It's possible, but unlikely. Check the pump pressure and volume to be sure.

At this point I'd suspect the float (35 years old?) or the needle/seat is faulty. I've had "part time" needle and seats that hang up from carb kits cause similar issues.

 

rust in the tank can cause this

 

if that would be the case, he would had found it already in the fuel filter, as he opened it.
I am still convinced that the carburator is clogged up from old ethanol gas due to long sitting time.

 

not if the rust is in the tank and clogging the inlet

 

if that would be the case, there would not be enough gasoline and you would have a vacuum at the pull side of the pump.
the floater and the needle would be open and the carburator would be empty.
but this is easy to check by checking the fuel pressure.
Don't get me wrong- I know that rust at old vehicle is a problem- but how the issue is discribed, it looks more like a clogged up carburator.
there are repair kits available, where all vents, the floater and floater needle incl. all gaskets are included.
Dynojet has even a upgrade kit for better performance, which I always used.

Chris

 

Where do you find these parts?
I checked Rock auto and they only seem to list Holley parts. Sometimes I see Carter described as BBD. But no where can I find BBD listed on this carb. only 'CARTER 0-2681".

Also, I looked at the parts layout of a rebuild kit and I don't see any floats in there. If I get into this I don't want to put it together with
out a new float.

Where is the return line? I confess my ignorance, I didn't think a return line was usual. Mostly I mess with old English cars and they don't have return lines. I thought that was something you only got with FI and high volume pumps.

PS: Before I let the mechanic do this, I copied the number off the little metal tag and went to Autozone. They said they had no way to look up that number. From the old days I always thought that the numbers on the little tag were the be all end all of carb purchasing.

 

Its generally called a Carter BBD, I found rebuilt Carters for your vehicle at Rockauto.com for $142 + core.

These videos may be helpful.

 

Come on guys.
Rusty tanks, degraded fuel lines, bad pumps?
All would cause no fuel. Hes overfueling.

Ain't no return line on a carberated engine with mechanical fuel pump. My gawd.

You see gas pouring into your engine. Gee. Sounds like a sticky needle or sunk float.

All great advice. Swap everything.

 

yeah...

I remembered too, that the carburator has no return line- mixed presence wiht past...well- I'm almost 50 and there it can be that some things mixing up in the brain...- but I thought, he will find out, when there is just one line to the carburator.

we just tried to encourage him to take the carburator apart and change everything- great videos btw. and i liked the discussion.

thanks for bringing it to the base language.


Chris

 

I agree 100%, good call, except for one minor thing...dirt and or rust in the system could be what's getting into the carb and preventing the needle from sealing closed. So it is prudent to make sure the fuel system is clean.