Truck is 1984 F-150 (302). The base of the carb reads C5ZF A - Tag reads Fred Jones Mfg. (I read on him) C5ZZ H

 

That is an air flow diverter for the manifold. If I remember correctly, the vacuum line connects with a "Y" to the exhaust heat riser. The heat riser in on the driver side after the header. It is for emmisions, but I am not positive what it actually accomplishes.

 

C5ZZ-9510-H .. 2100 series 2V Auto-Lite Carburetor / ID tag number C5ZF-A = 1965 Fairlane/Falcon/Mustang 289.

Fred Jones - FoMoCo Authorized Remanufacturer - Located in the former Ford assembly plant in Oklahoma City.

Jones was also a longtime Ford, Lincoln/Mercury and a for a short time, an Edsel dealer. His dealerships were located throughout OK

 

IIRC it's not for emissions but to divert exhaust gases below the carb on cold engines for faster warm-up.

 

Thanks for the replies.. This is what it looked when I bought the truck.. wasn't sure if he had it hooked up correctly (see where the tube broke). So I can just plug off the carb side and be done with it?

 

Depends on the climate where you live; if you're in Florida then sure, gofer it; not so much in South Dakota or Alaska....

 

West TN - Today's low will be like 9 - This is not the norm but we do shiver in the 20's sometimes. So is the picture correct? I just need to get a new hose to go from A to B per se? Sorry for crazy questions but I just don't know where to begin. I'll post more info in my signature once I reach my 5 post
Again, thanks for your time.

 

Maybe Gary or Dave have diagrams and can explain it better and faster than I can.... I shall ping Gary....

 

Gary doesn't really know as he's not seen one on that side of the intake. Nor does he have diagrams. The ones I've seen are on 351HO's and are on the driver's side of the manifold. In both cases they are sitting in the exhaust crossover, which is a passage for the exhaust from one side of the engine to the other. The intent is to, as Chris said, warm up the incoming air/fuel mix to get good atomization and therefore economy and drivability.

The ones on the driver's side were vacuum controlled via some complex valving to heat the fuel/air mix only under certain conditions. But that one appears to have been connected to filtered air, which makes no sense to me. I'd guess that it wasn't originally connected that way and that someone has jury-rigged it. However, you won't hurt anything by plugging it off. If the truck doesn't run right replace it and see if it helps, although I can't see how it could.

 

Maybe this is it in this diagram? This diagram is for a 84 351w with a automatic. I am going to guess it's "Heat VLV". Looks like it's controlled by a water temperature vacuum valve. The bottom line is the vacuum supply. The middle line is vacuum to the valve, I am not sure what the other line is doing on the top.

 

Correction; The more I look at it, the top line might be the vacuum supply with some checks in there, the middle line the valve, and the bottom line might be a "no pressure" exhaust vent for the valve. The bottom line would let air "in" to the heat valve when the spring in the valve was pushing it shut(because the vacuum was gone to the valve).

 

That carb sure looks uncluttered! My 84/302 has about 35 dozen vacuum lines crossing each other, along with other sensors, senders, etc.

 

Thanks everyone ... I believe the truck had an original 6 in it to start with. So who knows about this 302 and carb setup - The carb seems to be an "add-on" per se due to a #15 written on it (like it was on a self for resale). Also the truck looks Red at some point. VIN# <!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <woNotPromoteQF/> <w:LidThemeOther>EN-US</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>X-NONE</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <wontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <wontVertAlignCellWithSp/> <wontBreakConstrainedForcedTables/> <wontVertAlignInTxbx/> <w:Word11KerningPairs/> <w:CachedColBalance/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><![endif]-->2FTCR15Y3ECB22335 - I'll take a bunch of pictures and add them to my photos. My daughter started driving so I will give her the 04 F150 to use and I just wanted this for an around town truck for me.

 

The C5ZF-A carb is a 2100 series Auto-Lite 2V from a 1965 Fairlane/Falcon/Mustang 289.

It's possible that the engine from one of these cars was also swapped in...as a 289 & 302 (not available in cars till 1968, in F100's until 1969)...look identical.

2FT = FoMoCo of Canada Ltd. - Ford Truck - Complete Vehicle.

C = Class C Hydraulic Brakes, 4,001-5,000 lbs. Gross Vehicle Weight Rating.

R15 = This SERIES code cannot be correct, as it's for a Ranger 4WD Super Cab.

Y = 300 1V I-6.

3 = Check digit, FoMoCo use only.

E = 1984.

C = Oakville Ontario Canada Truck Assembly Plant.

B22335 = 1984 Numerical Sequence of Assembly.

 

Thanks on the R15 info .. might need to get this checked since I registered it with theses numbers .... The VIN tag is almost gone .. very hard to read .. Hopefully Insurance just wrote the numbers down wrong .. ... I post a pic of the VIN tag .. it's almost dry rotted away .. and again who ever painted it painted over or took off any label (inside driver door area)