Carburetor feedback needed

[dirtymac]

That was why I mentioned it. If the rebuilder did not grind it off, the Ford PN was stamped on the side of the base next to the left front mounting bolt. There is also a cast in venturii size on that side of the float bowl.

I would expect the size to be maybe 1.21-1.23 as that was what the 390 two barrels were, the biggest factory I believe was 1.33 used on the 429 two barrel engine.

I have a couple of images that, I think, show off the front left mounting bolt area and the venturi stamp better.

I am concerned about the venturi size for this engine, because I am pretty certain this stamp reads 1.08. Maybe you can interpret the stamp better.

As for the front left bolt area, I think there is a partial 64 but that's all I have been able to find.

[85lebaront2]

I have a couple of images that, I think, show off the front left mounting bolt area and the venturi stamp better.

I am concerned about the venturi size for this engine, because I am pretty certain this stamp reads 1.08. Maybe you can interpret the stamp better.

As for the front left bolt area, I think there is a partial 64 but that's all I have been able to find.

Ok. 1.08 venturii size = 302 carburetor. Partial on L Front flange is EA which would be the last part of the PN, example could be D1TF-9510-EA where the 9510 (basic number for carburetors) is understood.

Sizes to approximate CFM:

0.98 = 190 CFM

1.01 = 240 CFM

1.02 = 245 CFM

1.08 = 287 CFM

1.14 = 300 CFM

1.21 = 351 CFM

1.23 = 356 CFM

1.33 = 424 CFM

As you can see, even working perfectly it is not an adequate size carburetor for your 400 engine. The other gem is the screw holding the throttle lever on the shaft (wonder if it was one of my old cores?).

 

[ArdWrknTrk]

Ok. 1.08 venturii size = 302 carburetor. Partial on L Front flange is EA which would be the last part of the PN, example could be D1TF-9510-EA where the 9510 (basic number for carburetors) is understood.

Sizes to approximate CFM:

0.98 = 190 CFM

1.01 = 240 CFM

1.02 = 245 CFM

1.08 = 287 CFM

1.14 = 300 CFM

1.21 = 351 CFM

1.23 = 356 CFM

1.33 = 424 CFM

As you can see, even working perfectly it is not an adequate size carburetor for your 400 engine. The other gem is the screw holding the throttle lever on the shaft (wonder if it was one of my old cores?).

Bill,

Can you elaborate on the different vacuum levels that 2 & 4V carburetors are rated at?

2V @ 3" and 4V 1.5" depression....

[85lebaront2]

Bill,

Can you elaborate on the different vacuum levels that 2 & 4V carburetors are rated at?

2V @ 3" and 4V 1.5" depression....

Jim, unfortunately neither is a real good test, Weber rates theirs at I think it was 0.5" depression so their flow rates can be way higher if tested like most other carburetors.

[ArdWrknTrk]

Jim, unfortunately neither is a real good test, Weber rates theirs at I think it was 0.5" depression so their flow rates can be way higher if tested like most other carburetors.

I'm just trying to point out that there's no direct comparison between 2 & 4V cfm ratings.

[dirtymac]

Ok. 1.08 venturii size = 302 carburetor. Partial on L Front flange is EA which would be the last part of the PN, example could be D1TF-9510-EA where the 9510 (basic number for carburetors) is understood.

Sizes to approximate CFM:

0.98 = 190 CFM

1.01 = 240 CFM

1.02 = 245 CFM

1.08 = 287 CFM

1.14 = 300 CFM

1.21 = 351 CFM

1.23 = 356 CFM

1.33 = 424 CFM

As you can see, even working perfectly it is not an adequate size carburetor for your 400 engine. The other gem is the screw holding the throttle lever on the shaft (wonder if it was one of my old cores?).

Yeah, I wish I knew more about the original issue with the truck. I received a bunch of random receipts. The carburetor was originally replaced along with the main fuel take, sending unit, and fuel pump. Then, several years later, the carburetor was replaced again. Also, at some point, the smog was removed and the EGR stuff was plugged off.

