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Old 10-27-2009, 09:03 PM
TheDesertRat TheDesertRat is offline
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Cal. Smog Diagram Needed for 460

In another old thread I resurrected, Mil1on posted up a smog diagram for a Ca. 460 which you will see below. However, it is low resolution and when I blow it up, I can't read it. Anybody have a higher resolution picture of this diagram they can post?

Click the image to open in full size.
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Old 10-28-2009, 02:15 PM
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Anybody? Anybody? Bueller?
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Old 10-28-2009, 03:48 PM
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I was reading your other post, with the other vacum diagram, and by the calibration numbers, that one seems to be for a 79 460 on light duty trucks, yours is a 78 F150 right, with a swapped in 460?

If you can give me more information, I can try to get you the right vacum schematic, I have copies of some of the old Mitchell shop manuals, which is where I think these diagrams came from. . .
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Old 10-28-2009, 04:17 PM
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DL1221 you wouldnt happen to have the diagram for a 77 with a 460 and 4350 carb and egr, if so it would be greatly appreciated.Im not trying to hijack but if i can get the info without starting a new thread.
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Old 10-28-2009, 04:38 PM
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Quote:
Originally Posted by abert View Post
DL1221 you wouldnt happen to have the diagram for a 77 with a 460 and 4350 carb and egr, if so it would be greatly appreciated.Im not trying to hijack but if i can get the info without starting a new thread.
No problem, I can look later on tonight.

What truck do you have, F150, 250, or 350? And is it for a California truck or a Federal (49-state) truck?

Any chance that the original valve covers are still there, with the plastic calibration tag on them? If you had the engine calibration number, that would be a big help.
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Old 10-28-2009, 05:54 PM
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DL1221 The truck is a f250 built and sold in california. the valve covers arent original so thats no help, if you need any more info I'll be glad to post it
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Old 10-28-2009, 07:10 PM
TheDesertRat TheDesertRat is offline
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Quote:
Originally Posted by DL1221 View Post
I was reading your other post, with the other vacum diagram, and by the calibration numbers, that one seems to be for a 79 460 on light duty trucks, yours is a 78 F150 right, with a swapped in 460?

If you can give me more information, I can try to get you the right vacum schematic, I have copies of some of the old Mitchell shop manuals, which is where I think these diagrams came from. . .
Yes, I have a 78 F150 that came with a 351 I believe but now has a 460 swapped into it. I am assuming that I will have to comply with a 78 F250 460 smog setup in order to get a referee to approve it. I believe the diagram I have is correct, just too small to read well but I welcome all information.
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Old 10-28-2009, 10:47 PM
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Quote:
Originally Posted by abert View Post
DL1221 The truck is a f250 built and sold in california. the valve covers arent original so thats no help, if you need any more info I'll be glad to post it
OK, according to the manual, for a 1977 Ford truck with heavy duty (GVW is over 6000lbs) and California emissions, your 460 should have the following emissions equiptment:

- PVC Valve
- Thermostatic Air Cleaner
- Evaporative Emission Control (charcoal canister)
- EGR Valve

I do have a vacum diagriam, it's kind of hard to read, but if you PM me, I can scan it and email it to you.
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Old 10-28-2009, 10:56 PM
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I am not an expert but I will venture a guess that your 460s emissions stuff will have to comply with the more stringent smog equipment that the half tons usually had. If you do it correctly and are lucky, the smog guys will never know you put a 460 in, and thus wont make you go to a referee. ONe time a crafty smog tech sorta erased the GVW on the door jamb to make it fly according to what he has to look for.
If your vacuum lines look eXactly like what is shown and everything is easy to follow, chances are the smog guy wont look twice at anything else. Just make sure your gas caps are of the non locking variety and that if you only have one fuel tank, your hoses are tight and not split. aside from having a well tuned motor, you should be gravy.
By the way, Autozone.com has the vacuum diagrams for your own convienience.

Once again...

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.
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Old 10-28-2009, 11:06 PM
DL1221 DL1221 is offline
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Quote:
Originally Posted by TheDesertRat View Post
Yes, I have a 78 F150 that came with a 351 I believe but now has a 460 swapped into it. I am assuming that I will have to comply with a 78 F250 460 smog setup in order to get a referee to approve it. I believe the diagram I have is correct, just too small to read well but I welcome all information.
For a 1978 F150-250 with light duty emissions (GVW under 8500lbs), and California emissions, your truck's 460 should have the following emissions equipment:

- PCV = PCV valve
- TAC = Thermostatic Air Cleaner (yes they do have a hot air riser)
- AIS = Air Injection System (air pump)
- EVAP = Evaporative Emission Control (charcoal canister)
- OC = Catalytic Converter
- EGR = Exhaust Gas Recirculation (EGR Valve)
- SPK = Spark Control
- EGR-BPS = EGR Back-Pressure Sensor
- VTK = Vacuum Throttle Kicker

In case you're interested, your factory calibration number for a F150-250, 460 V8, Auto Trans, with California Emissions, should be: 8-66U RO.

