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Username Post: 1964 Impala SS won't turn over        (Topic#342431)
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-04-17 03:44 PM - Post#2675158    

I need help from the electric/wiring gurus please! I just installed a new factory fit wiring harness from aaw. I had it made for an internal regulated alternator and flagged for a Pertronix distributor. My ignition switch worked previously so I don't think it's a bad switch. I just don't know what to look for. Battery is charged, starter is wired per assembly manual diagram. Horn relay is hooked up. Hooked up head lights and they don't work either. Brand new grounds...I'm at a loss but wiring is my nemesis, that's why I went factory fit. Can anyone help? What am I missing? Thank you

Paul
1964 Impala SS 327 4 speed


 




Tony 
Founder & Grand PoohBah
Posts: 17572
Tony
Loc: Orange County CA.
Reg: 03-15-99
02-04-17 04:19 PM - Post#2675162    
    In response to MrImpalaMan

You can also drop Donny a line in the AAW forum here on ChevyTalk.

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MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-04-17 05:09 PM - Post#2675168    
    In response to Tony

Thanks Tony, I'll do that too.

Paul
1964 Impala SS 327 4 speed


 
acardon 
Ultra Senior Member
Posts: 11020
acardon
Loc: DFW TEXAS
Reg: 03-25-05
02-04-17 05:26 PM - Post#2675170    
    In response to MrImpalaMan

If it's standard shift, you have to put a jumper connecting the purple wires together, where the neutral safety switch plug is located.
Check the firewall plug connections on the back of the fuse box.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-05-17 05:43 AM - Post#2675253    
    In response to acardon

I saw those two purple wires and wondered about that so I connected them and I still had nothing, but thanks for confirming that they do indeed go together, that's one less thing to contend with. I'll recheck my firewall connections too, thank you very much!

Paul
1964 Impala SS 327 4 speed


 
acardon 
Ultra Senior Member
Posts: 11020
acardon
Loc: DFW TEXAS
Reg: 03-25-05
02-05-17 08:59 AM - Post#2675283    
    In response to MrImpalaMan

The lights not working indicates that your not getting any power to the ignition switch, light switch, fuse block, ect. Power comes from a red wire attached to the horn relay. Do the horns work? The red wire goes through the firewall plug to a soldered splice inside the harness that feeds the differents areas under the dash. Link to wiring.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-05-17 02:32 PM - Post#2675330    
    In response to acardon

I don't have horns just yet, still piecing my car together. I noticed in the link that there's a black wire connecting the horn relay and the positive side of the battery...I don't have that. Should I have that?
Since my harness was modified I don't know how things might have been reworked.

Paul
1964 Impala SS 327 4 speed


 
acardon 
Ultra Senior Member
Posts: 11020
acardon
Loc: DFW TEXAS
Reg: 03-25-05
02-05-17 03:56 PM - Post#2675339    
    In response to MrImpalaMan

  • Quote:
I noticed in the link that there's a black wire connecting the horn relay and the positive side of the battery...I don't have that. Should I have that?



If you have a wire from the alternator to the battery, you need a wire from the alternator to the tie point on the horn relay, to connect the battery to the red wire.

Don
66 Corvair (driving)
57 2dr HT (driving)
56 2dr HT (waiting to be restored)


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-05-17 04:39 PM - Post#2675344    
    In response to acardon

I ran a wire from the battery to the horn relay and it's turning over! Now I'll be able to get the engine running. Still don't have headlights but that could be a switch or lights themselves. 🙂

Paul
1964 Impala SS 327 4 speed


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-06-17 04:29 AM - Post#2675408    
    In response to acardon

Thank you Don, for your help. I really do appreciate it!

