85 C10 base instrument ribbon and schematic?

[BadDog]

Well, the C10 is on the road and running. Spent this evening running down a number of electrical gremlins, mostly resolved by cleaning grounds and such (dome/ctsy lights, back-up, tag light, etc).

But I can't get the gage cluster lights working because the ribbon is burnt pretty bad in the main cluster lighting trace. Burn't so bad there is near an inch of copper gone, and it delaminated over twice that. Unfortunately the only schematics I have are for later R/V models, and the 6.2 diagrams don't agree with the main cluster plug pin-out. Anyone know off hand what models etc I should be looking in for a donor cluster/ribbon? Might try to find one with basic gages. Looks like wire color remained consistent, so could presumably repin for other models if I found something that would work. I think the only diesel specific feature (that matters) is the "water in fuel", which could be re-routed/isolated, or maybe transferred (haven't looked that close).

So, anyone know what years and types of vehicles provide a drop in?

Anyone got an 85 6.2 base model gage cluster schematic they care to share?

 

[Russell]

78-89 should be a direct drop in. Just change the fuel gauge for the Diesel version, and the oil pressure gauge for the 80 PSI version. All the rest of the gauges are the same between a gas and diesel truck.

As for the water in fuel light -- It is not actually wired into the cluster connector from the factory. There is a light that runs down off the diesel specific harness containing the glow plug and low coolant lights and just snaps into the cluster like one of the little bulb holders.

That said, my trucks always had the water in fuel and glow plugs together in the little extra pod above the fuel gauge and speedometer, then had the low coolant light under the speedometer.

 

[imiceman44]

Well, the C10 is on the road and running. Spent this evening running down a number of electrical gremlins, mostly resolved by cleaning grounds and such (dome/ctsy lights, back-up, tag light, etc).

But I can't get the gage cluster lights working because the ribbon is burnt pretty bad in the main cluster lighting trace. Burn't so bad there is near an inch of copper gone, and it delaminated over twice that. Unfortunately the only schematics I have are for later R/V models, and the 6.2 diagrams don't agree with the main cluster plug pin-out. Anyone know off hand what models etc I should be looking in for a donor cluster/ribbon? Might try to find one with basic gages. Looks like wire color remained consistent, so could presumably repin for other models if I found something that would work. I think the only diesel specific feature (that matters) is the "water in fuel", which could be re-routed/isolated, or maybe transferred (haven't looked that close).

So, anyone know what years and types of vehicles provide a drop in?

Anyone got an 85 6.2 base model gage cluster schematic they care to share?

I should have an 83 diesel cluster, I had plans for it but now it looks more likely I will never get that project going, I will dig it up for you.