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#1 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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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.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#2 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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Hear is the evap going in
fits perfect.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#3 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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ttt
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#4 |
Inline 69
Join Date: Apr 2003
Location: valleysprings,california
Posts: 1,018
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is this what you want??????
if you need some thing else ,let me know.I have the whole service manual for 1970
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#5 |
Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,450
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I think he might be talking about the control vacuum lines.
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"If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. ![]() We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck" |
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#6 |
Senior Member
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,950
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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
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Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member. |
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#7 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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Thanks jef5150 but I need the vacuum control hoses locations.
Like on the back of the control head.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#8 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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and the heater control valve.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#9 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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and at the right kick panel.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#10 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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and the pasenger side cowl.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#11 |
Registered User
Join Date: May 2003
Location: Paris, TX
Posts: 60
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![]() #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. |
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#12 |
Registered User
Join Date: May 2003
Location: Paris, TX
Posts: 60
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or if your switch only has two vacuum outlets..then use this diagram
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#13 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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the top of the vacuumcontrol head moves. what atatches to it to move it?
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#14 |
Registered User
Join Date: May 2003
Location: Paris, TX
Posts: 60
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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.
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#15 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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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.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#16 |
Registered User
Join Date: May 2003
Location: Paris, TX
Posts: 60
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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.
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#17 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
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no nothing underneath. and nothing was connected on top either.
nothing connected at all since I bought the truck.
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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#18 |
Inline 69
Join Date: Apr 2003
Location: valleysprings,california
Posts: 1,018
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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!!!!
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#19 |
Inline 69
Join Date: Apr 2003
Location: valleysprings,california
Posts: 1,018
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kinda fuzzy
another 1
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#20 |
Registered User
Join Date: Jan 2003
Location: Gulfport Ms
Posts: 401
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There is some good info in these posts and I
sure saved it. Thanks, EdB |
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#21 |
"See the U.S.A....."
Join Date: Apr 2002
Location: Richmond TX.
Posts: 269
|
Thanks for all the help "jef5150" and "wreck."
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1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston) |
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