72 cuda, no signal or brake lights

[Slotts]

Is there a test to confirm condition of the whole switch, if so can you enlighten me on the process , please?

Have a look at the attached PDF file. Hope that helps.

Jim

[cudastu]

First of all, thanks to all that jumped in to help me with my lighting problem. Had to abandon the project for a while as priorities came up that needed my attention more than my cuda needed me. Hope you understand. But, i'm back on it now..

I fixed the brake light issue with a new turn signal switch that I modified slightly--shaved a bit off the nylon base to try and get better contact to brass connections on the base plate, and it worked. Don't ask me why, but it did.

The signal light problem was a bit more challenging, but when the dust finally cleared, I discovered the problem was self induced. When I had the car torn apart for paint and interior work I decided to do a little under the dash maintenance. I needed a power source for my tach I was installing. I found a radio connector I wasn't using so I whacked off the end plug and there was my power source. Good idea, big mistake! Now who in the world would run power to the turn signal flasher through a radio connector?  Anyway, signal lights are back up and running..   

I do have another question for the E-body gurus.. The four lines off the gas, which one does what? I'm sure one is a supply line, is one a return line? What are the remaining lines? I'm having a bit of a vapor lock (hot fuel) situation and would like to create a fuel loop. Ideas appreciated.
Again, thanks for the help! 

[Chryco Psycho]

I assume you have a 2-3-4 cuda or an Cali emissions as you have 4 lines from the tank , there is usually a 4 line small breather  tank in the frame that the lines connect to , the feed line tot he engine comes from the sending unit the other 4 are for trapping the vapors , if all of you lines are blocked then you have a sealed system with no vent so it could be creating a vacuum inside the tank causing the starvation

[JS29]

Do you notice anything when you remove the gas cap. if what CP said is happening you might hear it, like a sucking sound.   

[Chryco Psycho]

 
I meant to add that 

[cudastu]

Yes, there is a sucking sound when I remove the gas cap. Is this good, or bad?
Thanks..

[cudastu]

Thank CP.. How does starvation caused by clogged line affect fuel delivery to the carb> I assume it creates a vacuum which interrupts the consistent flow?
I'll check out the 4 line to the cannister..
Thanks

[JS29]

Yes, there is a sucking sound when I remove the gas cap. Is this good, or bad?
Thanks..

I would say BAD!!! vacuum lock. For what go's out something has to go in.

[cudastu]

Took cuda for a 5 mile drive, shut off engine, and immediately removed gas cap--heavy sucking sound.

During the past winter while restoring the car, I removed the California emission system. The major component was a large filter canister   that was located to the right of the radiator. Disconnected a rubber hose from that canister that was connected to a metal line that was routed to the back of the car towards the gas tank. When I removed emission components I had capped that metal line.

I removed the cap from the metal line, went for another 5 mile drive, shut off engine, and immediately removed gas cap--sucking sound was barely noticeable. I' hoping I'm on to something.

[Brads70]

Try a vented gas cap? If that's an option at a parts store? Otherwise you need to allow the fuel tank to vent as you say you capped it off.

[cudastu]

I removed the cap, and I will see if a vented gas cap is available..
Thanks

[Chryco Psycho]

Took cuda for a 5 mile drive, shut off engine, and immediately removed gas cap--heavy sucking sound.

During the past winter while restoring the car, I removed the California emission system. The major component was a large filter canister   that was located to the right of the radiator. Disconnected a rubber hose from that canister that was connected to a metal line that was routed to the back of the car towards the gas tank. When I removed emission components I had capped that metal line.

I removed the cap from the metal line, went for another 5 mile drive, shut off engine, and immediately removed gas cap--sucking sound was barely noticeable. I' hoping I'm on to something.

Exactly , you are drawing fuel out of the tank but nothing can replace the fuel so it creates a vacuum making it nearly impossible to get fuel out of the tank , the tank has to be able to breathe somewhere & it can't , it used to draw in air through the carbon canister at the front but you removed it & plugged the line , a vented cap may work But 70 was the only year for that & the filler neck changed as well as the cap when they went non vented so the vented cap may not fit . 

[cudastu]

Going shopping for a vented cap that will hopefully meet my needs..

Off to another small problem. My wife is complaining about strong fuel fume smell at idle. In my attempt to keep peace at home I'm trying to resolve this issue. I've tried timing settings and adjusting idle/fuel mixture with little success. I'm running a 71 model 440 with 284/484 cam, Edelbrock performer rpm intake, Edelbrock model 1412 800 CFM performer series carb, headers and stock mopar electronic ignition. For the most part the car runs strong, good throttle response, but does seem to load up and hesitate on occasion during acceleration. After a little research, I've discovered fine tuning an Edelbrock carb requires a little more than tweaking the air/fuel mixture screws. Would appreciate a little help with this..
Thanks