Topic: 65 Running Changes - Draft Tube Usage/Application Discussion

[Hipo giddyup]

My car has a DSO of 26, Washington D.C., and was sold new at King's Ford in Essex Maryland around July 4th 1964. I am the second owner and had the original title in hand when I went to get it titled in my name. It has the date correct block, heads, intake, etc.. So it is likely that the timing cover, valve covers, and downdraft tube are original to the car. I never understood why some cars during this time had the down draft tube and others didn't. 

[J_Speegle]

My car has a DSO of 26, Washington D.C., and was sold new at King's Ford in Essex Maryland around July 4th 1964. I am the second owner and had the original title in hand when I went to get it titled in my name. It has the date correct block, heads, intake, etc.. So it is likely that the timing cover, valve covers, and downdraft tube are original to the car. I never understood why some cars during this time had the down draft tube and others didn't. 

Do you know the DSO of the other car your comparing yours too? There were a couple north eastern states and Calif that had higher standards even in 64 that related to emission from my understanding. That and running changes in the early part of production are likely the reason for the differences

[Hipo giddyup]

No other DSO's I can confirm at the moment, but the example in this thread (AOW Mustang) sounds as if it was from Philadelphia (DSO 17 I believe?) and does not have the down draft set up. Maybe other 64' members will chime in with their DSO and configurations?

With running changes I tend to wonder if down draft set-ups were being phased out and "used up" on the Mustang production line as well as others, Fairlane, etc..?

[DM_1964]

Maybe other 64' members will chime in with their DSO and configurations?

Mine is a LA (DSO 71) car that didn't have the draft tube but the manifold wasn't original to the car so not 100%, the timing over is original and doesn't have  the oil filler tube.
Would like to know if anyone else with LA D code car has a down tube?
I sourced a correct date coded manifold and there's no attachment for it at the rear of the intake.

[J_Speegle]

Mine is a LA (DSO 71) car that didn't have the draft tube but the manifold wasn't original to the car so not 100%, the timing over is original and doesn't have  the oil filler tube.
Would like to know if anyone else with LA D code car has a down tube?
I sourced a correct date coded manifold and there's no attachment for it at the rear of the intake.

When was your car projected to be built and or the engine assembly date?  Would help narrow down the search and give us more details as we discuss the details

[krelboyne]

Bob Mannel states that the change took place May 25, 1964, (June 1, 1964 for Comet). He mentions that the road draft tubes (called "non-emission reduction" systems) were installed where still allowed.

[J_Speegle]

........ He mentions that the road draft tubes (called "non-emission reduction" systems) were installed where still allowed.

Not sure what that means 

[jwc66k]

Not sure what that means 

It means that certain DSO's, also certain states and certain areas of states, did not require a PCV system for that time frame, or had implementation dates that were further out in time.
Jim

[J_Speegle]

It means that certain DSO's, also certain states and certain areas of states, did not require a PCV system for that time frame, or had implementation dates that were further out in time.
Jim

Guess he should have written "were still required"

[Hipo giddyup]

I'm guessing Maryland was lax on emissions at that time period?? My car's build date was supposed to be June 30th, 1964. This seems late according to the info provided from Mannel's book, then again, unless they were using the parts up on cars going to states where these parts "were still allowed". 

Attached are some pics such as the door data plate (I still have the original plate if you need that pic) and engine/head cast dates and assembly date to show the time frame of my car.

[Hipo giddyup]

Having some issues posting multiple pics... here are the others.

[Hipo giddyup]

Having some issues posting multiple pics... here are the others.

[DM_1964]

When was your car projected to be built and or the engine assembly date?  Would help narrow down the search and give us more details as we discuss the details

Jeff, projected build date was 3/24/64, engine block cast date 3/19/64 (4C19)

[FXguy]

I have San Jose built 13G D code with San Jose DSO, PCV and hose from oil fill cap to the side of the air cleaner (closed emissions).  It uses the screw-on adapter for the oil fill cap hose attachment to the air cleaner.  My understanding is that the late May 64 change back to road draft setup was not implemented in California at all.   Tough call on actual build date since I don't have the build sheet, but the car has a very low VIN.

None of the 64 1/2 K codes got road draft tubes - I established with Bob Mannell that the rear of the intake mounted road draft tube interferes with the Hipo exhaust manifolds - in fact it comes down right in the middle of where the exhaust manifold outlet is.  (Bob has since made a change to the supplemental change notes in the his small block Ford book on this subject.)  In addition, the 64 1/2 K code used the C4OF BT carb according to Ford literature, but the late Jon Enyeart of Pony Carbeurators told me back in the late 2000s that he had never seen a C4OF BT.  I am aware of some early 65 K codes (including Fairlane) that have the later K code road draft tube mounted on the RH valve cover where the PCV would otherwise go, but they have the C5 hipo carb on them.

-Scott

[michaelvonlanthen]

My D-Code with build date 6 July, DSO 75 Phoenix, has also the road draft system. Intake manifold casting number is C50E-9425-A. According to Bob Mannels book this should be correct for a late D-Code car.