sakins.02vert

HI All,

I have a Holly 600 CFM carb on my 76 L82. My mechanic put it on for me and said he didn't hook up the electric choke as we were trying to figure out tuning, etc.. I now have the car running the way I want it and would like to hook up the electric choke since it is very hard to get it started after not running it for a day or so.

Any tips?
Thanks

76yellow

Hook it to the yellow wire on the wiper motor.

Manuel Azevedo

As above hook up is fine but also remeber that you need a ground wire also. Their are two lugs on your carbs choke, one is a ground and one hot. A wire just to the carb it self will work for your ground.

sakins.02vert

Thanks Guys, I'll give that a shot

centralcalvette

I'm sure the wiring info above is correct, but that just turns on the heater unit to open the choke once your engine is warm. Cold, you should pump the gas pedal or linkage once and the choke should shut on it's own. If it doesn't shut, you'll need to loosen the three screws and adjust the choke spring until it works correctly.

sakins.02vert

OK, so it's connected. The pos wire goes to the wipers lead, If I put a volt meter on it with ignition on I get 11.6 volts.

Why doesn't it work?

mds3013

Inside the black cover there is a "spring" actually a bi-metal coil that must hook to the choke plate lever that is inside the metal housing. When voltage is applied the coil heats up and pulls the choke blade open and releases the fast idle cam. Does the choke plate have a "springy action" or does it just flop around.? If springy then rotate the black housing with the coil cold and that should close the choke plate. You will have to open the throttle to allow the linkage to "set" the choke and fast idle cam. Proper adjustment has to be done with engine and coil cold. Should close or partially close the choke plate when you depress the throttle to "set" the choke. Amount of closure depends on temp. of coil and outside ambient temp. mike...

DRIVESHAFT

Define doesnt work.
It doesnt close or it doesnt open?

sakins.02vert

I think it doesn't work because the arm that goes up to the choke plate never moves and I assume that choke plate is supposed to close when the car is cold? I think?

DRIVESHAFT

Loosen the 3 screws around the choke housing & turn it.
Does it affect the choke plate position?

sakins.02vert

Sorry, I'm obvioulsy new at this.

the choke blade (think you mean the choke plate cover that I think should close on the top of the carb)? The arm that connects to that never moves. I turn on the ignition and try to start the car, it never moves the choke plate.

The choke plate is just floppy, not springy. Does that mean it's not adjusted right?

Also, even if I try with my hands I can't close the choke plate all the way. It doesn't move much at all

sakins.02vert

"Loosen the 3 screws around the choke housing & turn it.
Does it affect the choke plate position?"

OK, I'll try that now

sakins.02vert

ok so a little more detail.

I loosened the screws on the black cover, if I turn it I can see the arm move the choke plate. But it isn't able to close it much. It goes form straight up and down to turning to the side just 15-20 degrees. Not much. What should happen? Are these screws supposed to be loose?

DRIVESHAFT

When the choke is cold, you should rotate it until the choke plate barely closes.

Also as mentioned above, you do have to open the throttle a bit to allow the choke to fully set.

sakins.02vert

so while I hold the throttle at WOT, with one hand, then with the other turn the black cover until the choke plate starts to close? Then tighten the screws on the black cover? How far does it close? all the way?

sakins.02vert

ok so I held the throttle wide open and turned the black cap until the choke plate closed all the way. Now it just stays closed.

sly vette

If you adjusted it to where it closes when it's cold and it doesn't open after voltage is applied then it is defective.

sakins.02vert

ok so I adjusted it so it is closed when WOT and ignition off.
Then when voltage is applied it doesn't open at all.
Then when trying to start the engine it opened a little.
Is that how it's supposed to be?

mds3013

Airflow across the plate causes it to open a little. To ck. your heated bi-metal strip, remove the three screws that hold the triangle shaped ring remove ring and black cover. With wires hooked up apply your 12v and see if the bi-metal/spring begins to wind or unwind. I can't remember which. Be sure to not short the wires. If the end of the coil does not move within a couple minutes then there is an open circuit between the pos. and ground in the cover. You can ck. for continuity with an volt/ohm meter when set to diode ck. or ohm ck.. mike...

centralcalvette

It's going to take several minute for the spring heater to heat the spring, you don't want the choke opening up immediately anyway. Key on, 5-10 min, hit the throttle and it should open...