Today I went and replaced all the vacuum lines that I could, going off a kit purchased from an unnamed but well-known vendor (No worries, Dave, not Pelican!).
The good:
- The hoses that did fit were all cut with a couple inches to spare, no problem with the lengths.
The bad:
- The kit was advertised as fitting '75 and '76 cars, but did not contain any hose for the connections to and from the charcoal canister. Looking at what's left over (a bunch of 14mm ID hoses) they seemed to assume that 14 mm ID is correct, while in reality it is 12. I could have made it work with hose clamps, but the kit did not contain any.
The ugly:
- The kit was advertised as coming with a diagram to help with installation. It does come with a diagram and a spreadsheet listing the IDs and lengths for the hose in the kit. However, the color is not listed, but I was able to guess which is which. But the diagram is the worst. It is a hand-drawn diagram that does not contain any information about the air pump and EGR systems. It also does not tell you which diameter hose to use where or which color - it's all uniformly black and white. I serious thumbs-down for this diagram. However, a good one that includes colors and diameters does not seem to be available at all. I was left guessing most of the time.
Below there are some pictures of the engine compartment from three sides with the air cleaner removed. It shows some of the interesting emissions componentry on the 1976 2.0, like the air pump (the thing sitting on top of the fan housing) and the EGR valve and air filter inlet connection (to the right of the air filter).
I saved all the hoses and plan on creating my own diagram, complete with diameters and colors and lengths.
View from drivers side:
View from passenger side:
View from rear:
Hope this helps someone.