Again, I do have a vacuum diagram, but it's very hard to read, PM me and I can email it to you.
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Old 10-29-2009, 12:56 AM
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Interesting...

That scan of that smog book shows the '78 302 should have more emissions than what I've got. I only have the PCV and 3 or 4 vacuum hoses and a weird looking electrical/vacuum solenoid that i don't know what it does. No EGR or AIR or anything like that.
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Old 10-29-2009, 06:50 AM
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Chad (jermafenser): 1973/79 Ford Light Truck Parts Catalog =

1978/79 460 F150/350 & Econoline = EGR: Illustration Section: 94.1 / Page 33.

Parts and hose routings are shown.
----------------------------------
There is no truck parts catalog pic of a 460 T/E system (smog pump) parts/hose routing.

But....there is one in the 1973/79 Passenger Car Parts Catalog:

1978 LTD 460: Illustration Section 94 / Page 8. This pic will most likely will be the same as 1978/79 F150/350 460.

Does anyone have this catalog on a CD that they can scan and post this illustration?
----------------------------------------------------------------------------------
Both these catalogs (and more) are available on CD's from hipoparts.com for about 25 bucks each.

Fellow members: If y'all say 'who needs this car parts catalog?' Let me be the first to inform y'all that this is where BRONCO parts are listed.

1966/72 Bronco parts (1965/72 Passenger Car Parts Catalog) & 1973/79 Bronco parts are in the CAR parts catalogs! Not listed in the truck parts catalogs...until 1980.
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Old 10-29-2009, 08:11 AM
TheDesertRat TheDesertRat is offline
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I'm good with all those except I was hoping I wouldn't need a cat. What exactly is a TAC? Did the exhaust manifolds have the air tubes attached to them like my 76 Blazer had?
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Old 10-29-2009, 08:28 AM
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Quote:
Originally Posted by TheDesertRat View Post
I'm good with all those except I was hoping I wouldn't need a cat. What exactly is a TAC? Did the exhaust manifolds have the air tubes attached to them like my 76 Blazer had?
TAC = Thermostatic Air Cleaner. It's just an air cleaner with an air riser attached to the left exhaust manifold, and a vacuum operated temperature valve to control the temperature of the air the engine receives. If you have headers, you should be able to buy a heat riser that clamps on to one of your tubes.

Yup, cats were mandatory in California, my truck(s) have them.

Now for the air pump tubes on a 460, the tubes were routed to holes in the back of the cylinder heads. Very hard to get to with the engine in the truck. If your engine does not have them, or if your heads don't have the holes to accept the air tubes, you may have an issue.

Got your PM, I'll send you the vacuum diagram tonight, when I get home.

Hope this helps.
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Old 10-29-2009, 08:34 AM
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Quote:
Originally Posted by TheDesertRat View Post
Yes, I have a 78 F150 that came with a 351 I believe but now has a 460 swapped into it. I am assuming that I will have to comply with a 78 F250 460 smog setup in order to get a referee to approve it. I believe the diagram I have is correct, just too small to read well but I welcome all information.
When it comes to the CA Air Resources Board and the DMV, do not assume anything.

Your truck has to comply with a 460 in an F150, not an F250. This means you will need a cat.

You could order a 460 in 1973/76 F100's, 1975/79 F150's, but...

The problem you may encounter is: You could not get a 460 engine in a new 1978/79 F150 in CA....it was not available.

There is no longer any waiver if the parts are obsolete like there once was.

CA says: Fix it...or park it. Cuz if ALL the smog jazz isn't on there...as original...and in working order, the vehicle cannot be registered.

TAC: There is a pre-heat choke tube that fits into the intake manifold...the puppy usually rusts out > >

C8VY9C869A / Thermostatic Choke Heater Tube / 4 1/2" formed length, w/formed tube & square flange on one end / Obsolete

SAHARA MOTORS in Delta UT has ONE = 435-864-4456.

CAIN FORD in Cornelia GA has ONE = 706-778-2121.

PEROGIE ENTERPRISES in Highstown NJ has ONE = 609-448-1684.

No other Ford Dealer or obsolete parts vendor has any.

This tube can be found in 1968/78 429/460 passenger cars, 1973/79 F100/350 460 & 1975/79 Econoline 460.
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Old 10-29-2009, 08:34 AM
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