A/C and heater vacuum lines?
 

Does someone have a diagram of the vacuum connections for a 70 with factory A/C? I'm working on getting my A/C going and none of the vacuum lines are conected to anything. It was like this since I bought the truck. Im replacing the evaporater with one that has the oriface in the inlet. I got it out of an 87 Oldsmobile station wagon. It bolts right in to our trucks. Someone can have my old evap, expansion, manifold hose for free if they want it. dont know if any good or not.

Hear is the evap going in
 

fits perfect.

ttt

is this what you want??????
 

if you need some thing else ,let me know.I have the whole service manual for 1970

I think he might be talking about the control vacuum lines.

just some words of adivce go get a new accumulator and dont use that one you have laying there that accumulator is trash once they are exposed to open air they suck the moisture out of the air and become filled to capacity rendering them useless in an a/c system

Thanks jef5150 but I need the vacuum control hoses locations.
Like on the back of the control head.

and the heater control valve.

and at the right kick panel.

and the pasenger side cowl.

http://www.digitalpose.com/mbr/540/2...8639678_vl.jpg


#1 will go to the water valve

#2 goes to a "T" that one side goes to the vacuum reservior and the other goes to the pass door

#3 will go to the outside vent.

I know the pic is small but it helped me when did the vacuum lines.

or if your switch only has two vacuum outlets..then use this diagram


http://www.digitalpose.com/mbr/540/2...1223412_vl.jpg

the top of the vacuumcontrol head moves. what atatches to it to move it?

mine had the 3 vacuum outlet and nothing was atatched to the top of the control head, It is all controlled by the position of the levers frum underneath it...not sure about if on a 2 outlet control head.

http://www.digitalpose.com/mbr/540/2...6803172_vl.jpg

Mine has two and it looks like a cable should attatch to the top part and make it pivot. it turns very easily 360 degrees.

Does that control head have anything connected underneath it?...not sure If I can help with that type, but after you figure it out, that vac diagram will help you the rest of the way.

no nothing underneath. and nothing was connected on top either.
nothing connected at all since I bought the truck.

hope these work ,,,
 

i have no idea how these are gonna turn out ,i had to compress them 5 times before i was aloud to send them!!!!

kinda fuzzy
 

another 1

There is some good info in these posts and I
sure saved it.

Thanks,

EdB

Thanks for all the help "jef5150" and "wreck."