Are these hoses connected correctly?

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Mustang Mach 1 Fastback 1973
Hi everyone, I would like to draw on your expertise once again.

The previous owner used the hoses with the following connections, but I would like to make sure that these are correct, as I have already experienced a lot when refurbishing the Mustang. Please help me briefly if the connections are correct:

First:

IMG_3749.jpg
IMG_3752.jpg

Is orange correct from the metal to the blue emisson canister? I assume that it is the exhaust gas recirculation?

Nothing was currently connected to red, so that can't be correct. Which connection is missing there and where does it go?

Second:

IMG_3750.jpg
IMG_3751.jpg

Then there is green which is connected to the valve and goes to the black a/c vacuum canister. is that correct?

Thanks for your support
Ben
 
The orange is correct. It is for recovering fuel vapor from the gas tank. Fuel vapor is pushed into the blue canister generally while the car is off and the gas tank heats up while sitting on hot pavement or generally heats up on a warm day. There should also be a paper tube that also connects to the blue canister and the air cleaner that sucks the fuel vaper into the air cleaner while the engine is running.

The red connects to an intake manifold vacuum port to help the automatic transmission shift gears.

The green is also correct. It is a vacuum connection for the heater/ AC system black canister that provides vacuum to the various vacuum actuated items in that system. One of those being the valve in the heater hose in your pictures
 
Below are some file links to my Google Drive that will help you determine what vacuum line goes where. From your photos I could not tell the year Mustang you have, so the info I have provided is for 1973. If you have a 1973 year model Mustang, the 1973 Emission Control related documentation is from Volume 6 of the 1973 Shop Manual. You will find a section on the Fuel Vapor Control system, as well as the vacuum schematics for 1973 engines. The 71-72 emission control systems are very similar to 1973. Below are is also a link to some YouTube videos I did on the routing of the fuel evaporative lines for the Fuel Vapor Control system.

https://drive.google.com/drive/folders/1mH8-WcYBqjqUyN7QHyVF6wxFRZ82AfBQ?usp=drive_link

https://youtu.be/n9woMnHByts

https://youtu.be/ZasC4GH1XUo

https://youtu.be/SsbtiPWY9sU

If you have a 71 or 72 Mustang, the following link is for = a PDF file for all vacuum schematics from 1968 - 1972.

https://drive.google.com/file/d/1ZmOXEcNhDDPe884gi37HYdA-rDfcU6U8/view?usp=drive_link


Let me know if you have any questions or concerns, using this forum's messaging system.
 
Below are some file links to my Google Drive that will help you determine what vacuum line goes where. From your photos I could not tell the year Mustang you have, so the info I have provided is for 1973. If you have a 1973 year model Mustang, the 1973 Emission Control related documentation is from Volume 6 of the 1973 Shop Manual. You will find a section on the Fuel Vapor Control system, as well as the vacuum schematics for 1973 engines. The 71-72 emission control systems are very similar to 1973. Below are is also a link to some YouTube videos I did on the routing of the fuel evaporative lines for the Fuel Vapor Control system.

https://drive.google.com/drive/folders/1mH8-WcYBqjqUyN7QHyVF6wxFRZ82AfBQ?usp=drive_link

https://youtu.be/n9woMnHByts

https://youtu.be/ZasC4GH1XUo

https://youtu.be/SsbtiPWY9sU

If you have a 71 or 72 Mustang, the following link is for = a PDF file for all vacuum schematics from 1968 - 1972.

https://drive.google.com/file/d/1ZmOXEcNhDDPe884gi37HYdA-rDfcU6U8/view?usp=drive_link


Let me know if you have any questions or concerns, using this forum's messaging system.
Thank you for all your documents and notes @mrgmhale . I have an H-Code 1973 351C with A/C. However, I have not found these specifications in the manual. I have found the 351C V4 but not V2, or are they identical? Some info would be incredibly helpful as I don't think the valves are currently fitted correctly.

Thanks
Ben
 
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4V and 2V are same with regard to the hoses in question. There is supposed to be a special "S" shaped hose used between firewall heater hose connection and the vacuum controlled valve. That "S" hose keeps that valve up higher off of the valve cover. That special hose used to be reproduced, not sure if it still is. Turns out CJ lists it. https://www.cjponyparts.com/heater-control-valve-to-heater-core-molded-hose-mustang/p/CAA18112/
I was just looking into this I believe if you go to rockauto.com and search part number 87679 for the S shaped hose $5.22, and part number 80405 for 5/8 heater hose with 90 degree on one end $13.07 each(you need two). Both are Dayco hoses. So for $31 bucks plus shipping you could have hoses that fit nicely. I am about to order them myself. I will update on the fitment when they show up. With a bit of research you can find parts way cheaper that while not listed for our application should work. Worth it to avoid the classic car premium pricing. Also found part HV1022C which is the heater valve for $7.43. Total with tax and shipping $61.40. Should be here July 3rd so I will update how everything fits with pictures.
 

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The parts and installation for the coolant hoses have definitely been successfully completed by myself. My main concern here is the vacuum hoses. I am having trouble finding the correct hose installation for the V2 but I have just read that there are no differences between the 351C V2 and V4. I'll see if I can get it installed this weekend.
 
The parts and installation for the coolant hoses have definitely been successfully completed by myself. My main concern here is the vacuum hoses. I am having trouble finding the correct hose installation for the V2 but I have just read that there are no differences between the 351C V2 and V4. I'll see if I can get it installed this weekend.
Didn't see a picture, do you have vacuum lines connected to the vacuum canister? It's the other can right next to the vapor canister you have circled in orange. Large input vacuum hose, small output going to HVAC system. It provides a large area of vacuum to support the HVAC functions, basically input vacuum to heat and AC controls. Works like a accumulator accommodating changes in vacuum demand.
 
Ben, I'm just looking at this post for the first time. I've been off site for a while.
I don't know 73's, but the help you've been given is top notch.
However, I see one thing that really gets me going and I hope it does you too. That is the use of GEAR CLAMPS on hoses that should have correct style clamps, all of which are available. Gear clamps do have there uses and in some cases are correct, BUT not everywhere, especially fuel lines. They are very useful for temporary use while setting up or when you need to remove hoses while working on the engine, but that's it. Not only are they a potential weak point but they just look plain ugly and give the impression the owner just doesn't care.
This of course is my opinion, it's your car, your way.
 
Ben, I'm just looking at this post for the first time. I've been off site for a while.
I don't know 73's, but the help you've been given is top notch.
However, I see one thing that really gets me going and I hope it does you too. That is the use of GEAR CLAMPS on hoses that should have correct style clamps, all of which are available. Gear clamps do have there uses and in some cases are correct, BUT not everywhere, especially fuel lines. They are very useful for temporary use while setting up or when you need to remove hoses while working on the engine, but that's it. Not only are they a potential weak point but they just look plain ugly and give the impression the owner just doesn't care.
This of course is my opinion, it's your car, your way.
What are you using at this point? I try to use the original parts or reproductions everywhere.
 
What are you using at this point? I try to use the original parts or reproductions everywhere.
Surprisingly, I don't seem to have a lot of pics on file that actually show the type of clamps I use. I do see correct tower clamps on your heater hoses at the firewall and those are good in different sizes for other hose fittings. On fuel lines, clamps as seen in this (bad) pic or spring clamps seen on the tank outlet are preferred. Sorry about the poor pic quality, but I think you'll get the idea.
I would think that most auto stores nearby have these or similar. In the US, one can buy these clamps by the boxful in various sizes. Maybe you can there to.
 

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