Re: {Chrysler 300} 300 H carb
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: {Chrysler 300} 300 H carb



hi the big screw is air only for both barrels per carb as there is no traditional curb idle screw to hold carb throttle open  a bit to idle , they close tight on a ram , once warm 
keep  both sides on air valve exactly the same turns from all in . They wanted a good  balance  side  to side — why they did this , otherwise linkage would fight two independent  settings  
there are two front barrels with a throttle plate in each  one  , may  not fit exactly the same so two screws in front allow separate gas flow at idle  but in reality keep both pretty near the same number of turns out 
The stock screws wear from endless   playing with them , as does carb seat inside , after many years action  becomes almost on off instead of smooth change you need 
Edelbrock screws fit Edelbrock carb it is an  evolved AFB , they fix that . huge discovery for me , before  that i always got the feel  the screws “ did not work right “it “ one  did  nothing etc  ”   
my experience
Dont worry about too many emails , we all share and learn ; I hsve learned so much here . use factory ram info you should be good!    

On Oct 25, 2024, at 8:56 AM, Drew W Carl <drew@xxxxxxxxxxxx> wrote:



I am sending this to each person that replied to me individually. I have never quite figured replying in this server so that everyone doesn't have to see my emails over and over again so this is what seems the most logical.

I got back to work on this yesterday. I verified the choke is coming off. I am starting to understand the high idle cam and it seems that the stop is still on that cam but just barely touching it. I did find the carb nuts slightly loose, one in particular was close to a full turn so I think I had a vacuum leak there causing a lot of my issues. I did put a vacuum gauge on the car and was fairly steady at 15 and climbed to around 18 with a little throttle so I am thinking I am okay there. 

After snugging down those bolts and following the directions Bob sent me on John Holt's site and I was able to get the car to idle at least though it is still a bit rough. I have a couple questions, the main one being what exactly are the mixture screws doing vs what the idle bypass screw is doing.  The next is why are there two mixture screws? Should one be used differently than the others? Should they be used evenly? 

John - What do you mean by E needles, the edelbrock screws? Any idea where I would get those? Just look up edlebrock idle screws for a carter afb?

The car has never really run right and has always felt rich to me. It has always stumbled when the second carb kicks in pretty badly and takes a lot of throttle to come out of that stumble. I don't intend to race the car but it would be nice if it ran correctly. It also seems to guzzle fuel which would make sense with my thoughts that it runs rich. Another odd thing is it throws a ton of water and soot on startup, but only from one exhaust pipe not both.

On 10/22/2024 8:51 AM, John Grady wrote:
try edelbrock idle screws , the old ones if “ adjusted” a lot get rings of wear around cone cannot adjust right .become on -off action .  E needles are slightly   different angle etc will seal in a new place 

On Oct 22, 2024, at 6:24 AM, Bob Merritt <Bob@xxxxxxxxxxxxx> wrote:



Hi Drew;

These dual AFB Carters are a little different because of their

bypass screw. There is a section in the service manual,

see 14-37. If you don't have a service manual you can

use the one on John Holt's site

http://www.jholst.net/62-service-manual/fuel.pdf

Give a shout if you need anything else.

Bob


On 10/22/2024 1:17 AM, Drew W Carl wrote:

Hello all, Attached is a picture I took today of my uncles 62 Sport. Many of you are aware of this car, it has gotten around a bit the last couple years. It has a inline dual setup just like an H would have with the 413. My question is does anyone know of any videos, or documents I could use for adjusting the carbs? The car runs but has never run quit right, it has always seemed rich to me. I am fairly handy mechanically, but have never had much experience or skill adjusting carburetors. When I took it to this bridge today to take the pictures the car did not want to idle at all. Previously it idled fine, had the carbs and intake off at one point and it has not been right since. I tried to adjust it a while back and made it worse, and now I don't recall which screw I even turned.

--

 

photo

 
 
 

Drew Carl
Owner, eScore 

Phone: 724-288-6636

Email: Drew@xxxxxxxxxxxx

Website: www.escoremx.com

Address: 523 Westland Rd. Hickory PA 15340

--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/0427b252-d84a-4a46-add3-a99fbe103711%40escoremx.com.
--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/07650013-8284-454c-b0e7-866d4d3d7694%40simplexco.com.
--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion on the web visit https://groups.google.com/d/msgid/chrysler-300-club-international/94FB8C43-ADD7-4D6A-AF4F-8A91D6136F79%40gradyresearch.com.
--

 

photo

 
 
 

Drew Carl
Owner, eScore 

Phone: 724-288-6636

Email: Drew@xxxxxxxxxxxx

Website: www.escoremx.com

Address: 523 Westland Rd. Hickory PA 15340

--
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang
---
You received this message because you are subscribed to the Google Groups "Chrysler 300 Club International" group.
To unsubscribe from this group and stop receiving emails from it, send an email to chrysler-300-club-international+unsubscribe@xxxxxxxxxxxxxxxx.
To view this discussion visit https://groups.google.com/d/msgid/chrysler-300-club-international/5E073B23-DFBF-469C-B4BE-1482FB978A17%40gradyresearch.com.


Home Back to the Home of the Forward Look Network Archive Sitemap


Copyright © The Forward Look Network. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
This site contains affiliate links for which we may be compensated.