Back of instrument cluster short - Team Camaro Tech
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post #1 of 11 (permalink) Old Apr 3rd, 16, 05:46 PM Thread Starter
 
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Back of instrument cluster short

Went to change the alternator warning light bulb and found this. So, how bad is this and what are my options? Want to keep as original as possible.

Thanks


1967 RS Camaro, L30/M20, 12 bolt rear, Quadrajet, Breakerless SE ignition.
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post #2 of 11 (permalink) Old Apr 3rd, 16, 06:04 PM
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Re: Back of instrument cluster short

If it is just on the printed circuit you can replace it super easy.
The reproductions available are on a modern Mylar that resists cracking with age.
My question would be what caused the damage in the first place.
Is there something added behind the cluster that is chaffing against it?
Whats that under the circuit board - black in the area of the damaged line?

If the cluster housing is damaged it can be ground smooth and the sharp edges abated so it won't damage the new board.
A piece of aluminum tape can also seal the surface if conducting is needed.


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post #3 of 11 (permalink) Old Apr 3rd, 16, 06:28 PM
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Re: Back of instrument cluster short

Looks like an old repair

Jeff

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post #4 of 11 (permalink) Old Apr 3rd, 16, 07:24 PM Thread Starter
 
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Re: Back of instrument cluster short

It is an old repair. Good ol PO decided to patch it with some electrical tape and did not attempt to fix the problem the correct way. Makes me wonder what else has been done/messed up to this 20,000 mile car. Time to order a new board.

Thanks fellas

1967 RS Camaro, L30/M20, 12 bolt rear, Quadrajet, Breakerless SE ignition.
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post #5 of 11 (permalink) Old Apr 12th, 16, 06:43 PM Thread Starter
 
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Re: Back of instrument cluster short

Ok got the new circuit board put in. All the lights are working but the alternator warning light still is not. I also checked the voltage coming out of the 2 part connector going to the light socket and I am getting 7.5 volts. Here is the socket. Is this the correct socket and did all 1967 Camaros have idiot warning lights? And this is the 2 part piece I am talking about. When I say 2 piece you can see the black piece fits into another coming out of the wire loom in the dash.




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post #6 of 11 (permalink) Old Apr 12th, 16, 07:16 PM
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Re: Back of instrument cluster short

is the bulb good and is it the correct bulb?

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post #7 of 11 (permalink) Old Apr 12th, 16, 07:41 PM Thread Starter
 
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Re: Back of instrument cluster short

Nevermind, sorry for posting before I looked at my service manual more thoroughly. The light I am talking about is my fuel light. I have no alternator warning light. Lesson learned, look in the book first.

And yes the bulb is good, gotta run the tank low before I know if it works I guess.

Thanks

1967 RS Camaro, L30/M20, 12 bolt rear, Quadrajet, Breakerless SE ignition.
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post #8 of 11 (permalink) Old Apr 12th, 16, 10:03 PM
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Re: Back of instrument cluster short

if you have a radioshack potentiometer 0 to 100 ohm's can be simulated to the low fuel warning module to trigger the unit. A 1967 unit sends power over the yellow when the trigger point is reached, 68/69 send ground..


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post #9 of 11 (permalink) Old Apr 13th, 16, 10:34 AM
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Re: Back of instrument cluster short

Glad you determined it's not the alternator light. The alternator light has to have two wires.

Jeff
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post #10 of 11 (permalink) Old Jun 7th, 16, 10:12 PM
 
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Re: Back of instrument cluster short

I have the same exact short! Any resolution to this problem? Don't want to put in a new circuit board and burn it up. How can I test before install new board?

Thanks,
Chris
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post #11 of 11 (permalink) Old Jun 8th, 16, 03:42 AM
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Re: Back of instrument cluster short

Quote:
Originally Posted by duly View Post
It is an old repair. Good ol PO decided to patch it with some electrical tape and did not attempt to fix the problem the correct way. Makes me wonder what else has been done/messed up to this 20,000 mile car. Time to order a new board.

Thanks fellas
The amount of PO electrical fixes I found when chasing electrical faults in my 67 were down right scary. I found cut, and twisted together wires sealed with scotch tape; I found extension cord wiring used to connect a voltage gauge; and the best: I found the low/high beam floor switch replaced with a house light switch!

Never argue with an idiot; they'll only drag you down to their level, then beat you with experience.
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