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-   -   PCV systems on the smallblocks (https://www.fordbarn.com/forum/showthread.php?t=241015)

junkyardjeff 03-18-2018 09:36 AM

PCV systems on the smallblocks
 

I grabbed some parts off a 63 galaxie with a 260 that had the PCV on the intake,yesterday I was in a local old junkyard gathering the rest of the parts to make the 302 look older and found that most 64 and up had the PCV in the pass side valve cover and then I found a 65 Fairlane that had a road draft tube attached to the pass valve cover.I thought all motors had to have a PCV around 62 or 63 so was 65 the last year for a road draft tube.

KULTULZ 03-18-2018 09:46 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by junkyardjeff (Post 1606424)

I grabbed some parts off a 63 galaxie with a 260 that had the PCV on the intake,yesterday I was in a local old junkyard gathering the rest of the parts to make the 302 look older and found that most 64 and up had the PCV in the pass side valve cover and then I found a 65 Fairlane that had a road draft tube attached to the pass valve cover.I thought all motors had to have a PCV around 62 or 63 so was 65 the last year for a road draft tube.

As for CCV (Crankcase Ventilation), it depended on the area of the country whether a car/light truck had to have either. A car in CA or NY would require PCV where a state such as WY or MT might not.

FOMOCO assembled them as cheaply as possible to meet area emission law(s).

Ole Don 03-18-2018 11:41 AM

Re: PCV systems on the smallblocks
 

Yes, where it was to be sold new had a great deal to do with original equipment. Being from Minnesota, all the cars I saw had a battery that was a big grunt to lift, and a radiator the size of a big heater core. While scrounging a junk yard while in Oklahoma in the mid sixties, I found radiators big enough to cool a truck, and a battery that I could throw to the county line. Later, while working on the motor line at Ford, I found that alternator size, fan size, and other things that were different from place to place.

BW 03-18-2018 03:44 PM

Re: PCV systems on the smallblocks
 

Yes I think 65 was the last year.

junkyardjeff 03-18-2018 05:23 PM

Re: PCV systems on the smallblocks
 

I never seen a road draft tube on car that new.

V8 Bob 03-19-2018 07:19 AM

Re: PCV systems on the smallblocks
 

I can't find any pictures or evidence of any regular US production ford V8 using road draft tubes after '61, and certainly not in '65. What was found on that Fairlane was most likely someone's cobble job ventilation system.

junkyardjeff 03-19-2018 07:27 AM

Re: PCV systems on the smallblocks
 

I have a 292 from a 62 galaxie that has a road draft tube and figured that was about the last year,I grabbed all the PCV parts from a 292 in a 63 or 64 truck in a junkyard.Maybe the 65 had a earlier motor but I think the 62 and I know the 63 small blocks had the ventilation system hooked to the rear of the intake,the 65 had the tube hooked to the valve cover where a PCV would go and was a factory part.

robib 03-19-2018 08:12 AM

Re: PCV systems on the smallblocks
 

I have a friend who bought a 1965 Comet with an A code 289 4bbl brand new. Still has the car and the road draft tube that came with it. The road draft tube was attached to the right side valve cover. This car was delivered in Long Island, NY. So the answer is, yes some 1965 Fords came with a road draft crankcase ventilation system.

BW 03-19-2018 08:49 AM

Re: PCV systems on the smallblocks
 

Back to Back, My friends 65 Comet 289 2bbl has a road draft tube. His Grandmother bought new at Mc Coy Ford Lincoln Mercury. So we have two Comets in row!

V8 Bob 03-19-2018 09:00 AM

Re: PCV systems on the smallblocks
 

Anybody have any pictures of the '65 road drafts?

KULTULZ 03-19-2018 09:13 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by V8 Bob (Post 1606803)

I can't find any pictures or evidence of any regular US production ford V8 using road draft tubes after '61, and certainly not in '65. What was found on that Fairlane was most likely someone's cobble job ventilation system.

What he found is OEM (actually need good photo). Whether the car got either system depended entirely on the ENGINE CALIBRATION.

