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Topic: Carburetor WCFB 4-Barrel

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Ross

Re: Carburetor WCFB 4-Barrel

#11

Home away from home

Some cars with the WCFB had holes drilled in the manifold to let heat from the hotbox on the manifold up onto the base of the carb to prevent carb icing on cold foggy mornings. You don't have it, you don't need it, you don't want extra heat especially with today's volatile fuels. So you can face the gasket any way that you wish. If your manifold does have those holes in it, orient the spacer and gasket to block them.

Posted on: Today 7:07

53 Cavalier

Re: Carburetor WCFB 4-Barrel

#12

Home away from home

Quote:

Packard Don wrote:

Incidentally, your workbench is FAR to neat and tidy. That's just not right!

Don't worry, there's penty of mess in my garage! LOL But one of my high school shop teacher's motos was "A place for everything and everything in it's place". I spent all the time I could there!

Quote:

Packard Don wrote:
Maybe while you're at it you can check the vacuum check valve for the power brakes as it's easily accessible without thee carburetor in the way. You don't necessarily have to even remove it. Just remove its hose, put on a shorter clean one and try to blow and suck (carefully!) through it. You should be able to blow easily but not suck at all. If any air comes through while sucking, it's a problem so you'll have to take it apart for cleaning - if it comes apart. I don't recall if it does or not.

On this model of carburetor, I recall seeing a service note of some sort for adding a short tube in one of the holes. Something to do with gas sloshing in on certain turns and causing a stall. I couldn't readily locate the Service Counselor with the tidbit but I did find this section on carburetor servicing which might help. It's volume 27, starting on page 1.

Good idea to check the check valve, I may just pop it off and soak it in parts cleaner to make sure it's good and clean regardless. Looks like it should come off without too much trouble.

Click to see original Image in a new window

That's a good Servcie Counselor, I'll give it a going over and see how it compares to the service manual and the instructions that come with the carburetor and the YouTube video from Mike's. I'm certainly not short on information! LOL

I recall another Service Counselor that I read last year where they suggested the choke thermostat should not be set to 1 1/2 points rich, but at 0. I've had mine set at 0 and it seems to be good. Richer may be better for winter starts, but not many of those happening!

Posted on: Today 9:34

53 Cavalier

Re: Carburetor WCFB 4-Barrel

#13

Home away from home

Quote:

Guscha wrote:
Quote:
Accelertor pump is toast, which I suspected it might be. The new one has a spring on it, is this missing off the old one?

To me the two look different. The old one is equipped with probably leather pump cup, the new one for sure with fluorelastomer pump cup.

Quote:
...But I want to get seals, pump, etc in that are compatiable with modern fuels...

Then you are probably on the right path. Fluorelastomer is alcohol/ethanol resistant. Please take a look at -> this overview. You will need a little patience as the linked page takes a few seconds to load.

Quote:
"...Any words of wisdom as I tackle this project?..."

You should consider a rebuild kit.

Accelertaor pumps are the same, but different.

Thanks for that link, lots of parts available for these carbs still. I think the rebuild kit I have includes everything I need, but what do I know............this is a new adventure for me!

Posted on: Today 9:44

53 Cavalier

Re: Carburetor WCFB 4-Barrel

#14

Home away from home

Quote:

Ross wrote:
Some cars with the WCFB had holes drilled in the manifold to let heat from the hotbox on the manifold up onto the base of the carb to prevent carb icing on cold foggy mornings. You don't have it, you don't need it, you don't want extra heat especially with today's volatile fuels. So you can face the gasket any way that you wish. If your manifold does have those holes in it, orient the spacer and gasket to block them.

Perfect! Thanks for the explination, it's good to know what these holes were for! And yes, the less heat the carb gets the better!

Posted on: Today 9:49

53 Cavalier

Re: Carburetor WCFB 4-Barrel

#15

Home away from home

Another question...

Is the vent cap supposed to have any type of seal, or is it just metal on metal? If there was a seal, it's not their any more, and I don't anything in my rebuild kit that would fit there.

Posted on: Today 9:52

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