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1983 F-700 Nearly DOT Ready

Kaajot

Micro Machine Manager
Ok, so I'll grab pictures as soon as Van Tassel's shop is done looking over the brake lines and modifying my hitch to accommodate all my towing needs.

This Florida 83 F-700 Dump Truck has had a lot of work done by me and a few shops now. It's ready to get a DOT Approval soon.

New LEDs and positions, headlamps, fogs, dash leds, etc -- alll new.
New Master Brake Cylinder
New Brake Lines from Cylinder
New Brake Boost Assist Pump Installed
New TRW Steering Gear Installed (was leaking)
Carburetor Tune-Up Kit
New Solenoid
New Fuel Sending Unit on Master (FactorY) Tank
New Antenna (need to fix its ground though)
New BlueTooth Classic Stereo
New Speakers
New Secondary (Larger) Fuel Tank Gauge with Light (old one no light!)
New Non-Split Rim Hubs
New Tires on them Rims
New Mud Flap (Probably should go to NAPA and get a matching one at some point)
New Rain Seal to Hood (Which I put on Upside Down, will fix when I get it back)
New Blower Fan
New High Beam Step Switch
New Window Actuator on Driver Door

Also unintentionally Installed 1 Dead Squirrel over Winter, have not Removed yet and changed out for a fresh one. -Have removed spare Nuts in glove box.

It's starting to look pretty with the new wheels and LEDs.






Thing that's gonna be my Achilles heel on this is the primary instrument cluster blew with that solenoid that young guy (have his number, phone's dead) helped me fix in Georgia on my way back on the Highway.

I've found 80-86 F-350 instrument clusters (that say Gasoline or Diesel Only, will get the Gasoline one) for sale on Ebay at $89-$299 each.

I figured this is the best way to get the primary fuel gauge working again as the circuitry is black as hell and jumpering with solder and copper seems to do as much good as buying 10 scratched lotto cards.

I think it will work, but I'm just worried another spike will fry the darn fuel gauge again in the future. My idea is to read my wiring diagram I purchased for the vehicle, determine its service amperage and add a fuse rated slightly higher so if a spike hits it burns the fuse and I swap that out.

Is that a good intermittent fix (an inline fuse dangling near the back floor?) and will it help me figure out the long-term issue to repair? Could have been the solenoid as that was the same time when smoke blessed the cab, but Van Tassels said it could have been the gauge that blew the solenoid. (I don't think so, but they've been repairing rigs far longer than me!)
 

Fellro

Moderator
Staff member
I probably have some clusters around, can't say they will have a tach but will have everythng else. There is a fuse that is supposed to protect the gauges, but that is power side, not anywhere to deal with senders. Fairly uncommon to burn them up like that I would think. Might end up with a new sender as well.
 
IMG_1441.JPG

Here’s a good pic of the back of the cluster. I got this instrument cluster for when I still had my 1983 F250. You can see it has the optional tachometer. The printed circuit boards are different between if you have the tach or not. The tach only works if you have the complete gauges, not the idiot lights.
 

Kaajot

Micro Machine Manager
I probably have some clusters around, can't say they will have a tach but will have everythng else. There is a fuse that is supposed to protect the gauges, but that is power side, not anywhere to deal with senders. Fairly uncommon to burn them up like that I would think. Might end up with a new sender as well.

YelloThumbUp

Any of those clusters for sale?

I'll get my VIN/pics when I'm ready just to check.

New sender already installed I believe. (I installed in one of the tanks, think it's the OEM factory tank I did). Float might be installed a little incorrectly, but that's an old mechanic vs new mechanic argument I wasn't willing to have after several discussions the final installation was taken out of my hands (literally) because someone believed in their own wisdom rather than Reading the Instructions. I have a feeling my fuel gauge will always be a little off unless I go back and reinstall :rofl:
 

Kaajot

Micro Machine Manager
IMG_1441.JPG

Here’s a good pic of the back of the cluster. I got this instrument cluster for when I still had my 1983 F250. You can see it has the optional tachometer. The printed circuit boards are different between if you have the tach or not. The tach only works if you have the complete gauges, not the idiot lights.

Yep! That's the one. I have the tachometer.

Upper left on the backside has the gnarly burn marks on mine. Tried jumpering but it did nothing for the guage.

Possibly my sending unit is also a little porked? The old one was not reading nor sending fuel. New one is sending fuel but not reading after install.
 

Fellro

Moderator
Staff member
If you have already replaced the sender then maybe not. The only tach dash I am certain of is a diesel cluster, will have to look in my stockpile to see if there is a tach dash.
 

Kaajot

Micro Machine Manager
If you have already replaced the sender then maybe not. The only tach dash I am certain of is a diesel cluster, will have to look in my stockpile to see if there is a tach dash.
Hmm, I can always get the Gasoline one on Ebay, it's just $89. Is a stripped wiring plate/panel, needs instruments transplanted to it. They got some Diesel clusters ones too for sale. Think with all instruments about $200-$300.

I'm guessing as I transplant my instruments to the cluster panel that I may want a new fuel gauge to go in there if you got one of those?
 

Kaajot

Micro Machine Manager
Yeah 100% I have the Tach because it's a 12 speed H/L manual carb, with choke/throttle and I always play with it to keep RPMs at the right level and avoid the engine quitting on me as its warming up. Also helpful for monitoring how much power I'm sending into the PTO of the dump operation.
 
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