The road draft tube (and PCV valve were moved to the rocker cover in later production as it was a more efficient design. The rocker cover road draft will/should have the oil fill/ventilation cat (open system) on the left rocker cover.

Below is an early production MUST with road draft provision. Both road draft and PCV used the same intake for the period.

http://www.svs.com/zim/mustang/images/dif-e11a.jpg

All for the want of a BLACK ink cartridge... :(

V8 Bob 03-19-2018 09:54 AM

Re: PCV systems on the smallblocks
 

OK, you've convinced me. :) Just real odd Ford would switch to a pcv on the soon-to-be out of production 292" Y-block, along with the FE (and maybe others) in '61/'62, but would use the road draft on a brand new engine family all the way to '65. :confused:

KULTULZ 03-19-2018 10:05 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by V8 Bob (Post 1606872)

OK, you've convinced me. :)

Just real odd Ford would switch to a pcv on the soon-to-be out of production 292" Y-block, along with the FE (and maybe others) in '61/'62, but would use the road draft on a brand new engine family all the way to '65. :confused:

I just wish I could post more info but am waiting for printer ink.

FORD actually first offered PCV in the 1960 model year, a model year earlier than the CA requirement. As for the 292, it had to comply with differing area emission law(s) so it was fitted with PCV. That is why it is so confusing as the engines were built/calibrated for where the vehicle was to be sold.

Either FORD had to bring the 292 into compliance or was not allowed to sell the 292 equipped vehicle in CA for instance.

You are a tech guy.

Here Is Some Interesting Reading- https://www.tandfonline.com/doi/pdf/....1967.10468958

THANX for the discussion... ;)

KULTULZ 03-19-2018 10:09 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by junkyardjeff (Post 1606424)

I grabbed some parts off a 63 galaxie with a 260 that had the PCV on the intake,yesterday I was in a local old junkyard gathering the rest of the parts to make the 302 look older...

I always loved SLEEPERS. Open the hood and show the guys (usual suspect chebbie and NoPar owners) your antique looking install, they laugh and put their money up and you drive to the bank.

...sigh... :rolleyes:

V8 Bob 03-19-2018 10:10 AM

Re: PCV systems on the smallblocks
 

Thanks KULTULZ. Interesting read.

junkyardjeff 03-19-2018 05:00 PM

Re: PCV systems on the smallblocks
 

I think the next time I am there I will grab that road draft tube and valve covers,do not know if I would ever use the tube but who knows what will happen.

junkyardjeff 03-19-2018 05:01 PM

Re: PCV systems on the smallblocks
 

That PCV system I got from the 63 260 bolts where this road draft tube attaches.
Quote:

Originally Posted by KULTULZ (Post 1606853)
What he found is OEM (actually need good photo). Whether the car got either system depended entirely on the ENGINE CALIBRATION.

The road draft tube (and PCV valve were moved to the rocker cover in later production as it was a more efficient design. The rocker cover road draft will/should have the oil fill/ventilation cat (open system) on the left rocker cover.

Below is an early production MUST with road draft provision. Both road draft and PCV used the same intake for the period.

http://www.svs.com/zim/mustang/images/dif-e11a.jpg

All for the want of a BLACK ink cartridge... :(


KULTULZ 03-19-2018 05:56 PM

Re: PCV systems on the smallblocks
 

Correct. the intake was cast to accept either system.

Is this engine a 2V or 4V?

I would show you a photo of a period SHELBY TIGER ALUM 4V intake but your heart may not be able to take it... :cool:

junkyardjeff 03-19-2018 08:12 PM

Re: PCV systems on the smallblocks
 

It came from a 2 bbl motor.

estout81 03-19-2018 08:46 PM

Re: PCV systems on the smallblocks
 

The 5.0 EFI had the PCV in about the same place on the manifold.

KULTULZ 03-20-2018 01:10 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by estout81 (Post 1607102)

The 5.0 EFI had the PCV in about the same place on the manifold.

:eek:

Yeah it did come to think of it.

THANX for the memory jog...;)

willowbilly3 03-26-2018 04:48 PM

Re: PCV systems on the smallblocks
 

3 Attachment(s)
Quote:

Originally Posted by estout81 (Post 1607102)
The 5.0 EFI had the PCV in about the same place on the manifold.

