Factory Original Gauge Cluster with Tachometer?

[Jozseph]

There was a member, do not recall who, was installing / attempting to install a factory original tachometer to the gauge cluster or a factory original gauge cluster with tachometer.

The gauge clusters with tachometer are from civilian vehicles

Was fortunate to acquire a gauge cluster (the diesel cluster) with the 4000 rpm tachometer.

Looking to install this cluster in my 86 K30

Anyone have or know where to find the Original Wiring Diagrams for this cluster?



Front View



Back View

Been post this question on several forums.

Thank You

Joseph

 

[Shackelford R]

here is a thread http://www.steelsoldiers.com/showth...er-conversion-question/page2&highlight=gauges

 

[Csm Davis]

Thanks for the pictures what is the bottom left gage? Air?

 

[Jozseph]

I would assume that is what it is for as the symbol ( the O with the 3 | marks ) is symbol for air brake pressure.

Researching this Cluster, I think it is from a Chevrolet C-Series Medium Duty Truck, possibility a C60

Regards

Joseph

 

[richingalveston]

gauge cluster

I was the poster of the cluster thread. your gauges are not the same as mine and the circuit board will be different. I also had some errors on my schematic that did not get corrected. I do plan to pull It apart again in the future but until I do I cannot correct the information. Just note there were a few errors.

Ultimately what I did was use the circuit board to power the lights only. All of the gauges became hard wired. I cut the back of the cluster so I could put the Cucv volt guage in the cluster. Red led's also.

You can use a meter or you can visually trace the circuits on the printed board to make your own schematic. that is what I had to do.

rich

 

[Cucvnut]

This is good idea.

 

[rchalmers3]

That cluster, with the mechanical air gauge and fuel gauge inside the tach would be great for a truck with on-board air!

Rick

 

[nyoffroad]

In the OP's pic's it looks like the tach has it's own plug. I'd check that out, it may be as easy as plugging in the stock harness and making a small harness for just the tach.

 

[Jozseph]

FWIW, while searching I located the following posting, titled "73-87 Factory Tachometer Information" at;

http://www.73-87.com/7387garage/interior/factory tachometers.htm

Good Information

Joseph

 

[Sharecropper]

I have a late '80's 4000 rpm tach cluster from a C-60 flat bed truck. The tach has the exact same numerals as our CUCV and has the small fuel gauge in the bottom of the dial. (see photo). I also have a spare CUCV instument cluster housing and have figured out how to modify the CUCV housing to replicate the tach cut-out in the C-60 housing. The 4000 rpm tach is a perfect fit into the CUCV housing, taking the place of the large fuel gauge. I will re-route the fuel gauge wire off of the CUCV printed circuit and wire the small fuel gauge under the tach directly from the harness. The two indicator lights in the bottom of the big CUCV fuel gauge are the Seat Belt Indicator Light and Brake System Warning Light. I plan to abandon Seat Belt Indicator Light and cap off the incoming wire. I'm not sure what to do with the Brake System Warning Light, whether I still need it or not, any advice would be appreciated. I will pick up the tach feed from the brown wire at the ICE port and set the switch on the back of the tach to 12-volt. Unless I am missing something, this should do the trick. I will photo-document this whole process in my rebuild thread for all to see.

 

[Jozseph]

I have located the following on other sites;


Original Cluster Connections


Pin Lay Out Chart


Pin Lay Out for Cluster Plug

Regards

Joseph

 

[richingalveston]

lights in gauges

I made the lights in the bottom of the gauge the check engine light,4x4 and gen1 and 2 lights.

When you switch to gauges you loose the gen one and two so you have to put them somewhere. you can cut the existing filters and use them for the lights in the gauges.

The fuel gauge in the pic was replaced with a tach.

 

[richingalveston]

I kept all of the original sending units, just added new ones for the gauges.
I wired all of the idiot lights so that any of the sending units can turn the check engine light on. This helps because you do not always pay attention to the gauge