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01-27-2009, 03:12 PM
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#1 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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What is this thing?
I am cleaning up the friewall of all wires/and uneccessary stuff, what can I get rid of in this pic? I don't plan on using stock ac/heat but it has to stay until I get the aftermarket kit. What is the ball thingy in the middle of the pic? What else can I remove butstill retain the heat/defrost portion of it?
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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01-27-2009, 03:18 PM
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#2 |
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Registered User
Join Date: Feb 2007
Location: Austin, TX
Posts: 3,930
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Re: What is this thing?
It stores vacuum that operates the vacuum actuators for the ducts.
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1977 GMC Sierra Grande |
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01-27-2009, 03:29 PM
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#3 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: What is this thing?
So I need to keep it for the heat to work right?
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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01-27-2009, 04:08 PM
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#4 |
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like a rock
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 517
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Re: What is this thing?
Yes, or the heat will just go to the floor and not to the window. There should also be line going to the manifold.
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01-30-2009, 09:57 AM
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#5 |
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Registered User
Join Date: Sep 2008
Location: San Antonio, TX
Posts: 55
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Re: What is this thing?
On my 78, that canister is more squared off than that one, but it serves the same purpose. Currently all the hoses are plugged and tie-wrapped out of the way, because I don't know where they should go. Any pix of the end points of the two lines coming off that canister?
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1978 Silverado Big 10 - "The River Runner" 1969 GMC C/10 - "The 2008-09 Winter Project" |
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01-30-2009, 03:13 PM
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#6 |
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Registered User
Join Date: Mar 2008
Location: williamsport,pa
Posts: 329
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Re: What is this thing?
our trucks dont have vacuum actuators for the heat and defrost. its probably for emmission or cruise control. my bet woud be emmission.
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01-30-2009, 03:28 PM
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#7 | |
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Registered User
Join Date: Sep 2008
Location: Bailey, NC
Posts: 2,462
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Re: What is this thing?
Quote:
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Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT |
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01-30-2009, 03:32 PM
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#8 |
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Registered User
Join Date: Sep 2008
Location: Bailey, NC
Posts: 2,462
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Re: What is this thing?
There is nothing you can remove in the pic and retain heat/defrost. You need the blower motor, resistor block, heater core and vacuum canister. What kind of aftermarket unit are you installing? I'm looking one for my dads' truck.
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Jeramy '84 GMC project truck '85 Chevy 4X4 SOLD '07 Chevy Trailblazer SS 5th Annual SHPHC Car/Truck Show Pics http://67-72chevytrucks.com/vboard/s...d.php?t=543605 UPDATED PICS! CHECK 'EM OUT |
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01-30-2009, 04:06 PM
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#9 |
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Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: What is this thing?
Vintage air has a bolt in kit but you need heat only controls for it.
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