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1971 charger super bee rallye dash wiring ?? #2845387
11/12/20 02:55 PM
11/12/20 02:55 PM
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moparx Offline OP
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moparx  Offline OP
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can anyone help me with a picture of a 71 charger rallye dash, including the wiring, from the rear side ?
possibly a pic or two of the dash cluster and wiring from the FSM ?
trying to help a friend diagnose why his oil pressure and gas gauge [and more than likely temperature gauge] doesn't work since he removed and re-installed his cluster.
i am doing this from afar, in other words, i'm not able to go there to inspect this in person, and he is not sure he plugged in a couple connections in possibly the wrong place[es]. [is this even possible ?]
i'm guessing a bad ground or two, but he thinks he may have a couple wires mixed up. [?]
everything worked perfectly before he removed the cluster to re-position the turn signal lens.
i tried the google, but got everything except what i wanted !
thanks in advance guys ! up bow
beer

Re: 1971 charger super bee rallye dash wiring ?? [Re: moparx] #2845416
11/12/20 03:50 PM
11/12/20 03:50 PM
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Western Colorado High Desert
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Here are some pics. It is hard to see but right centered between the 4 small gauges is the volt limiter that runs those 3 gauges. It pulsated 5 volts to those gauge. Amp gauge gets a straight 12 volts. Chances are it is either bad or not connected right.

DCP_8034.jpgDCP_8035.jpg

72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
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Re: 1971 charger super bee rallye dash wiring ?? [Re: moparmarks] #2845643
11/13/20 10:00 AM
11/13/20 10:00 AM
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71rm23 Offline
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This might help as well as Moparmarks. From a '71 RR but don't think that is a difference

tach3.jpg
Re: 1971 charger super bee rallye dash wiring ?? [Re: 71rm23] #2845678
11/13/20 11:25 AM
11/13/20 11:25 AM
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There you go. That is a good shot. There is a black wire from the harness that goes to it.


72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
motormangj@gmail.com
Re: 1971 charger super bee rallye dash wiring ?? [Re: moparmarks] #2845708
11/13/20 12:52 PM
11/13/20 12:52 PM
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north of coder
moparx Offline OP
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moparx  Offline OP
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PERFECT, PERFECT, PERFECT ! boogie that's exactly what i needed to see, the connections, plus the voltage reducer can.
my wife had a 74 charger with a rallye dash 35yrs ago, but i can't remember anything about what the dash looked like on the back side. [i'm guessing it was similar]

anyway, i will bet money his problem is a loose/bad ground, OR a bad connection [possibly no connection] to the voltage reducer.
now that i know what the reducer looks like, and where it is located, i can have him look at those connections.

is it possible to damage the reducer by pulling too hard on the connections during removal ?
what happens if the 12v feed is hooked to the wrong tab ? or is that not able to be done ?

regardless of the outcome of this venture, you guys ROCK !!!! punkrocka THANK YOU !!!
beer

Re: 1971 charger super bee rallye dash wiring ?? [Re: 71rm23] #2845745
11/13/20 02:10 PM
11/13/20 02:10 PM
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jlatessa Offline
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Thanks 71RN23, I'm just getting into our dash,
do you possibly have any more pics you could share?

Much appreciated, Joe

PS, if you prefer, you could send to my e-mail; jlatessa@roadrunner.com

Re: 1971 charger super bee rallye dash wiring ?? [Re: 71rm23] #2845811
11/13/20 05:13 PM
11/13/20 05:13 PM
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Valencia, España
NachoRT74 Offline
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Originally Posted by 71rm23
This might help as well as Moparmarks. From a '71 RR but don't think that is a difference


things just change if is the basic rallye cluster OR if the cluster is with tach/clock, not with years, but still with the different gauges setup, the wiring AND the VL hook up is the same, just feeding diff gauges locations


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: 1971 charger super bee rallye dash wiring ?? [Re: NachoRT74] #2846075
11/14/20 12:55 PM
11/14/20 12:55 PM
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moparx Offline OP
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what is the correct way to test the voltage limiter ?
apply 12v and look for a pulsed 5v output ?
also, what does the choke/condenser/whatever it's called do ? dampen the 12v input ?
beer

Re: 1971 charger super bee rallye dash wiring ?? [Re: moparx] #2846080
11/14/20 01:05 PM
11/14/20 01:05 PM
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Yes check for a 5 volt pulse.
They can malfunction sending 12 volts to the gauges which will burn out the gauges. I just replaced both the VL and gauges on my friends 70 Cuda. They can also just stop working altogether.
The condenser stores a charge for the gauges.


72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, .
Moparmarks Parts & Restorations
Desert Mopar Metal
Grand Jct. CO
970-261-7039
http://moparmark.com/
motormangj@gmail.com
Re: 1971 charger super bee rallye dash wiring ?? [Re: moparmarks] #2846082
11/14/20 01:14 PM
11/14/20 01:14 PM
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north of coder
moparx Offline OP
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once again, THANK YOU !! bow
beer

Re: 1971 charger super bee rallye dash wiring ?? [Re: moparx] #2846242
11/14/20 07:20 PM
11/14/20 07:20 PM
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Valencia, España
NachoRT74 Offline
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You'll never will be able to sense 5 volts, not even pulse, because the pulses are really 12 volts. But the averaging of the pulse going in and out will make 5 volts.

Each VL got its own pulse rate.Is hard to find one equal to the other. You can just test it with a test light or analog multimeter. A digital multimeter will get an erradict reading due the sampling rate for the reading non matching the VL pulses. Althought if you get 0 or fixed 12 VOLTS still on a digital multimeter its damaged on either of those stages. A test light or analog multimeter is more trustable thought. That will tell you is good or bad, but no if the voltage is correct. You will need special testing tools for that, like an osciloscopy

and absence of ground on VL will feed full 12 volts and burn the gauges, so is MANDATORY get the VL correctly grounded

The condenser, PER PN DESCRIPTION its a noise suppressor, but it could work as a buffer power? Actually the VL can work without the condenser and I have seen several cluster without it


With a Charger born in Chrysler assembly plant in Valencia, Venezuela
Re: 1971 charger super bee rallye dash wiring ?? [Re: jlatessa] #2846493
11/15/20 11:37 AM
11/15/20 11:37 AM
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71rm23 Offline
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Moparx and jlatessa here are a couple more. Hope they help.

thumbnail_20170225_192243_resized.jpgthumbnail_20170225_192248_resized.jpg
Re: 1971 charger super bee rallye dash wiring ?? [Re: 71rm23] #2846504
11/15/20 11:53 AM
11/15/20 11:53 AM
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jlatessa Offline
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They will help, many thanks, I've saved them for the future.

Joe

Re: 1971 charger super bee rallye dash wiring ?? [Re: jlatessa] #2846623
11/15/20 03:18 PM
11/15/20 03:18 PM
Joined: Sep 2003
Posts: 19,239
north of coder
moparx Offline OP
"Butt Crack Bob"
moparx  Offline OP
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north of coder
good news guys ! the answer was my buddy didn't have the VR plugged in [the wire was just hanging there] and one of the gauges was plugged into the VR input spade.
all works as it should now. boogie
diagnosing by phone is super tough when you aren't sure [or in my case, can't REMEMBER........ grin] what the layout is.
the pics provided helped me TREMENDOUSLY, and i was able to guide my buddy in what to look for that he may have missed. i couldn't have done this without you guys !

i too, am keeping the pics for future reference ! up bow punkrocka
beer







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