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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Carb issues maybe..?

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Old Dec 29, 2014 | 02:53 AM
  #16  
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Certainly could be.

If the hot air system isn't intact & working, the choke will be slow to open fully, at best. If it has electric assist it will be opening, but slowly & maybe not fully......costing mpg.

You mentioned black smoke on start-up, so the pull-off is at least out of adjustment.

Does the smoke continue for long?
 
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Old Dec 29, 2014 | 07:57 AM
  #17  
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Originally Posted by Connor O'Brien
You guys are unbeleivable, if I ever run into a single one of ya ill be buying you a drink for sure.

So it is hot air and tomorrow I will be checkin er out.

Now would these minor adjustments really be the culprit to significant loss in fuel economy??
I don't know if you have ever ran a leaf blower, weedeater, lawnmower, snowblower, etc. but this is no different. On those little engines some of them have the choke. If you ever ran one you know it's almost impossible to start without using the choke. And then once it starts you have to hurry up and adjust the choke or the engine will start sputtering and could stop and flood out.

Your bigger engine in your truck is the same. It needs a choke to get it started cold, and then the choke needs to be turned off in a controlled manner. Too slow it floods out, too soon and it keeps stalling.

Hopefully you can get it sorted out were it works automatically. But just as with the lawnmowers, you can get a conversion kit to convert your truck's choke to a manual choke with a cable. I would not do that right away, but if you find you can't get it working correctly that is a option for you. Then you will know what the choke is doing, you are moving it by hand from inside the cab.
 
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Old Dec 29, 2014 | 08:16 AM
  #18  
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Yes, without a doubt. If the choke is staying on it will kill the MPG.
 
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Old Dec 30, 2014 | 10:51 AM
  #19  
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Photos!

I hope you guys are still watching this thread but I ordered a carb rebuild kit, I will be rebuilding and then making the adjustments I need. I aso ordered a new o2 sensor and fuel filter.

Howver upon close inspection today I noticed something and I have no idea what it is or where it is suposed to be plugged in but I snapped some pics in case any of you know. Also if you see anything else in the pics that I should check into please let me know.









This thing in my hand ws just hangin out, no Idea what it should be hooked up to aside from maybe the lines running into the carb.








is it possible that the plug sitting on my engine should be plugged into that thing right of my fuel filter?
 
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Old Dec 30, 2014 | 11:04 AM
  #20  
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Looks like a bowl vent solenoid or canister-purge solenoid.

See that fat tube to the right of the fuel inlet on the carb? There are ~2" of rubber tube connecting the carburetor and a device... that thing in your hand looks like part of the device to which the carb is attached.

You should have a charcoal canister located low on the passenger-side frame rail in front by the radiator; this collects gasoline fumes from the tank and carb bowl and feeds them back into the engine at certain times; that solenoid is integral to that procedure.
 
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Old Dec 30, 2014 | 11:10 AM
  #21  
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Yes, it is possible. I'm not up on Ford's emissions equipment, but that looks like it might be a solenoid, and the thing to the right of the filter looks to be the vent hose from the carb. Typically that would be plumbed to the charcoal canister that's below the battery. You should have a vacuum routing diagram on the filler panel ahead of the radiator, and there's a post in the stickies with info about what all the acronyms mean so you can decode it. That part should be shown. And, if you'll post the wire colors someone here may have a schematic that shows the device.
 
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Old Dec 30, 2014 | 12:02 PM
  #22  
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good morning..

Originally Posted by Gary Lewis
Yes, it is possible. I'm not up on Ford's emissions equipment, but that looks like it might be a solenoid, and the thing to the right of the filter looks to be the vent hose from the carb. Typically that would be plumbed to the charcoal canister that's below the battery. You should have a vacuum routing diagram on the filler panel ahead of the radiator, and there's a post in the stickies with info about what all the acronyms mean so you can decode it. That part should be shown. And, if you'll post the wire colors someone here may have a schematic that shows the device.
I agree of your assessment of what that part is Gary. If I may make a comment regarding this type of information in this forum.

It seems to me at least that this basic understanding of what emissions equipment that came with the Last generation of "carbed" Ford vehicles should be a vital part of the sticky's here in this "bullnose" era Ford Forum.

It seems that many posts here are about "removing the smog junk" or "the PO had trashed the smog junk". Some basic information about what can and can't be serviced along with diagrams may be helpful?.
 
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Old Dec 30, 2014 | 12:30 PM
  #23  
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That's probably a good idea. But I don't know who would write it. Certainly no myself as I've not had one of these trucks with working emissions equipment. Hmmmm. I wonder if there are write ups elsewhere to which we could link?
 
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Old Dec 30, 2014 | 12:37 PM
  #24  
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I know I couldn't write it.

Originally Posted by Gary Lewis
That's probably a good idea. But I don't know who would write it. Certainly no myself as I've not had one of these trucks with working emissions equipment. Hmmmm. I wonder if there are write ups elsewhere to which we could link?
I've been searching all over the forums for info that would help me with the vacuum plumbing on an 83 E150 300-6 I now own. Of course a lot of the stuff that is common to the different engine family's go back even to the 70's but those forums aren't up to speed with the "LAST GEN" attempts from Ford like the 80's forum where EECIV (and EECIII) is spoken with all of it's issues.

