Carb sprays gas into the air?

[Bextreme04]

I could definitely use some help with it. I assume that originally it had a switch in the cab to switch it to on choke or off? I thinking to fixed it i'd need to run a wire through the fire was to a switch, and then a second one back to the carb? I don't know where would be the right place to get the power from

No, a stock 85 gas engine would have had an electric choke. Basically a power wire(20A) runs from an ignition source, through an oil pressure switch that goes into the block at the port right above the oil filter and then straight to the electric choke. When power is not applied to the choke, the spring inside pulls the choke on(just like the thermostatically controlled chokes). When you start the truck, the oil pressure switch closes and lets power flow to the choke. This heats the spring element up and pulls the choke off. The power should be applied to the choke the entire time the engine is running, otherwise the choke will come back on.

 

[SirRobyn0]

@jfrancom101 Eric has given you a great explanation of how the system works, but I'm going to add, no there would be no switch in the cab. The system is fully automatic, and the electric choke coil receives power anytime the truck is running. The power to the heats a bi-metallic spring inside the choke housing which opens the choke.

 

[Rusty Nail]

*clocks out*

Glad you got it fixed, dont worry - we'll send a bill.

 

[SirRobyn0]

I'm not saying this to take anything away from anyone, but since @Rusty Nail brought it up I do get paid for giving automotive advice on another website. But I love square bodies so much I give it away for free here Heck I'm still learning too! No matter how long a guy has been turning a wrench there is always something the learn!

 

[jfrancom101]

Ok so here's what I got. the oil pressure sensor isn't right on the block as shown in the pictures. its actually a little plastic hose that runs oil to the gauges. Not the original gauges, it looks like in the switch from diesel to the 5.7 maybe they had to redo some things like that... There was a small oil leak that leaked right onto the floor mat and I found where the wire was a little cracked to that explains the leak. Not sure how to go forward with the choke though...

 

[jfrancom101]

I'm not saying this to take anything away from anyone, but since @Rusty Nail brought it up I do get paid for giving automotive advice on another website. But I love square bodies so much I give it away for free here Heck I'm still learning too! No matter how long a guy has been turning a wrench there is always something the learn!

For sure! Well I sure do appreciate the advice. Not sure I would have gotten the truck running without everyone help.

 

[82sbshortbed]

I just rewired my electric choke because it was not getting a good 12v. More like 8 or 9v. Just find a good 12v wire with key on. No use in putting a switch in it when you can use your key on as a switch. Glad you got it running.

 

[SirRobyn0]

I just rewired my electric choke because it was not getting a good 12v. More like 8 or 9v. Just find a good 12v wire with key on. No use in putting a switch in it when you can use your key on as a switch. Glad you got it running.

I don't know what's up with that, I've seen more than a few choke wires that were getting less than 12 volts.....

 

[Grit dog]

I don't know what's up with that, I've seen more than a few choke wires that were getting less than 12 volts.....

Old car-itis maybe?
My electric choke wire was batting out of it's league, running the fuel pump and the choke, when I bought the truck!

 

[jfrancom101]

I just tested the electric choke with alligator clips and it looks to be broken... I got it used for a good deal so I guess i can't com[lain too much, but what would be my options?

 

[AuroraGirl]

I just tested the electric choke with alligator clips and it looks to be broken... I got it used for a good deal so I guess i can't com[lain too much, but what would be my options?

a new choke coil

pricy but i think that is your best bet to fix it
Im not gonna lie this looks to good to be true

Quadrajet Electric Choke Coil Thermostat NEW. Flat Terminal. Quadrajet Power LLC | eBay

Custom Quadrajet service, Quadrajet Parts, Fresh built Quadrajets. Quadrajet Power LLC. Quality Quadrajet parts, new and used. Complete Quadrajet services.

www.ebay.com

20 some dollars and its "Quadrajet Power" brand.. but yeah

edit: spaced he has a edelbrock so rip

 

[SirRobyn0]

I just tested the electric choke with alligator clips and it looks to be broken... I got it used for a good deal so I guess i can't com[lain too much, but what would be my options?

I would do as @AuroraGirl says, buy a new choke coil. They are like $20, and that electric choke system if you take the time to set it up right, the truck will run really good though the warm up period without you having to even think about what the choke is doing.

 

[dvdswan]

It would have been cool to add color to the spray. Then you could say you were purging you NOS like the tuners do.

Glad you got it fixed.

 

[Dutch Rutter]

Isn't OP using an edelbrock? If so this is the kit you'll want to rebuild the electric choke. If OP is using the other carb disregard this post.

Edelbrock 1478 Edelbrock Electric Choke Kits | Summit Racing

Free Shipping - Edelbrock Electric Choke Kits with qualifying orders of $109. Shop Choke Kits at Summit Racing.

www.summitracing.com

Side note: The edelbrock 1405 normally comes with a manual choke the 1406 has the electric choke, so the original owner looks to have swapped on the electric choke. Might want to go through it and make sure it was done correctly while your at it.

 

[jfrancom101]

a new choke coil

pricy but i think that is your best bet to fix it
Im not gonna lie this looks to good to be true

Quadrajet Electric Choke Coil Thermostat NEW. Flat Terminal. Quadrajet Power LLC | eBay

Custom Quadrajet service, Quadrajet Parts, Fresh built Quadrajets. Quadrajet Power LLC. Quality Quadrajet parts, new and used. Complete Quadrajet services.

www.ebay.com

20 some dollars and its "Quadrajet Power" brand.. but yeah

Would that brand actually work on my edelbrock you think?