Re: {Chrysler 300} AFB question

exactly right , you

mean left and right venturi parts or gaskets within one carb , correct , not left and right carbs? which are ( I believe ) identical ?

I had a problem where a csrb has been recently rebuilt by others , as proven to me by a swap I made to another whole ram carb

which worked ok . I seem to remember a mechanical venturi key too ?

While from memory and long ago i took apart and noticed a different hole pattern where venturi joined the main body of the two sides . But pattern on either side did not align perfectly . This was further complicated by the gaskets were slightly different and one covered a hole seemingly blocking it .On purpose?

However the gaskets can be flipped over 180

as well as two

places to

put them and still fit the space but various passages are blocked or restricted . So — many ways to put together wrong .

I could not find this info anywhere , nor would you notice it unless you knew or were hyper aware or just lucky . Or kept parts right side up and separate .

i believe i compared it to another good carb and blew up a picture in fsm or repair parts list especially regarding the gaskets

But immediately the question arises if someone else rebuilt it wrong and you copy that !

Sorry for lack of more specifics on this — but yes there is an issue there of incorrect assembly for sure . jg

Sent from my iPhone

On Dec 4, 2023, at 7:29 PM, John Nowosacki <jsnowosacki@xxxxxxxxx> wrote:

I was reading my 60 Service manual over the weekend, and I saw something interesting in the carb section on AFB rebuilding. There were instructions highlighting the fact that the venturi assemblies were not interchangeable left to right. Not an issue during any of my rebuilds over the years, as I always did one side and then the other, and did not have them both out of the carb at the same time when cleaning them and installing new gaskets, but since the gaskets seem identical, what is the difference between the left and right side assemblies? Are there identifying marks/numbers on them anywhere? Next time I take mine apart, I'd like to double check that they weren't switched side to side during some past rebuild before me, since I didn't acquire my car until 1998, some 38 years after it was originally put together. I'm guessing that the written warning was there because the assemblies could be reversed in their positions and the carbs would still go back together, but would somehow be wrong and not operate as designed?

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