Holley Choke??

[Mopar-Charger]

I have a Holley 750 (3310) <-- I believe

Has electric choke but it will never go on? It's getting cold so I need it, otherwise I'll freeze my nads off each morning. Anyways there's this little red plastic thing between the electric choke and base of the carb. If I manually put it on it will work? Makes it have a fast idle, but the choke butterfly stays wide open.

Has the two prongs 1. Negative 2. Positive Both work, tested.

How do I adjust the choke too? I can't spin the nob like I could on my edelbrock

I'll add pictures if you guys need it.

Thanks,

Jake

 

[coloradodave]

Pictures would be helpful...

 

[JamieZ]

Usually holley chokes are full on (closed). But to adjust them there are 3 phillips screws on the choke cap (one towards the top front, rear front and then usually one on the bottom that is a pain to get to ) loosen them and turn the cap clock wise or counter clock wise to adjust the opening point. There should be a mark on the metal and then the cap has a series of dashes. Default is right in the middle.

 

[themechanic]

Check for 12 volts ignition on run on the red lead and a good ground on the black.

Posted via Topify on Android

 

[JamieZ]

Here is a photo of mine.

The silver screws are the ones you loosen (and the one on the bottom you can't see)

You can see the mark on the cap and the marks on the carb body. I believe clock wise makes the choke come off at a lower temp, counter clockwise makes it stay on longer.

 

[65-440]

Only adjust the choke spring when the choke is engaged! Very easy to setup, unless you need to adjust the fast idle screw, that can be a pain. Might wanna invest in a Holley book, tons of useful info if you don't have much experience.

 

[coloradodave]

Turn the cap clockwise to stay on longer, counter-clockwise to come off sooner.

 

[Mopar-Charger]

1. If I push the idle up and engage that red thing, it will hold fast idle until it hit the throttle. Won't automatically engage.

2. It's turned all the way clockwise.

I will post some pictures in the morning.

 

[65-440]

Make sure the car is cold and the key is off, key on will heat the spring and cause your choke to not engage. Now, when cold and key off pull the air cleaner and pull the throttle back by hand. Does the choke engage and the choke horn butterfly close(but not fully close) ? If so move the butterfly open by hand and look down into the venturies to see the main butterflies and check that gap. Adjust accordingly ... obviously easier with the carb off the car, but doable on car !

 

[JamieZ]

If its all the way in one direction and not doing what you want, I recommend putting it back in the middle and seeing if it is better. Then adjust from there. Unfortunately choke adjustments require everything to get cold again for the next test.

 

[GearAddict]

I second confirming that you actually have 12 volts on the choke positive wire...

Also, I once removed the choke assembly on an Eddy carb and accidentally put it back on without paying attention that the tab on the bi-metal spring inside was on the correct side of the "choke lever" (not sure what it's actually called). It would never open, because the spring would expand but wasn't engaging anything.... This would be the last thing to look at, but if you exhaust all the other options (it only takes 5 mins to take the choke apart and reassemble).

 

[Garys1969RR]

Yes, it sounds as if the bi-metal spring is on the wrong side of the choke lever, as Gear Addict said. Turning the housing all the way clockwise should get it to close. And that red thing is called the fast idle cam. It should move up when the choke goes on. Then when the choke opens, it will drop back down and let the engine idle normally. Take it off of there and check for correct assembly.

 

[Mopar-Charger]

I put the nob back in the middle and it engaged both the fast idle and the butterfly. However once I hit 160 Degrees (normal running temp) the fast idle is still initiated and the butterfly is all the way open? Do I need to adjust it to come off earlier? or is there a problem with the fast idle?

 

[67 coronet]

if you are saying that once the choke plate opens and you pop the throttle,the fast idle is still engauged.then yes,there is a problem.fast idle is adjustable,its on the same side as the idle speed adjuster.may try adjusting the choke a bit more in one direction or the other,just to see if fast idle comes off.

 

[HT413]

Here ya go, I installed mine before last winter, followed the directions and it worked great. As others have said, you'll have to loosen the cap and turn it to adjust to your needs. Easy peasy.


http://documents.holley.com/199r7972-5.pdf

 

[JamieZ]

Also keep in mind it will not automatically drop off fast idle. You need to blip the throttle to get it to switch idle circuits....at least on every Holley I've ever used.

 

[Mopar-Charger]

I had the choke and fast idle on, drove to school and still had the problem? isn't that enough to make it switch idle circuits?

 

[67 coronet]

yes,a few miles is all it should take to shut off.could just need some fine tuning.try moving the adjustment a couple of hash marks counterclockwise and see if that works.