Carter WCD Issue ‘49 6207

[Joe Jensen]

I rebuilt my Carter 722 from my '49 6207 and it has been running rich ever since.  I doing some trouble shooting and found the culprit.  The carburetor is dumping fuel into the intake.  I have checked the float level it appears to be correct (fuel level at bottom of float bowl inspected screw at idle)

I have included a picture, it just one side that is dumping fuel the other side seems to be working properly.

I know I need to pull the carburetor off and disassemble it.  I was hoping some of you might help me narrow in on where to look for the problem.

Thank you for your help!

Joe

[Jay Friedman]

Joe, it might be the metering rod jets.  They become oval shaped with wear and then cause a rich mixture.  Did you replace them?  The only rebuild kit I know of which comes with new metering rod jets is supplied by the Carburetor Shop in Eldon, Missourri (spelling?). 

If all else fails, you might want to send it to Larry Isgro Carburetors, 1604 Argyle Rd. Wantagh, NY 11793. Tel: (516) 783-1041.  He's always done good work for me.

[Joe Jensen]

Jay:

Thank you for the response, I suspected that the jets could be a problem.  I seem to remember reading that most kit don't come with them anymore and they are a wear item.  The kit I purchased from Terrill Machine didn't come with the jets.  I will contact The Carburetor Shop on Monday and get a kit coming from them.  Does their kit also come with the rods (are those a wear item as well)?

Thanks,
Joe

[Jay Friedman]

 Joe, I don't remember if their kit also come with the rods.  I'm not sure, but I don't think they are a wear item. 

You may know this already, but the car will run much better if you aim the accelerator pump jets by bending them carefully so that streams of fuel hit the little dots that are targets on the side of the venturi. 

BTW: a good thing to buy is a gauge that is used to set the float level. Here is one for sale on ebay that I think would worka; https://www.ebay.com/itm/265130293601?hash=item3dbaff3961:g:MPwAAOSwcshgfhZU&amdata=enc%3AAQAIAAAA8ElWf7gFI%2F6CyoxXGXFz9iMUl7%2F8UiYtKxZC0mR16sWb5ijbjx8hvFAX6HjPLbaDrLBKa70ig9ucAgh5xNAIEsP3tZkPIrgDLsYE2zLzwWozurazPG8fJaqpvoN9t3640kCrXghZ6kt1rQObe%2BDenundnfrPmVoYAJAvYcst8bb%2Fq7YLqZyLgmL6hkJ2pbXIoRCE38IV%2F8PpNAoWfCYZ7XGtnZJv2%2FezRgzrkyNUIRYTfUeuck2S7tnGd0rLZl9ODyotEyMEHkHek9Y6itjnK4b87RBkZjVfFcU%2B%2BY6iNL8yzaw9knMeisPE8f3OV%2B%2Fc7Q%3D%3D%7Ctkp%3ABk9SR_C7j6b1YQ

Also, I think The Carburetor Shop sells them.  I think you can use a drill bit that is 9/64" in diameter, too. 



Over the years I've rebuilt a Carter WCD a couple of times, but as I've gotten older I started to make mistakes as to where smaller items--springs and the like--are installed.  I now send mine out when it needs rebuilding. 

[Joe Jensen]

Thank you!

[James Landi]

Joe,

Take out the idle screws and inject compressed air into those idle channels. Ethanol fuel separation
kruds up and blocks up metered air passages, and you need to pressure clean them... Only high pressure can dislodge this accumulation. In my experience, GUM OUT doesn't
move this blockage.  Hope this helps--- if I called this correctly, the fix is immediate.   Good luck James

[Joe Jensen]

James:

Thank you for the advice.  I have ordered a rebuild kit and I will go through the carburetor again.  I will be sure to blow out all the passages with compressed air.

Thanks,
Joe

[fishnjim]

I've done the 728 and had no issues.  This is essentially the same but has a "carb starter".
You can get a rebuild manual for a few $s from Mike's Carbs or some of the other
parts vendors - online.  (Used to be free.)  Then and Now Automotive www.then-now-auto.com also
a source for parts.

Sometimes helps to get a "core" for parts that aren't available.  I've got parts given to me
as far away as NZ, so you can ask around on the parts forums, too.
Wear, corrosion, or aggressive "probing" metering holes can open or clog things up.  Let it soak
a day in NAPA carb cleaner, then wash off and blow out all the channels with compressed air
and examine/inspect all the innards.  Basically, venturi systems so the air flow and the liquid hole size
determines the delivery.  The mixture screws can also get worn and not close off adequately.  They can be
replaced.  You can carefully reseat them, too.

[bobchaney]

Joe.
I rebuilt my carter wcd using a kit from the carburetor shop a few years ago and the kit came with metering rods. And everyone is right, take it apart, let it soak and blow compressed air through EVERYTHING.