Ive got an 84 buick estate wagon that doesnt have the original engine, intake, and carb. not sure but i think the 307 thats in there is from the early 70's. I have removed all sensors and its running very well, but the choke is missing so it is hard to get it started when cold. This isnt the electric heater on the side of the quadrajet in a round housing choke, but rather a quadrajet with a lever on the side with an eye, it ajdusts up and down to choke the carb. the intake has a egr blockoff like plate on the intake under it. from what i have read this is called a divorce choke and the temp coil sits in the intake and it has a lever that sticks up and connects to the carb. question is, where the HECK do i find it??? parts stores are clueless and all the internet searches i did resulted in only an electric mod that would connect to the carb to update it. surely this part is available somewhere. I even piddled through the junk yard one afternoon looking at old 60's and 70's cars, and i found one that was similar on some 6 cylinder dodge, of course it wasnt the right size.
Your first problem is that the divorced choke coil requires a special intake that has a pocket for it to sit in. If yours is the original 307 intake, you won't be able to use a divorced choke. You either need to swap to a 68-69 Olds 350 intake with the divorced choke pocket, or you need to use a different carb. The choke coils are available as repros. Here is one source (scroll to the bottom of that page): http://www.carburetion.com/choke2.asp
its a 307/intake/carb that matches, or atleast i think it is a 307?? is their another olds engine that it could be and still look the same, i know the 305/350's were very similar in chevys. someone else dropped that motor in it and it mounted to the original tranny. i purchased valve cover gaskets for an 84 307 and they fit it. I know this set is not from 84 as the carb is missing all of the tps sensors etc that an 84 quadrajet would have had. im sure the guys who swapped the motor probably just pulled some engine from a junk car with everything on it but exhaust manifolds, there was even an extra distributor in the trunk. the intake has the pocket, but it has been plated off, all hardware from the intake to the carb looks to be MIA, the coils at the bottom look like they could work, but are missing the part that covers the pocket and allows the temp coil to push on the carb choke linkage. maybe if i knew what kind of vehicle the engine setup could have come from i could do some better junk yard searching. I like the setup as it is since i did away with the ECU and smog and it doesnt have all the BS sensors im sure the 84 electra had, i cut about 15-30 wires with plugs out of the harness that were unnecessary. anybody know how i could identify this motor as to what type it is and year, eventually i will replace the engine and i dont want to just go get one for a 84 electra, would like to replace one identical to the one thats in it.
Is this an oblong plate on the passenger side of the intake, held with two bolts to the top of the exhaust crossover? That's for the hot air integral choke that would have been stock on the 307. The pocket for the divorced choke is a roughly square "box" about 1.5" on a side that is raised on top of the crossover. There is no need to cover it since it does not have an opening to the exhaust crossover. A photo would help. http://www.oldsmobilewiki.com/index.php?title=Category:Top_level Browse the catagories for blocks, intakes, and heads to find casting number data.
