Help! Smog control vacum lines

[lostinthesixties]

I have a 1980 L48 Corvette. I have had it for almost 20 years. The A.I.R. pump was gone when I bought it. Over the years the small rubber hoses that help with the polution control have been removed or rerouted by accident. We did a valve job and forgot to note how the hoses were routed. I would like to correctly reconnect them. Things like the vacum hose from the carburetor to the vacum advance on the distributer, or the line that opens and closes the EGR Valve,for example.
I have an assembly manual and a Haynes manual but the pictures are not real clear. Does anyone have any pictures or diagrams that might show the routing of these little hoses a little clearer. Showing them on an individual basis might be great.
Thanks

 

[Peer81]

If you could explain what is on the car and what has been removed that would be a great help.
There are pictures with the vacuum lines but that is with all the smog stuff in place. When stuff has been removed and vacuum lines have been retoured or vacuum openings closed it's not easy to give you any info with only 6 lines of info

Greetings Peter

 

[bill81vette]

1st welcome to CAC!!!
2nd give me a day or two to go thru my cd's of pics to find what your looking for....

 

[lostinthesixties]

I have a 1980 L48 Corvette. I have had it for almost 20 years. The A.I.R. pump was gone when I bought it. Over the years the small rubber hoses that help with the polution control have been removed or rerouted by accident. We did a valve job and forgot to note how the hoses were routed. I would like to correctly reconnect them. Things like the vacum hose from the carburetor to the vacum advance on the distributer, or the line that opens and closes the EGR Valve,for example.
I have an assembly manual and a Haynes manual but the pictures are not real clear. Does anyone have any pictures or diagrams that might show the routing of these little hoses a little clearer. Showing them on an individual basis might be great.
Thanks

Thanks for your reply, nothing has been removed except the A.I.R. pump and the pipes to the exhaust manifolds and I don't care about any of that at this point, and the rubber hoses.
The only thing I need is the correct connections points of the rubber hoses. For example: I know that the distributor needs vacum from somewhere to the vacum advance. I know where to connect the hose to the vacum advance but I am not sure where to connect the other end of the hose and is it a direct line. I know where to connect the hose on to the EGR valve but where does the vacum come from for that? There are three devices on the front of the intake manifold, two in the thermostat housing and one in the intake manifold water jacket. I am pretty sure they are in and out, but in from where and out to where? What controls the flaps in the air intake snorkles of the air breather? Where does the vacum come from to open and close the heat riser valve? I know that some of these are interconnected, and that some have something in the line and I don't know for sure what they are, they might be either filters or check valves, if they are in there, I don't know what they do.
That's pretty much the best that I can describe what I am looking for. Of course some lines are there now, for example I do have the vacum advance connected directly to a port on the bottom front of the carb, that seems to work OK, but I have no idea if that is the correct place to connect that hose. Sorry to be so wordy here but that is the best way that I can describe what I need.
Thanks again for your help. John

 

[Peer81]

Do you have the original Quadrajet or something else?

Greetings Peter

 

[lostinthesixties]

Do you have the original Quadrajet or something else?

Greetings Peter

Yes I do have the original Quadrajet, as far as I know almost everything about the car is oringinal. I added side pipes.

 

[Peer81]

This is the emissions label for a '81. I think it should be almost the same.

Greetings Peter

 

[lostinthesixties]

This is the emissions label for a '81. I think it should be almost the same.

Greetings Peter

Thank you again Peter. I don't think your diagram works for my car because the '81 has a computer and selenoids and the '80 does not have either of those things. However, I think I have been able to solve my problem, partly by accident. Burried deep in the bowles of Ekler's web page is a drawing that got me started on the path of figureing this out. On this label that you sent me are the letters, EFE TVS. On my emission label I also have those letters and two more sets of letters, EGR TVS and DISTR TVS. I mentioned those three things in my opening post as being, two in the thermostat housing and one in the intake water jacket. The problem was that I didn't know what the letters stood for and which was which.
While searching around the web trying to find out what the letters stood for,I accidently discovered a pretty good drawing on Ecklers Web Page, of the three switches, where they were situated on the front of the engine and their part numbers. I looked up the part numbers and lo and behold there they are, even colour coded. I have been working on installing the hoses this morning and I think I have it.
I had searched those letters earlier in Eckler's and several other Corvette suppliers and didn't find what I was looking for and all of a sudden today, there it was.
Thanks for your kindness and time in helping me. John

 

[LT4man]

I am so happy for your success!

This is such a great site. To find information. And to make new friends.

While driving your repaired Vette, please be sure to SAVE the WAVE!