So the venturi are undersized. The throttle is sticking. I haven't found any vacuum leaks. Between those things, I don't think it is worth trying to rebuild this carburetor.

At some point, I want to consider electronic throttle body upgrade. That is further down the road once I have sorted through other pressing issues. In the mean time, I think a carburetor replacement/upgrade is in order. I plan to drive this truck daily.

I would love to stick with the a 2150 but I don't want to get stuck with a bad rebuild. I know there are, let's call them reproduction, versions out there. I know there are also 4 barrel upgrades I could do, but I don't think those are necessary.

If anyone has recommendations or advice around this path, I'm all ears.

[85lebaront2]

Yeah, I wish I knew more about the original issue with the truck. I received a bunch of random receipts. The carburetor was originally replaced along with the main fuel take, sending unit, and fuel pump. Then, several years later, the carburetor was replaced again. Also, at some point, the smog was removed and the EGR stuff was plugged off.

So the venturi are undersized. The throttle is sticking. I haven't found any vacuum leaks. Between those things, I don't think it is worth trying to rebuild this carburetor.

At some point, I want to consider electronic throttle body upgrade. That is further down the road once I have sorted through other pressing issues. In the mean time, I think a carburetor replacement/upgrade is in order. I plan to drive this truck daily.

I would love to stick with the a 2150 but I don't want to get stuck with a bad rebuild. I know there are, let's call them reproduction, versions out there. I know there are also 4 barrel upgrades I could do, but I don't think those are necessary.

If anyone has recommendations or advice around this path, I'm all ears.

I have seen some decent reviews and some bad ones on the Chinese knock-offs from Amazon. When right they are apparently an excellent replacement, but I can't determine the venturii size. They are only listed as fitting up to 351 ci though.

I need to make a run to my favorite junkyard, probably next week as traffic is going to be worse than usual on I 64 across the James river and into and out of Hampton due to a scheduled vist by Kamala Harris to Hampton University Thursday. I can ask if he's got some carburetors stashed in some of his buldings and if so maybe find you a 1.21 or larger rebuildable 2150 (Maybe a 1.33?).

[dirtymac]

I have seen some decent reviews and some bad ones on the Chinese knock-offs from Amazon. When right they are apparently an excellent replacement, but I can't determine the venturii size. They are only listed as fitting up to 351 ci though.

I need to make a run to my favorite junkyard, probably next week as traffic is going to be worse than usual on I 64 across the James river and into and out of Hampton due to a scheduled vist by Kamala Harris to Hampton University Thursday. I can ask if he's got some carburetors stashed in some of his buldings and if so maybe find you a 1.21 or larger rebuildable 2150 (Maybe a 1.33?).

I would appreciate that. My local junkyard has a few similar vehicles but I don't know that I could tell what was worth pulling.

I have found some at United Automotive Remanufacturing and National Carburetors. I'm not sure of the quality or if they have the right size venturi.

I would definitely like to get something that I can easily identify in case I need parts in the future.

[Gary Lewis]

I would appreciate that. My local junkyard has a few similar vehicles but I don't know that I could tell what was worth pulling.

I have found some at United Automotive Remanufacturing and National Carburetors. I'm not sure of the quality or if they have the right size venturi.

I would definitely like to get something that I can easily identify in case I need parts in the future.

This may not help, but here's what I've found.

First, there are only two calibration parts list numbers for an 82 truck w/a 400 & a C6 not in CA: 53 and 240

And here are parts of those parts lists showing the correct carb #'s. It isn't likely you'll find those, but just in case.

[85lebaront2]

I would appreciate that. My local junkyard has a few similar vehicles but I don't know that I could tell what was worth pulling.

I have found some at United Automotive Remanufacturing and National Carburetors. I'm not sure of the quality or if they have the right size venturi.

I would definitely like to get something that I can easily identify in case I need parts in the future.

As far as a rebuild kit, other than 1957 models one size fit all CT499D from Ford, 902-857D from Carter, 77-857D from Standard I think was the 3rd one I stocked (needed that many sources to keep up with the demand). Numbers may be higher up the alphabet by now.