Choke

[shanezoid]

On my 83 calasis 307y when I first crank it up for about the first 5-10 miles I think the car is flooding itself. It doesn't idle high but it is like the choke is stuck on. After that it runs like a champ. This weekend I plan to change out the plugs but I don't think that is the problem. Any suggestions? Also I plan to replace all the vac lines just to eliminate that. How do you adjust the choke? Thanks Shanezoid.

 

[shanezoid]

Anybody have any suggestions. Shanezoid.

 

[85 Cutlass Brougham]

It will all depend on if it has been rebuilt or not. If the choke coil is retained by pop rivets, you can't adjust it until you change the rivets to screws. The screws come in rebuild kits, or from earlier cars in the junkyard. Once you have the coil retained by screws, what I like to do is at night, hold open the throttle while turning the choke coil cover until the choke just barely seats, then go slightly past that. This way, when it is warm it will pull off quickly and when it is cold, it will stay closed a little longer.

 

[shanezoid]

Mine has rivets can't I just drill them out and use my own bolts? Thanks Shanezoid.

 

[85 Cutlass Brougham]

Pretty much that's what you do. I would use screws though.

 

[shanezoid]

When you crank the car for the first time or it is cold is the butterfly suppose to be open or closed. Does or can anyone take a pic of the vac lines just so I can see if mine are correct. Thanks Shanezoid.

 

[dudeface]

when the cars cold............the number of times you pump the pedal, the more closed the chokes gets. I find if the choke is set right , 3 pumps of the pedal before ya start it is best


peace

 

[shanezoid]

And does the heat from the heat tube comming from the manifold make the choke come off. So that means the butterfly is closed right. Thanks Shanezoid.

 

[joe_padavano]

when the cars cold............the number of times you pump the pedal, the more closed the chokes gets. I find if the choke is set right , 3 pumps of the pedal before ya start it is best

Sorry, that is not correct. The amount that the choke closes is solely a function of the choke coil. The first time you press on the throttle, the coil closes the choke as far as it will go. Each subsequent stroke of the throttle shoots more fuel in from the accelerator pump (which helps to overcome an improperly adjusted choke) but has absolutely no effect on the position of the choke plate.

Prove it to yourself. Remove the air cleaner on a cold car and watch the choke plate while someone else presses the throttle. The plate will not close any more after the first press.