![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 500
|
AC and Heater Hose Routing
Upon install of the new ac lines, I am a bit disappointed with the inter action contact with the heater hoses. Can I ask someone for a picture or two of the routing of these lines? 72 c20 version with a SBC. Thank you in advance.
|
![]() |
![]() |
![]() |
#2 |
Senior Member
![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,237
|
Re: AC and Heater Hose Routing
Factory lines?
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
![]() |
![]() |
![]() |
#3 |
Senior Member
![]() Join Date: Aug 2011
Location: Reno, Nv.
Posts: 1,433
|
Re: AC and Heater Hose Routing
This is my 72' K2500, should be the same. Hopefully this helps you.
__________________
1927 Willy's Knight 24,000 original miles, 1958 Impala 283/Powerglide, 1964 C-30 383/4 speed, 1971 Monte Carlo 350/350, 1972 GMC K2500 350/350, 1976 Chev. K10 350/350, 2006 GMC Sierra 2500HD LBZ Duramax/Allison, 2006 Chev. Silverado K3500 LBZ Duramax/Allison |
![]() |
![]() |
![]() |
#4 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
|
Re: AC and Heater Hose Routing
My '69. As original. Even has the original clamps, straps, etc. I have a few different shots, but this is the most inclusive.
__________________
Jim |
![]() |
![]() |
![]() |
#5 |
Senior Member
![]() Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,237
|
Re: AC and Heater Hose Routing
Jim that engine bay is beautiful. Couple more
__________________
Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assembly kit for restoring the (a) truck from the ground up. My build thread, and more on the assembly kit https://67-72chevytrucks.com/vboard/...d.php?t=730025 |
![]() |
![]() |
![]() |
#6 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 500
|
Re: AC and Heater Hose Routing
Thank you every one. Jim, I was specificly thinking of your truck when I posted. Looks like the 69 had a different set up for the heater line and valve location. My 72 heater hose valve is mounted on the wheel well liner. Can someone confirm the 72 valve is mounted on the wheel well? Does the hose lay on top of the ac compressor and under the ac muffler pipe or up over the compressor mount area and along the muffler pipe after the bend and over to the valve?
|
![]() |
![]() |
![]() |
#7 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
|
Re: AC and Heater Hose Routing
Valve attached to inner fender is correct for '70-'72.
__________________
Jim |
![]() |
![]() |
![]() |
#8 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 500
|
Re: AC and Heater Hose Routing
Here is a shot of my current route. Seems the heater and ac hoses are way too much in contact
|
![]() |
![]() |
![]() |
#9 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
|
Re: AC and Heater Hose Routing
I'm 2000 miles from the truck, so I need to rely on my picture file. Here is a pre teardown shot that may help. Ignore the 2 red wires in the foreground.
__________________
Jim Last edited by FirstOwner69; 03-05-2023 at 12:28 AM. |
![]() |
![]() |
![]() |
#10 |
Senior Member
![]() Join Date: Feb 2022
Location: Ca
Posts: 500
|
Re: AC and Heater Hose Routing
69 was way different than later years. 69 used the port off the water pump. Later years used the port off the intake manifold by the tstat. I guess the question is...does the hose from the manifold port route over the compressor front mount by the pully, or under the ac muffler pipe allowing that hot hose to contact the ac compressor housing.? I would think heat transfer to be a issue but in thinking about it, the air flow off the radiator is likely just as much a heat issue as a hot hose.. Again I am way over thinking this. I will rebuild this 500 times laying in bed tonight.
|
![]() |
![]() |
![]() |
Bookmarks |
|
|