To the "OP", I believe I have a complete assembly with that solenoid intact if I can find it if it is needed. They should be quite accessible in your local salvage yard lying on the ground when someone robbed a motor. Best wishes on your renovation. Hopefully you have good fuel tank venting as well as NO vacuum leaks.
 
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Old Dec 30, 2014 | 12:56 PM
  #25  
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Originally Posted by JohnSmith3524
It seems to me at least that this basic understanding of what emissions equipment that came with the Last generation of "carbed" Ford vehicles should be a vital part of the sticky's here in this "bullnose" era Ford Forum.

It seems that many posts here are about "removing the smog junk" or "the PO had trashed the smog junk". Some basic information about what can and can't be serviced along with diagrams may be helpful?.
Originally Posted by Gary Lewis
That's probably a good idea. But I don't know who would write it. Certainly no myself as I've not had one of these trucks with working emissions equipment. Hmmmm. I wonder if there are write ups elsewhere to which we could link?
I won't do it, don't bother.

There are many reasons why... one is that it's officially illegal to tamper with any such things as per EPA requirements.

The other is the many differences amongst configurations... California vs 49-state, low-GVWR vs high GVWR; some ran originally on Regular gas, others required unleaded; some had cats, others didn't; some had temperature and vacuum-operated controls, others were computer-controlled - for example.

Besides all that, there is lots of misinformation already on the 'net about this stuff and I don't want to help perpetuate that.. only a few of us here can provide information originating from credible and authoritative sources, and I am not big on backyard, redneck-engineered procedures & practices.
 
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Old Dec 30, 2014 | 01:00 PM
  #26  
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Well folks, you have been an unreal amount of help and if youre ever in east hants theres a cold one here for ya.
 
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Old Dec 30, 2014 | 01:20 PM
  #27  
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I get it

Originally Posted by ctubutis
I won't do it, don't bother.

There are many reasons why... one is that it's officially illegal to tamper with any such things as per EPA requirements.

The other is the many differences amongst configurations... California vs 49-state, low-GVWR vs high GVWR; some ran originally on Regular gas, others required unleaded; some had cats, others didn't; some had temperature and vacuum-operated controls, others were computer-controlled - for example.

Besides all that, there is lots of misinformation already on the 'net about this stuff and I don't want to help perpetuate that.. only a few of us here can provide information originating from credible and authoritative sources, and I am not big on backyard, redneck-engineered procedures & practices.
And there you have it folks.. Even if a guy want to return it to what it used to be you can't find out what it used to be like....

Well at least we can be thankful for WHAT we DO find.
 
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Old Dec 30, 2014 | 01:26 PM
  #28  
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Originally Posted by ctubutis
I won't do it, don't bother.

There are many reasons why... one is that it's officially illegal to tamper with any such things as per EPA requirements.

The other is the many differences amongst configurations... California vs 49-state, low-GVWR vs high GVWR; some ran originally on Regular gas, others required unleaded; some had cats, others didn't; some had temperature and vacuum-operated controls, others were computer-controlled - for example.

Besides all that, there is lots of misinformation already on the 'net about this stuff and I don't want to help perpetuate that.. only a few of us here can provide information originating from credible and authoritative sources, and I am not big on backyard, redneck-engineered procedures & practices.
The write ups I was talking about would be to explain how the various systems actually work so that people, like the OP, could maintain the system. In this case he doesn't know what that solenoid does, so it would be good to have links to such write ups.

I do agree that there were multiple systems in any given year, which could be confusing. But a basic description of how Ford did fuel system vapor recovery might suffice. Ditto the EGR system. And the AIR system. And so on. Again, not from the standpoint of how to modify them but how they work so they can be maintained or put right after the PO maimed them.
 
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Old Dec 30, 2014 | 02:23 PM
  #29  
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Last Comment of the year

Originally Posted by Gary Lewis
The write ups I was talking about would be to explain how the various systems actually work so that people, like the OP, could maintain the system. In this case he doesn't know what that solenoid does, so it would be good to have links to such write ups.

I do agree that there were multiple systems in any given year, which could be confusing. But a basic description of how Ford did fuel system vapor recovery might suffice. Ditto the EGR system. And the AIR system. And so on. Again, not from the standpoint of how to modify them but how they work so they can be maintained or put right after the PO maimed them.
SUCH an appropriate assessment...I'd rep you if I could Gary, I'm outta bullets..Have a safe New years celebration, one and ALL...
 
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Old Dec 30, 2014 | 03:08 PM
  #30  
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I talked with and clarified with Gary some... I think I misunderstood a bit, I was prefacing "how to" in front of the provided "remove the smog crap" and THAT is what I mostly referring to.

As to generic help about what certain devices are and how they operate in principle, that is not a bad thing... but don't Haynes/Chilton manuals already provide that? That stuff is already written and is more complete than anything any of us would be willing to spend the time on.

As for "putting it back to how it was when new" - that's a widely-varying topic one won't learn on any Internet-based forum like this, at least not with 100% accuracy. The dealer mechanics went to training classes to learn this stuff back then; the books can be only so much help as Ford issued TSBs over the years to alter certain OEM-provided installations in certain cases, all leading to the 700-some-odd Calibration Codes Ford came up with.

If one is really interested in doing that, then probably the best thing to do is go purchase one of the original factory shop manuals dealing only with emissions stuff Ford had published for each specific year; they're over an inch thick and have all sorts of pictures and helpful diagnostic instructions and whatnot.
 
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