Topic: Canadian - 390 GT - PCV and emission systems

[Vince22]

The metal PCV transfer tube was used on most 390-4V engines since 1966 in the US. I do not know about Canada though.
Found a picture on my GT/CS forum of a 1968 S code Mustang from Canada. The Marti Report indicates "Non- Emissions System" in the options.
Does your engine look roughly the engine in the photo?  Google is your friend for the 1968 Canada vacuum routing. It likely looks the same or close to the 1967 S code non-California emissions.

Indeed, mine looks the same (single diaphragm distributor, no PVS, no PCV tube, no rear intake manifold fitting...).
And I just checked my marti report, it is indicated "Non- Emissions System" in the options as well...

So I guess that the Single Diaphragm Distributor has just to be connected to the time spark vacuum source of the carb (as today)

Now my questions are:

• you can see the current front intake manifold fitting on the attached pictures. I do not think that it is the original one. Do you confirm ? If yes, what is the correct PN of this intake manifold fitting, which is, today, only connected to the brake booster
• as you can see on the attached pictures, the PCV valve is directly connected to Power Brake port of the carb. Is-it correct ?

[DTruitt]

Vince, your DSO "B7" indicates Canada. 
In 1968, I believe that most of the exported 390-4V's to Canada did not have Thermactor smog systems, and they used 1967 air cleaners.
Are you making your car compliant for 1968 Canadian rules?

You are correct! The 67 type air cleaner is correct, and no thermactor system.

Danny

[J_Speegle]

You are correct! The 67 type air cleaner is correct, and no thermactor system.

Danny

Just for clarity and for others reading this thread later with Canadian cars.

Which 67 air cleaner?  Guessing the one without the snorkel and without the front nipple for the driver's side breather cap???

[DTruitt]

Jeff, I haven't seen a lot of examples, but it is my understanding it was the one with the screens and no snorkel.  Not sure about the nipple. I haven't researched it lately.

Danny

[Vince22]

Does anyone have a picture of an original 67 GT 390 PCV system?
Then I will be able to see if my "Canadian" 1968 GT 390 has the same configuration...

[J_Speegle]

Does anyone have a picture of an original 67 GT 390 PCV system?
Then I will be able to see if my "Canadian" 1968 GT 390 has the same configuration...

Would look very much like the 68 system with the balancing tube, rubber line to the PVC from the tube

Using search and "67 390 PVC" this thread came up. Believe there may be more of them

http://www.concoursmustang.com/forum/index.php?topic=5000.msg27913#msg27913

[DTruitt]

I just came across a build sheet I had saved with Canadian Export B2, there is an "X" for non-emission.

8T01S118XXX

Engine: CN319J

Air Cleaner: C7ZF-E

Transmission: PGA-P

I know this is an older thread but I wanted to share what I found.

Danny

[J_Speegle]

I just came across a build sheet I had saved with Canadian Export B2, there is an "X" for non-emission.

Which box (line and column) did you find the X in that you describe above? Would help so I don't have to go through each row and and such Plus it seems that I have some Canadian delivered buildsheets to look at also

Thanks

[DTruitt]

Jeff,

B 1

Danny

[Coralsnake]

Dan, can you send me a copy or post it?

[J_Speegle]

Jeff,

B 1

Danny

Thanks - Unfortunately that little section (about five boxes) is missing from the one I've got  (

Did get your email

[WT8095]

Here's the relevant pages from the '68 engine manual.

• The oil cap that's called out for Canadian application is the flat one without the hose (ignore the hose in the illustration, it's only for domestic applications).
• The distributor vacuum illustration may or may not apply to Mustangs, as they are not specifically listed. But it's the only 390 M/T vacuum illustration in the book, so hopefully it will help.

[tyfaciane]

Moving this over to the lounge area since its more about modifications than originality   As has been our practice over the years

Isn?t it:

Left to right:  428CJ  -  390GT  -  PI

The nipple that comes off flatter is for the 428CJ because the intake runners are so tall that the nipple accesses above the valve cover at a flatter angle.  390GT and PI intakes are more shallow, so the nipple has to extend at a sharper angle.  I didn?t know there were 3; I thought it was 2, PCV tubes that is,  the FE and the 428CJ.

[bullitt68]

Here's the relevant pages from the '68 engine manual.

• The oil cap that's called out for Canadian application is the flat one without the hose (ignore the hose in the illustration, it's only for domestic applications).
• The distributor vacuum illustration may or may not apply to Mustangs, as they are not specifically listed. But it's the only 390 M/T vacuum illustration in the book, so hopefully it will help.

Great diagrams. So according to the drawing it shows the Canadian air cleaner with the valve cover breather tube & distributor vacuum off the carburetor.

On the last post it shows the 3 different PCV tubes, but the middle one for the 390 does not show the vacuum fitting that goes into the intake. I am looking too confirm what both fittings looks like as I have seen several different versions of them. I am not sure how accurate the drawing is fro the previous post regarding the 2 fittings for the 390.

[bullitt68]

While we are on the subject of the PCV tube and the fittings, should the fittings be painted or bare? I have seen photos of both. Also looking to confirm the difference between the 390 and 428 fittings from & rear on the intake and the vacuum tree, assuming there are different applications. The one below was on my car, but does not mean it was correct or came on the car as delivered

Thanks