer purple wire connector to it for proper action. Reverse lights would work as presently shown.

Thanks for the picture.

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