I have never worked with a carb before. Does anybody know what should be attached here?

 

That should be ignition-switched 12 volt power for the electric choke.

There should be a connector for it somewhere around there.

 

my 84 camaro had its cut too. you have to find the wire where it was snipped. another option if you can find one is the get an oil pressure activated switch and screw it into the block and run a switch power source to it then to the electric choke. but it's much easier to find the cut wire.

 

Thanks for the reply. Do you think that wire 2 on my other thread (https://www.thirdgen.org/forums/elec...=1#post3530678) is the snipped wire?

 

Or, could I just run a 12V wire on relay with engine start straight to that clip?

 

Okay, I remember your earlier post on the Tech forum. But, I don't go to the electronics forum very often, so I missed that one.

Now, I'd agree the light blue is probably your choke thermostat wire. Verify that by checking the voltage with switch off, switch on, and engine running (have you gotten it running yet?). If no voltage until the engine is running and the alternator is charging, that's the right wire.

So, differences between '86 & '87: I'm not sure about Canadian-delivered cars, but in the U.S., '87's got an in-tank electric pump as well as the engine mounted mechanical. The center two intake mount bolts on each side were at 72 degrees instead of 90 like the rest. Had centerbolt valve covers.

Never heard for sure if it has a vacuum advance distributor.

As to your other wires: No clue on #1, #3 looks like the AC pressure switch (but your car doesn't have AC - maybe it was removed and an AC-delete box installed - the bracket on the driver's side looks like an AC bracket).

 

Disregard my earlier. Looked at the photo again and it's not where I thought it was. Oh well.

 

did you get it fixed?

 

So I had planned on spending the day working on the choke and idle. When I tested the blue wire when car was off, 0V, tested when on ~9.5V. So this, to me, seemed reasonable for the electric choke. I hooked it up, started the car, and then noticed that it moved the choke arm (after about 2-3 seconds, engine was warm though, had already drove it for about 10 minutes). So I was confused and though maybe something had damaged in the thermo spring. So, I start to take it off and notice a hose running from the front of the carb to the thermo spring and realize my choke has been hooked up all this time, not electrically though.

So, on to a now more pressing problem. Why when the choke arm is moved due to the heat (it pulls inwards - towards the front of the car), it does not pull the choke open. I don't really know how to explain it, but it moves the little mod rod's end about 1.5" maybe but that is towards to front of the car, where it has like free play on the valve handle.

I don't know the actual names of the parts, nor do I know what is wrong. It looks like to open the choke, it needs to push down on the valve handle, but it seems to be pulling forward.

So, maybe I should just bend the bar so it will pull down, but that seems a little odd because it looks like it is bent this way for a reason.

 

I still have to look and find out if it is vacuum advance. The timing is set at 180 off, so I guess the cap must be 180 off too....who would think an older car would be this complicated.

 

okay i think the shaft that's connected to the choke coil has slipped out of the linkage. I had that happen before too. so to check again, is it really loose, like you can move it really easy from open to closed?

 

Sounds like you're describing the choke pull-off, called "vacuum break" in the GM vernacular. Although associated with the choke, it is not operated by the choke thermostat but opens the choke butterfly slightly when the engine first starts. The rest of the opening action of the choke butterfly is done by the electric thermostat.

 

Well, you are right! I have been reading about the choke pull-off and it is what I thought was the choke. So, now I guess I will re-do today's job tomorrow and actually look at the choke.

 

wow i am really confused. was the problem the electric choke or the choke pull off from the beginning?

 

It is definetly the choke, but when I was trying to fix the choke, I was looking at the choke pull off the whole time. Why? Because I could see it right infront of me...I have no idea.

It's my first carb, and I am pretty unfamiliar as it seems.