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03-22-2020, 05:18 PM
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#1 |
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Registered User
Join Date: Jul 2017
Location: Longmont, Colorado
Posts: 64
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72 C10 w/ AC Evap drain hole plug
Hey guys I'm working on my AC vents cables in control unit and putting in a new selector box.
Underneath evaporator there's a hole-in there's a piece of metal can somebody tell me how this is supposed to fit in there? And should I seal it or is this for leakage?
__________________
1972 C10 LWB 2WD 307 4 speed Rescued from Field July 2017 |
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03-22-2020, 05:49 PM
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#2 |
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Carpe manana
  
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,449
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Re: 72 C10 w/ AC Evap drain hole plug
It’s like a trap door. Just muscle back up and leave as is.
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308  Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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03-22-2020, 08:09 PM
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#3 |
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Senior Member
 Join Date: Jan 2010
Location: Here
Posts: 5,557
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Re: 72 C10 w/ AC Evap drain hole plug
I believe that it's to check the resistors above it to see if they are bad
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03-22-2020, 08:54 PM
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#4 |
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Registered User
Join Date: Jul 2017
Location: Longmont, Colorado
Posts: 64
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Re: 72 C10 w/ AC Evap drain hole plug
Ok cool.
I did kinda figure it out and forced it back in. Maybe should have filed the edges a bit to derust it. But it's back in. Thanks guys. Larry
__________________
1972 C10 LWB 2WD 307 4 speed Rescued from Field July 2017 |
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03-23-2020, 12:32 AM
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#5 |
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Senior Member
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,852
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Re: 72 C10 w/ AC Evap drain hole plug
I always thought that trapdoor was to direct some A/C air to the floor if desired.
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Jim |
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03-23-2020, 11:22 AM
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#6 | |
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Registered User
Join Date: Jul 2017
Location: Longmont, Colorado
Posts: 64
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Re: 72 C10 w/ AC Evap drain hole plug
Quote:
Interesting thought. May force it back out and clean it up a bit then. Make it easier to swing open.
__________________
1972 C10 LWB 2WD 307 4 speed Rescued from Field July 2017 |
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03-23-2020, 11:54 AM
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#7 |
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Senior Member
Join Date: Jan 2010
Location: Here
Posts: 5,557
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Re: 72 C10 w/ AC Evap drain hole plug
It's funny because my 67 unit has 2 of them on the bottom I believe. I'll check on that when I get back to my truck. Nope just 1. Must be seeing things
Last edited by chewychevy67; 03-23-2020 at 04:17 PM. Reason: Correction |
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03-23-2020, 12:32 PM
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#8 |
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Carpe manana
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,449
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Re: 72 C10 w/ AC Evap drain hole plug
I imagined it was a weep hole for a possible heater core leak
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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