Ok 1968 chevy 307 2 brl stock intake. Bouoght a rochester 2GV to replace the 2G that was on the truck. This one has the vacuum choke pulloff. I'm now trying to install the choke spring. Problem is that it looks like the choke spring will pull the choke opened when cold rather than vice versa. This is the choke spring that fits into the intake right to the left of the carb if looking from the front of the truck. Does the spring expand when hot? (I believe that it should) Or does it shrink. based on the instalation, it (choke spring) has an alignment pin on one side and a screw to secure it to the intake on the other, so it can't be installed wrong. Problem is that from looking at the way it would pull on the choke plate looks like it would pull the choke opened. Is it the rod that forces the choke to open, i mean is it the way the rod is bent that would force the choke to close when it's cold? It looks to me like it's wrong... can't see how it's going to close when cold and open when hot... The carb is a rebuilt Delco and the ear on the choke plate butterfly can only go on the way it is and 180 out due to a keyed shaft. It will certainly not work 180 out. I tried it way way off... any help would be greatly apperciated... Thanks!!!
soba: Man, I'd like to help you, but everytime I've had a 2-barrel come my way I toss it. Not because they are bad, but because I always run at least a 4-barrel. If I had one around for reference I would gladly help. John
John,I completely understand. Trust me there have been several times in the past month where tossin it is what I wanted to do. I went and put the manual choke back on it. Something to consider, because there are only about 1000 different comb's of chokes out there. Would it be something to consider to do an article or so on chokes for the Mag. I know that I'm not the only one that has had choke and choke adjustment problems. I know that many folks build some beautiful builds and drive them. If it looks good and runs good on a summer day but can't get out of the garage in the cooler days what good is it? You know what I'm saying, most folks can straighten out a body, paint redo and interior even build a bad motor. But then they bolt on a "horrible nightmare that they don't know anything about" the Carburetor. Something to consider. I'll still ask and still read the mag even if I only have a 2 barrel... Thanks... Enjoy,,,,Mark
There's a good chance of running a tech on chokes. It would include the other things that have to be right like heat butterflys and thermostats, fast-idle linkage, etc.Talk to you later,
I would certainly look forward to that as I'm sure that many others here would. Thanks!