LOL ok so i got around to finally replaceing that air filter and it helped a bunch. But now since its not my regular vehicle i got to run it and drive it for 30 minutes the other day and to my suprise after shes been warmed up she is blowing alittle blackish smoke. Doesnt get any worse or better when you hit the gas but its just kinda constant and only after she warms up. Any direction i need to be looking.

Ben

 

sounds like maybe the choke isnt opening all the way

 

No ive never even touched the carb. I wouldnt mind diveing into this but i live in an apartment and i think they might not like me not being able to move it around. And ive never rebuilt a carb before so i dont know how long it might take a newbe.

Id also like to add that the gas in this truck might not be exactly old but its not current. As ive stated the previous owner used it to haul trash and didnt drive it more then a couple days out of the year. Is there any addiditive i could add or should i just add some newer gas. I start it every other day wheather im useing it or not.

 

add a friend and a 6,12,24 or 30 pack of your beverage of choice and its a easy rebuild

 

Could be the stuck choke. Check the last thing you worked on the air cleaner. Be sure nothing is catching the linkage. Hose, gasket, etc. A change in carb function could be a leaking float valve or heavy float. By all means get the old gas out of the tank. Use it to wash parts or something. Use only premium gas in a vehicle that sits a lot. Always keep the tank full and locked I found out last summer.

 

I dont think it can be anything new from the air cleaner. This is something i believe has always been like. Maybe because he didnt use it often the gas sat in the carb and gumed or threw off things. Oh and also i ment to say i dont think he drove it more then a couple times a month, not a year. I would like to do this myself but i have someone else who might be able to do the job for me. I could probally take it on and off myself but i would need someone else to help me tune the old girl.

 

I would get rid of the bad gas first, you can put some Stabil in the gas that might make it run a little better or if you can syphon out as much of the bad stuff you can and drive it till its almost empty. A rebuild on the carb and getting the right air fuel mixture would prolly help alot. You could also try taking the carb off and spraying alot of carb cleaner through it, if the choke is sticking that might free it up. If you do all that and its still blowing black smoke, not really sure what to do.

 

something else it does. It starts every time but when i say cold blooded it you burp the gas shell choke out. As far its an automatic choke because theres no pull **** so i dont know what woudl make that not work or what i coud check to make sure it worked. When i start it up there is no fast idle.

 

No fast idle is a sticky linkage or linkage adjustment.

 

No fast idle on start up?

Look between the choke and the carb, there is a white plastic lever there, which is the fast idle cam.

It may look like it's all in one piece, but if you wiggle it a bit, you will prolly see that it has snapped in two...a very common occurence.

Your profile says you have a 1975.

D5AZ9597A .. Fast Idle Cam (Motorcraft CM2105)
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PLEASE......when asking questions, list all the pertinent info: Year, Model, Series and Engine Size.

Ford changed the 2V carb in 1975. Very few parts are the same as previous years, including the carburetor overhaul kit, fast idle cam, choke assembly, yadda yadda yadda.

 

sorry the motor is a 390 4v from a 75f150 explorer xlt

 

What I want for you is for you to carefully take that carburetor off and take
it apart and clean it out inside and put it back together. :)

It ain't rocket science. ;)

When you get it back together and find out "that ain't it" or "it fixed it right
up" will -empower- you either way. The carb-kit will have an exploded view
and instructions that anyone that -wants to- can follow.

There was a "first time" for all of us that are into carburetors. :)
Your first time will be with a really cool old 4 barrel off a 390FE! :)
Mine was a Solex off a '63 convertible VW bug. :/

Yours is going to to be way-cooler! ;)

Just take it apart in a place so when you lose the little pieces, they won't
be hard to re-find. ;)

Spaying carburetor cleaner though the passages etc will be fun unless you
don't wear glasses. LOL :) That's the "best tool" is spray carb-cleaner and
another one is a small natural bristle (paint) brush with the bristles cut to
5/8" long or so. You'll need screwdrivers that fit the screws and long nose
pliers.

Anyone got any other suggestions for tools? :)

Have fun with it and your vehicle won't be down so long anyone's going to care.

Fiddle with the choke etc and figure out how it all works.

http://www.secondchancegarage.com/public/94.cfm
Heck, he even removes the throttle plates from the shaft...
You won't need to do that.

Anybody got a better URL? :)

Alvin in AZ
ps- I like to spray silicone on (or smear with silicone grease) my carb gaskets
to keep them from sticking, making them re-usable over and over, since I like
to experiment with jetting and other modifications. :)
pps- carburetors are cool! :)

 

I smear vasoline on my gaskets. Before, I have had them stick within 1-2 days of putting the carb back in service. I just had to tinker, the gasket stuck and ripped, $20 later I was back in buisness, with a partially used gasket kit sitting in the toolbox. Now I get more time before sticking, typically enough time to tinker and forget about messing with it.