Topic: Vacuum Diagram
in Forum: C3 General Discussion
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Can anyone post a diagram that is for the 70 - 72 that includes the wiper door and headlight doors together. I cant find the book I bought that had a diagram in it.
Thanks
Rodney
Thanks
Rodney
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
I have a color-coded one here sumwhurs, but this one was handy....
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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Ormond Beach, FL - USA
Joined: 7/28/2012
Posts: 19
Vette(s): 77 coupe, yellow, auto, L series, A/C, T top, Grey leather interior. It is about 75% & matching #'s. The miles are 117K & intend on restoring bit by bit to enjoy Cruises & rallies in Florida , & maybe some shows ?
Zipcorvette.com also has the diagram online with complete vacuum hose kits for your specific year cut to order. Hope it may help you out.
Enjoy
Joel,
In your diagram that you posted , the vacuum hose that comes off the override switch and heads front. When it gets to the vacuum tank I am assuming the hose continues to the front 2 relays and does not connect to the tank. The pic puts the tank on top of the hose but I dont think it is plumbed into the tank. I know on my 74 that hose goes directly from the override to the relays. I am just making sure I have this right so when I hopefully get my new switch today I can get these lights to operate correctly. Then I'll move on to the wiper door next.
Thanks for all your help.
Rodney
In your diagram that you posted , the vacuum hose that comes off the override switch and heads front. When it gets to the vacuum tank I am assuming the hose continues to the front 2 relays and does not connect to the tank. The pic puts the tank on top of the hose but I dont think it is plumbed into the tank. I know on my 74 that hose goes directly from the override to the relays. I am just making sure I have this right so when I hopefully get my new switch today I can get these lights to operate correctly. Then I'll move on to the wiper door next.
Thanks for all your help.
Rodney
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Rodney, here's a different diagram, with purdy colors I got from Gil....
It's a little more detailed. You are correct about the over-ride hose going tot he relay valves, tho.
http://www.c3vr.com/member_pages/4401_4500/4427/headwipevac.JPG
I can forward you all of the other stuff I got, too, iffin ya want....
It's a little more detailed. You are correct about the over-ride hose going tot he relay valves, tho.
http://www.c3vr.com/member_pages/4401_4500/4427/headwipevac.JPG
I can forward you all of the other stuff I got, too, iffin ya want....
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Thats a great diagram! Now if only the headlight switch would have shown up today like it was supposed to. I came home and no delivery on the porch. Ran to the mailbox and no mail. Yes Ran! So when it arrives on Thursday I will start again. Thanks for posting that one. And the other info as well. The only thing Im not sure about is the RED comments? LOL
Thanks Again
Rodney
Thanks Again
Rodney
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
rod7515 said: The only thing Im not sure about is the RED comments? LOL
Thanks Again
Rodney
Thanks Again
Rodney
You KNOW it's true....
You can thank Gilbert for the color coded diagram, and the other info I sended ya. He shared it with me.
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Good News! Last night I put the new headlight switch in and finally the headlights go up and down like they are supposed to. The only thing I saw on the diagram that was different are the 2 vacuum hoses going to the headlight switch. The ports on the switch are to be numbered as #2 & #3. However my switch had no numbers on it so it could be that the switch is slightly different but I had to reverse those two per the diagram. Good news is that the lights now operate. Thanks for all your help.
Rodney
Rodney
in Forum: C3 General Discussion
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