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62' Cluster (can it be saved?)
#1376971 Mon Sep 14 2020 02:41 AM
Joined: Mar 2020
Posts: 91
T
Shop Shark
I may be opening a can of worms here but, I was trying to get my fuel gauge working and noticed that there were no wires going to it. That wasn't surprising seeing as a good chunk of the wiring/rubber under the dash has mysteriously turned to rat poop over the last 20 or so years the truck sat. Then I see, once I had removed the cluster, that the back side of it was some sort of integrated circuit type of dealy that I'm not very familiar with. Does anybody have any experience restoring these? I thought that if there is no way to solder or repair the original thing that i would just run wire from the harness to the corresponding gauges/lights/ect...
Please tell me if thats a bad idea or would be to arduous of a journey to undergo. am i better off saving for replacement bits? I really like the look of the gauge cluster and would like to keep it as original as i can (and still functional)
What do y'all think?

Attached Files
20200417_135438.jpg (393.01 KB, 209 downloads)
20200913_174644.jpg (263.34 KB, 216 downloads)
20200913_174701.jpg (190.45 KB, 217 downloads)

62' GMC Fleetside 3/4 ton 235 4-speed.
Time makes fools of us all.
Re: 62' Cluster (can it be saved?)
TerenceandMary #1376976 Mon Sep 14 2020 03:18 AM
Joined: Mar 2020
Posts: 91
T
Shop Shark
what do you call that thin black conductive metal strips that connect each piece of the circuit?


62' GMC Fleetside 3/4 ton 235 4-speed.
Time makes fools of us all.
Re: 62' Cluster (can it be saved?)
TerenceandMary #1376981 Mon Sep 14 2020 04:16 AM
Joined: Nov 2005
Posts: 5,797
3
3B Offline
Master Gabster
Hy TerenceandMary, I think on most of those printed circuit type dash wiring boards the conductive material is a copper foil. I have repaired small sections of them by using the same material that was sold to repair the defroster grids inside rear windows of vehicles, hope that helps.

Re: 62' Cluster (can it be saved?)
TerenceandMary #1376982 Mon Sep 14 2020 04:39 AM
Joined: Sep 2011
Posts: 780
B
Shop Shark
GMC cluster, used fron 60 to 66, should be able to find a used one.


BC
1960 Chevy C10 driver 235 T5 3.73 dana 44
1949 GMC 250 project in waiting
1960 C60 pasture art
G.M dealer tech since 1980 & counting
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377010 Mon Sep 14 2020 04:08 PM
Joined: Dec 2002
Posts: 3,841
Moderator - The Electrical Bay and Rocky Mountain Bolters
There are aftermarket printed circuits available for my 67... I'd bet they make them for the 60-66 too. They are not very expensive either. Another thought. If you have to replace part of it, maybe upgrade to the full gauge package while you are at it.


Another quality post.


Real Trucks Rattle

HELP! The Paranoids are after me!
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377033 Mon Sep 14 2020 07:36 PM
Joined: Mar 2020
Posts: 91
T
Shop Shark
Thank y'all for the help, I will definitely check check that out. The defrosting repair stuff is a good idea, I will keep that in mind.Sadly, It seems that almost all of the material is gone though so i will probably try to find aftermarket printed material.
@Rusty Rod - what do you mean upgrade to full gauge? would that include tachometer or clock or something?My cluster includes the oil pressure gauge ,fuel gauge, speedometer, water temp., and another that just says temperature.


62' GMC Fleetside 3/4 ton 235 4-speed.
Time makes fools of us all.
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377036 Mon Sep 14 2020 08:23 PM
Joined: Mar 2020
Posts: 91
T
Shop Shark
Can't seem to dig up a printed circuit cluster from before 1967. I will keep looking around, but I don't have much of a budget so I don't think I will be replacing the whole cluster anytime soon. has anyone had success using the window defroster stuff to make up a majority of the circuit?


62' GMC Fleetside 3/4 ton 235 4-speed.
Time makes fools of us all.
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377040 Mon Sep 14 2020 09:05 PM
Joined: Feb 2004
Posts: 21,277
H
Boltergeist
That one's easy to "restore". There's a special tool that's used to burnish the contacts where the panel lights, idiot lights, and instruments make contact. It's sold at Walmart- - - - -called a #2 pencil! There's just enough abrasive in the eraser to scrub away the corrosion to get a good contact, and the areas between contacts don't have to be cleaned at all. If a conductor has lost its grip on the circuit board, Elmer's waterproof household glue or even super glue makes an excellent adhesive to stick it back down. Broken conductors can be repaired with a strand or two of thin copper wire and a soldering iron, Just burnish the broken spot, lay a short bare wire patch down, and quickly solder the wire to the conductor strip.

You can fabricate the bulb socket contact strips from brass shim stock and a pair of manicurist's cuticle scissors, glue them into place, and glue wires to the circuit boards to replace large sections of the missing foil. Electrons don't really care if the conductors they're using are round or flat!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377041 Mon Sep 14 2020 09:14 PM
Joined: Mar 2020
Posts: 91
T
Shop Shark
@Hotrod Lincoln: That is great information to know, seems like it should be pretty straight forward. Im not sure if you can tell by the pictures (I'm not the best photographer) but nearly all of the conductive material, therefor cleaning contacts and gluing down whats left would just be spinning my wheels at the stage in restoration I seem to be trapped in.

Attached Files
20200913_1746442.jpg (220.62 KB, 153 downloads)

62' GMC Fleetside 3/4 ton 235 4-speed.
Time makes fools of us all.
Re: 62' Cluster (can it be saved?)
TerenceandMary #1377042 Mon Sep 14 2020 09:17 PM
Joined: Feb 2004
Posts: 21,277
H
Boltergeist
If you can't fix it I can. Send me a PM if you like- - - - -.
Jerry

Last edited by Rusty Rod; Tue Sep 15 2020 05:13 AM.

The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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