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Author Topic: Vacuum Connections for a 79 4cyl.  (Read 6914 times)

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Offline TIGGER

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Vacuum Connections for a 79 4cyl.
« on: January 12, 2008, 02:20:54 AM »
Here are a bunch of pictures from my 79 wagon.  The car is all original and pretty much unmolested under the hood.  It is a 2.3L 4spd car with dealer air that my Dad special ordered.  The carb in the pic is a NOS 80 carb so the connections for the choke are a little different.  I made an adapter pigtail so I can put the original carb back on that I had Pony Carbs rebuild.  I used this car as a guide when I did the motor and transmission swap on my 78 Crusing Wagon.  I copied all the connections and have had no problems with the Cruising Wagon since therefore I assume other years are similar.  I created the pictures in Power Point and I will convert the file to .pdf in case anyone wants an electronic copy.  Let me know if there are any questions.
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline TIGGER

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Re: Vacuum Connections for a 79 4cyl.
« Reply #1 on: January 12, 2008, 02:24:04 AM »
More Pics
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline TIGGER

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Re: Vacuum Connections for a 79 4cyl.
« Reply #2 on: January 12, 2008, 02:27:40 AM »
More Pics
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline TIGGER

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Re: Vacuum Connections for a 79 4cyl.
« Reply #3 on: January 12, 2008, 02:28:28 AM »
Last pic
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline dave1987

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Re: Vacuum Connections for a 79 4cyl.
« Reply #4 on: January 12, 2008, 05:01:26 AM »
This has helped me tremendously! I can not thank you enough for posting this.

Now that I have my vacuum lines all sorted out and connected properly my trusty pinto drives better than ever. And with a new engine to pair with, like new!

I hope to see some good gas mileage improvements with this too.

Initially I was confused because there was a two way splitter connected to the red valve on the air cleaner and the carburetor base connection was somewhere else.
1978 Ford Pinto Sedan - Family owned since new

Remembering Jeff Fitcher with every drive in my 78 Sedan.

I am a Pinto Surgeon. Fixing problems and giving Pintos a chance to live again is more than a hobby, it's a passion!

Offline dave1987

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Re: Vacuum Connections for a 79 4cyl.
« Reply #5 on: January 12, 2008, 05:15:44 AM »
If the pictures don't load for some reason or if they ever go down, here is a text version of it (assuming you know the valves spoken of):


Lower Thermactor Valve Port:
     * Intake vacuum nipple
     * Distributor vacuum advance
     * White valve on air cleaner - Outside port
            * Choke - Inside port (On white valve)
     * Underside of air cleaner - Left/Passenger side port

Upper Thermactor Valve Port:
     * Red valve on air cleaner - Lower port

Air Cleaner Flapper Valve:
     * Underside of air cleaner - Right/Driver's side port

Charcoal Box Under Fender:
     * Crank case vent valve (PCV Valve)
     * Vacuum block (rear of intake manifold) - Outside port

Vacuum Block Valve (rear of intake manifold)
     * Base of carburetor - Inside port
     * Charcoal under fender - Outside Port


I realize I have missed both green valves on the air cleaner, but I did not have them on my system and had to bypass them to match your pictures/diagram.

This is how I wrote down everything onto paper so I could go to the engine and change things. I did this on my 78' Sedan with manual steering and a 4 speed tranny. No AC or power brakes.
1978 Ford Pinto Sedan - Family owned since new

Remembering Jeff Fitcher with every drive in my 78 Sedan.

I am a Pinto Surgeon. Fixing problems and giving Pintos a chance to live again is more than a hobby, it's a passion!

Offline TIGGER

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Re: Vacuum Connections for a 79 4cyl.
« Reply #6 on: January 12, 2008, 10:56:55 AM »
Your welcome Dave, I am glad I could help.  I have been meaning post this info for a while now.  I just needed someone interested to get me started  ;D  Take care
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline dave1987

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Re: Vacuum Connections for a 79 4cyl.
« Reply #7 on: January 12, 2008, 08:42:52 PM »
Well even if it only has helped me, I hope it was worth it. I'm sure it will come in handy for someone else in the future though.

None of the diagrams in pinto books have a clear way of mapping out the vacuum system as it seems every book names valves differently. I'm curious as to how the white valve (Distributor Vent Valve as called by Haynes) effects engine performance.

Driving the car to and from work today I noticed the car doesn't require as much footwork on the clutch to get the car going and it doesn't chug at all when the car first starts moving.

I'm very thankful and extremely happy to have my engine setup correctly after three years of it being rebuilt. I told my dad about it (he helped rebuild the engine) and he was thrilled that someone was able to help. :)
1978 Ford Pinto Sedan - Family owned since new

Remembering Jeff Fitcher with every drive in my 78 Sedan.

I am a Pinto Surgeon. Fixing problems and giving Pintos a chance to live again is more than a hobby, it's a passion!

Offline cromcru

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Re: Vacuum Connections for a 79 4cyl.
« Reply #8 on: January 13, 2008, 12:12:02 AM »
i noticed from your pics on the smog that your car is a federal smog car.those are easier to deal with then the california smog car.by chance did you keep your calibration tag on the timing chain cover.reading the smog diagrams can be miss leading at times. good pics. harold
79 bobcat  78 ford pinto station wagon   93 ford mustang lx   90 ford mustang cont lx  63 chevy truck    52 studebaker 2r16a

Offline TIGGER

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Re: Vacuum Connections for a 79 4cyl.
« Reply #9 on: January 13, 2008, 01:51:21 AM »
Thanks and you are correct, the car is not a California Emissions car.  It was ordered in Idaho and was registered in Oregon after my dad took delivery.  I know what you mean about the added hassle as my Uncle that lived in California and had an 80 Bobcat Wagon for a number of years that he and I worked on from time to time when I came down to visit.  He had well over 200K on the original drivetrain when he sold it in 1999.  The guy that bought the car blew up the engine shortly after. 

I am not sure what tag you are referring to but I only removed the timing cover to replace the timing belt.  Other than a good cleaning I did not do anything else to it.
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Offline dave1987

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Re: Vacuum Connections for a 79 4cyl.
« Reply #10 on: January 13, 2008, 04:53:46 AM »
I believe he is talking about the sticker on the valve cover. Mine is also an Idaho Pinto. Same state all it's life. :)
1978 Ford Pinto Sedan - Family owned since new

Remembering Jeff Fitcher with every drive in my 78 Sedan.

I am a Pinto Surgeon. Fixing problems and giving Pintos a chance to live again is more than a hobby, it's a passion!

Offline junker

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Re: Vacuum Connections for a 79 4cyl.
« Reply #11 on: February 04, 2016, 09:45:10 PM »
Boy I thought I had vacuum lines. Thanks for all the pics but I have a different kind of a beast. Boy I sure wish people would leave things the way they are suppose to be, the car runs so much better. I got the car running at cold start but when I drop it off fast idle it falls flat on its face, unless I keep my foot on the pedal,and until the soleniod on the carburetor kicks in it won't idle.

Offline bbobcat75

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Re: Vacuum Connections for a 79 4cyl.
« Reply #12 on: February 08, 2016, 10:19:04 AM »
these pics are GREAT!! thanks for sharing!!!
1975 mercury bobcat 2.8 auto
1978 mercury bobcat wagon 2.3l - soon to have a 88 tc drive line
1975 ford pinto - drag car - 2.3l w/t5 trans - project car