Paul
1964 Impala SS 327 4 speed


 
Jim Streib 
Senior Member
Posts: 452
Jim Streib
Loc: Saint Louis
Reg: 03-20-03
02-06-17 07:00 PM - Post#2675522    
    In response to MrImpalaMan

  • MrImpalaMan Said:
I ran a wire from the battery to the horn relay and it's turning over! Now I'll be able to get the engine running. Still don't have headlights but that could be a switch or lights themselves. 🙂



Make sure this wire attached to the battery has a properly sized fusible link on it !. If you do not have the proper protection on this wire then a short anywhere along the wire, to and through the horn relay, and into the car before the fuse block if shorted out will cause big problems.

On my 68 Chevy II Nova there is a fusible link off of the molded battery terminal end that goes to a junction block behind the battery and from there a 10 gauge wire runs over to a splice in the loom where the wire splits with one leg going to the horn relay buss bar, another leg off of this splice to the alternators output post, and then a third leg off of the splice to a fusible link to a terminal on the external voltage regulator. On a second connection on the horn buss, there is yet another fusible link on a 12 gauge wire going into a wire that then goes into and through the bulkhead connector to the interior of the car.

While you hope you will never have a shorted wire or device, it's important to protect the wiring in the proper spots.

Jim

1968 Chevy II Nova (Garage Find 2013)

https://www.flickr.com/photos/121766713@N04/ albums...

https://www.youtube.com/user/StlNovas/videos

1973 Nova Custom
1974 Nova Spirit Of America


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-07-17 04:50 AM - Post#2675584    
    In response to Jim Streib

The wire I ran was intended to be a temporary test wire. Where would I find a fusible link and how do I find out what size I should get?

Paul
1964 Impala SS 327 4 speed


Edited by MrImpalaMan on 02-07-17 04:50 AM. Reason for edit: No reason given.

 
Jim Streib 
Senior Member
Posts: 452
Jim Streib
Loc: Saint Louis
Reg: 03-20-03
02-07-17 09:18 AM - Post#2675608    
    In response to MrImpalaMan

  • MrImpalaMan Said:
The wire I ran was intended to be a temporary test wire. Where would I find a fusible link and how do I find out what size I should get?



Fusible links can be purchased at a lot of auto parts stores.

Here's an article about fusible links:

http://www.whiteproducts.com/fusible-faqs.shtml

In the article for sizing:

Are there any general guidelines for choosing a suitable fusible link?
Typically, a given harness segment is protected by fusible link that is four gauge numbers smaller. A 14-gauge wire would be protected by an 18-gauge fusible link. A 6-gauge wire would be protected by a 10-gauge link, and so on. Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link. The length of a fusible link should not exceed 9".

Most fusible link wire cannot be soldered to another wire so a crimp style connector using the proper crimp tool is needed.

Jim

1968 Chevy II Nova (Garage Find 2013)

https://www.flickr.com/photos/121766713@N04/ albums...

https://www.youtube.com/user/StlNovas/videos

1973 Nova Custom
1974 Nova Spirit Of America


 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
02-08-17 04:37 AM - Post#2675738    
    In response to Jim Streib

Thanks for the link and information.

Paul
1964 Impala SS 327 4 speed


 
Maxbigblock 
Valued Contributor
Posts: 2508
Maxbigblock
Age: 67
Loc: Flint, Michigan.
Reg: 12-16-01
04-24-17 05:25 AM - Post#2688006    
    In response to MrImpalaMan

  • MrImpalaMan Said:
Brand new grounds...



Also make sure you have a good ground between the body and engine, and the body and frame.

Max

I'm from the ONCE great city of Flint, Michigan. The birthplace of General Motors, where A C Spark Plug was formed and headquartered, where the first Corvettes were hand built, and where my 1955 Chevy was made.



 
MrImpalaMan 
"4th Year" Silver Supporting Member
Posts: 317
MrImpalaMan
Age: 52
Loc: Jefferson City Mo
Reg: 10-16-12
04-26-17 03:48 AM - Post#2688301    
    In response to Maxbigblock

She's up and running. Grounds are good. Thanks for the reply.

Paul
1964 Impala SS 327 4 speed


 




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