Ive got 3 of the rochester 2G carbs..all of them have this little "pin like" deal that sicks out of the back of each carb...there is a little spring on each pin pulling tension on the pin like "thing"..one of the 3 dont have this spring. the spring is about the size of the spring in a ball point pen. what is the deal with the spring? and if im missing one..is it important? sorry no pictures..cant get the dam thing to load right..so rather than have a red X picture, i was hoping that i described it well enough.
gonna try and load it..hard to see it..but its the tiny lil' ****er on the back of each carb, if you look at the front one you can see the "pin" looks like a limp ****..'cause it dont have the spring.
I believe it's a vent, like that bowl vent that some carbs had on the top of the cover that were actuated by a lever that contacted the throttle arm at idle.
ahh..that could be, wonder what it would do if no spring? it doesnt get actuated by nothing..but it could still be a vent of some sort
I have tied to locate a good diagram that covers this detail to see what its all about..2 of my carbs have the spring on the pin, one does not. I was wondering if I lost a sping in shipping..and if so where i can get one or if i can improvise using a ball point pen spring?..not sure if its critical or if it just needs to pull pressure on the pin.
I got a 2G tri-power setup and don't have a spring like that. Mine runs fine and has for the last 52 years.
That device is for smog. It is on carbs from about 64 - 69, roughly. The early V-8 carbs had breathers with little round caps above the float bowls. The later carbs had a vent that is acutated by the linkage.
It is called a hot idle compensator. later carbs didnt have them. I learned carb work overhauling those very carbs 40 + years ago under the watchful eye of my Uncle who was an absolute genius with carbs and ignition. It doesnt require anything on yorpart other than cleaning and re***embly the same as that part is installed now. Early 60s BTW Don Don
a few better pictures..well somewhat better..lol first one shows the spring..second one the lack of a spring
Thats right!..and we sure know them Commies need some killin' before someone gets their ******* in a bunch..were just f-ing around...gee cant even have a bit of fun with out worring that some one will get all PC on your ***
Hey VonRigg, i'm working on a set of those right now off a 65 GTO. These don't have that circuit, i think to elimate the springthing you should replace the throttlebody gasket with one that dosn't have the 2 vapor slots in it. Then you can plug the outside. What'd the ****ster say? Seems like there should be something else against that spring. Let us know.
****ster hasent answered me yet..oh I dont feel like ****ing with it..you know the old saying if it aint broke dont fix it..just curious as why they are there..and if missing one will change anything or not..looks like a very simple fix if it is a necessary part for it to function correctly..
Thank you very much Tommy..I have been looking at some old service books I have, and had not yet ran across this particular set up..yet. Guess i need to find one of those springs..maybe ****ster may have one.
***uming you are going progressive, I'd put the best one on the center carb and not worry about the end carbs. You could plug the p***ages with epoxy on the end carbs. It's there for a better idle under very hot conditions. Not needed on the dumper carbs.
Hey guys. The real skinny is it's a useless piece of hardware that Rochester made to keep GM happy. Take the 2 little, teeny, weeny, tiny screws out of the plate and strip the spring plunger and ring out of the plate. I don't eliminate the plate cause it makes the carbie look like ****. So, now take a little sheetmetal screw and fill the hole the "limp ****" was in and replace the plate with a new gasket supplied in the rebuilt kit. That's my story and I'm stickin' to it.
Glad this thread came up, as "Dad" has a tri-power setup that had one of those springs and plungers all mangled on the flat end. Hadn't had much luck at finding a replacement. Which years and applications used this version of the carb?
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