You can't really see the pcv, it is off the 2 big vac ports and Teed. 5.0 efi intake modified to use twin .98 2100s on my 260.

5851a 03-30-2018 10:34 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by KULTULZ (Post 1607153)
:eek:

Yeah it did come to think of it.

THANX for the memory jog...;)

It wasn't the best system in cold climates. There was a mesh screen under it and short drives in sub zero would freeze it into a block of ice. Blowby would start oil leaking from all the gaskets and seals.

KULTULZ 04-08-2018 11:08 AM

Re: PCV systems on the smallblocks
 

1 Attachment(s)
Quote:

Originally Posted by KULTULZ (Post 1606878)

I just wish I could post more info but am waiting for printer ink.

FORD actually first offered PCV in the 1960 model year, a model year earlier than the CA requirement. As for the 292, it had to comply with differing area emission law(s) so it was fitted with PCV. That is why it is so confusing as the engines were built/calibrated for where the vehicle was to be sold.

Either FORD had to bring the 292 into compliance or was not allowed to sell the 292 equipped vehicle in CA for instance.

Well... :rolleyes:

Finally got the cartridges but FIREFOX updated my browser and I cannot communicate with the printer.

As soon as I join the living again, I will show the drawing.

ADDENDUM-

SHELBY COBRA TIGER

https://www.fordbarn.com/forum/attac...0&d=1523237472

KULTULZ 04-11-2018 02:36 AM

Re: PCV systems on the smallblocks
 

2 Attachment(s)
Finally... :rolleyes:

The setup is for both 2V and 4V.

https://www.fordbarn.com/forum/attac...6&d=1523431995

junkyardjeff 04-11-2018 07:15 AM

Re: PCV systems on the smallblocks
 

It looks like I will have to go back and get that filter and retainer.

KULTULZ 04-11-2018 08:32 AM

Re: PCV systems on the smallblocks
 

Yeah, that is the actual oil/vapor separator and is necessary. It is replaced on a scheduled basis.

C2OZ 6A631-A - FA-58

https://i.ebayimg.com/images/g/5E0AA...0O/s-l1600.jpg

Gasket PN- C2OZ 6870-A (FEL-PRO should have it)

Valve PN- C1AZ 6A666-A

PetesPonies 11-27-2020 12:59 AM

Re: PCV systems on the smallblocks
 

Road draft was absolutely used in the 1965 model year. Absolutely.

junkyardjeff 11-27-2020 09:09 PM

Re: PCV systems on the smallblocks
 

When and if this all goes togather I have a 66 4 bbl intake that has the provision and the three threaded holes for that PCV system but the larger hole is not drilled so it will have to be machined.

PetesPonies 11-27-2020 11:15 PM

Re: PCV systems on the smallblocks
 

They were delivered different ways. Some had a plug in the hole. Some had nothing but a flat place where it went. Some had the threaded holes for fasteners, but no opening for the gases.

KULTULZ 11-28-2020 08:19 AM

Re: PCV systems on the smallblocks
 

2 Attachment(s)
Quote:

Originally Posted by 5851a (Post 1611509)

It wasn't the best system in cold climates. There was a mesh screen under it and short drives in sub zero would freeze it into a block of ice. Blowby would start oil leaking from all the gaskets and seals.

Now we are talking 5.0L EFI correct? Was your 5.0L HO, STD or LT? How far north were you when the system froze?

Now for the earlier road draft design.

Two SBF tubes shown below, one manifold mount and the other rocker cover mount (1965) -

PetesPonies 11-28-2020 11:25 AM

Re: PCV systems on the smallblocks
 

Quote:

Originally Posted by KULTULZ (Post 1957098)
Now we are talking 5.0L EFI correct? Was your 5.0L HO, STD or LT? How far north were you when the system froze?

Now for the earlier road draft design.

Two SBF tubes shown below, one manifold mount and the other rocker cover mount (1965) -

Yep, correct :)

junkyardjeff 11-28-2020 02:19 PM

Re: PCV systems on the smallblocks
 

The PCV on the EFI is a pain to get to.


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