Zenith 2 - Is this OK?

[BruceM]

I'm in the process of trying to get this carburetor to work better. But I am not very familiar with operation and adjustment yet. The car currently runs rich and wants to stall on deceleration.

The butterfly has this notch cut into it. It looks rather crudely done so I suspect someone added this somewhere along the way. Do I need to fix this?

The car will idle very slowly, so I'm thinking its not hurting anything. Any comments.

Bruce

 

[Sparky]

Welcome Bruce,

If it was my carb and it idled OK I'd leave the notch alone. For the other symptoms, stalling at stops is often caused by incorrect float level. Rich running could be caused by incorrect jet sizes or a GAV needle that is worn. This site has a good chart to use for troubleshooting:

www.modela.org

 

[johnbuckley]

Totally agree Sparky- if it ain't broke don't.... But is www.model-a.org and www.modela.org website(s) down . I have been trying to accesss model-a.org for about a week now.

 

[Sparky]

www.modela.org (without the hyphen) works for me. I just tried it.

 

[RUNNERBUN]

But is www.model-a.org and www.modela.org website(s) down . I have been trying to accesss model-a.org for about a week now.

Just tried both links and they don't work for me either.

 

[Jwilli]

Both sites work for me.

 

[Sparky]

Just tried both links and they don't work for me either.

Both of you are outside the US, maybe that is significant.

 

[RUNNERBUN]

Both of you are outside the US, maybe that is significant.

That's interesting, I have been able to connect in the past but cannot do so now. Maybe someone more computer literate than I might chime in.

 

[Hoogah]

That's interesting, I have been able to connect in the past but cannot do so now. Maybe someone more computer literate than I might chime in.

Your router may need adjustment. Try that 2 lb hammer.

 

[TinCup]

I have seen the notch before and was told it was a way to improve idle. If your Zenith idles and runs well I would not mess with it. Tom Endy has a great set of articles on the Orange County Website. Study these and you may gain more insight. If you flush your DNS cache you should be able to hit the other sites.

To clear your DNS cache if you use Windows 7, perform the following steps:
Click Start.
Enter cmd in the Start menu search text box.
Right-click Command Prompt and select Run as Administrator.
Run the following command: ipconfig /flushdns. If the command succeeds, the system returns the following message: ?

 

[Mitch//pa]

if it was my carb i would spend the couple dollars on a throttle plate and 2 screws.. if your shaft has play put in an oversize at the same time...my carburetors idle just fine without the notch

 

[1931 flamingo]

Both just worked for me.
Paul in CT

 

[glenn in camino]

In my experience, stalling at stops is caused by an air leak from a loose butterfly shaft. Most suppliers offer a bushing kit to make the shaft tight.

 

[RUNNERBUN]

Your router may need adjustment. Try that 2 lb hammer.

Believe me, I have been very tempted at times.

 

[RUNNERBUN]

To clear your DNS cache if you use Windows 7, perform the following steps:
Click Start.
Enter cmd in the Start menu search text box.
Right-click Command Prompt and select Run as Administrator.
Run the following command: ipconfig /flushdns. If the command succeeds, the system returns the following message: ?

Tried the above fix on my Windows 10 lap top, still no go. Also tried to access modela.org on my desktop Vista OS computer and can't log on there either.
Appreciate your attempt to help.

 

[johnbuckley]

Ah ha! just went onto windows 10 about a forthnight ago so p'raps its a case of foreigners and windows 10!