Hey guys... Still fighting with my truck and am looking for a carb rebuild kit. I bought a new carb to intake spacer as well as a spacer to intake. The gasket has a hole in it for something, but the new gaskets hole doesn't line up. Does anyone have any idea why? Here is the gasket that came off.

 

I dunno, but isn't Mike's Carburetor's out in Washington? Write and see if he can dig up the the right kit. By the way, could probably reuse that. Looks OK, as long as they aren't all torn up.

 

I put it back on because the hole on the new one covered about half of the hole in the intake. I'm having a lot of hunting issues with this truck at low RPM. It runs great above 1500 RPM, anything below and the hunting will eventually kill the engine. I've been trying to find vacuum leaks.

I was able to get the vacuum to about 15 at idle. It fluctuates 1-2 at an idle of about 1200. If I lower the idle, the hunting gets worse and worse until it dies.

You don't think this gasket could be an issue?

 

I dunno enough about later models with all the modern improvements, can't help you there. Is that for EGR? Seems to me though, a vacuum leak would result only in an overall lower vacuum, and steady, versus fluctuate as you describe.

 

Post up a picture of this spacer plate.
I am guessing that plate is the EGR as is that gasket you pictured.
Dave - - - -

 

Which 351W intake manifold does your truck have, aluminum or cast iron?

 

It's a cast iron intake, and I've determined (hopefully) that it's a 2150. It has the choke pulldown/dashpot, the heat activated choke assembly that comes off the manifold, but doesn't have any tags or markings on the carb.

What carb was supposed to come on this truck? I'm pretty certain the engine is a replacement, the transmission is a hell of a lot older than the truck (thanks NumberDummy for helping figure that out).

It looks like I forgot to take a picture while I had it all tore apart. I removed the EGR valve completely and bolted down a plate in its place as the valve was failed and blocked off by the PO. I wouldn't be surprised if there was more EGR systems elsewhere....

 

E3AZ-9447-A .. THIN Gasket-EGR Spacer Plate to Intake Manifold (Motorcraft CG-544) / Obsolete

1983/85 F100/350 & Bronco 302/351W with cast iron 2V intake manifold.
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E5HZ-9C477-A (replaced D7FZ-9C477-A) .. THICK Gasket-Carburetor to EGR Spacer Plate (Motorcraft CG-539-A) / Obsolete

1980/85 E/F100/350 & Bronco 302/351W with cast iron 2V intake manifold.

1977/79 LTD II (not an LTD!)/Granada/Monarch/Versailles/Thunderbird/Cougar/Ranchero 302/351W // 1977/80 Mustang/Pinto/Bobcat 2.8L V6 // 1978/79 Fairmont/Zephyr 302.

1979/80 LTD/Grand Marquis 302/351W w/cast iron intake manifold // 1980 Granada/Monarch/Versailles 302 // 1980/81 Thunderbird/Cougar 302 w/cast iron intake manifold.

Both gaskets available from auto parts stores.

 

As Bill pointed out and as I thought that spacer plate is the EGR and you are showing 1 of 2 gaskets, looks to be the thick one?
If you are not using the EGR then if you only can get a gasket that blocks it off so what?
As long as it seals the carb & EGR ports you are good to go in my book.
Dave ----

 

Ohh ok, so since I'm not using the EGR valve, I can just block off the port with the new carb/spacer gasket?

 

I would say so.
Dave - - - -