A/C evap drain install -non-A/C cab - The 1947 - Present Chevrolet & GMC Truck Message Board Network

weq92f · 10-26-2016, 05:46 PM

So, I've acquired my new 67 SWB Fleet side. The VAir system was installed about 5 years or so ago and was never used AFAIK. I'm assuming this really because the compressor had the wrong seal and would not hold vacuum. Not to mention, now that I fixed that, I have a new leak in my interior!

My problem now is that I need to make a drain hole somewhere for the evaporator condensate. VAir instructions say measure 1" down from the drain nipple on the Evaporator housing, drill a 3/8" hold in the firewall at that point and then put the hose through that with an elbow fitting.

What have you all done with your evap drain? Anybody know where the factory location would be for a factory A/C cab?

Thanks,

-weq

Andy4639 · 10-26-2016, 06:48 PM

Factory AC cab doesn't have one! The evaporator is on the motor side in a factory setup. Just do as the directions say and all is fine.

10-26-2016, 05:46 PM	#1
weq92f Registered User Join Date: Oct 2016 Location: Dallas Texas Posts: 3,223	A/C evap drain install -non-A/C cab So, I've acquired my new 67 SWB Fleet side. The VAir system was installed about 5 years or so ago and was never used AFAIK. I'm assuming this really because the compressor had the wrong seal and would not hold vacuum. Not to mention, now that I fixed that, I have a new leak in my interior! My problem now is that I need to make a drain hole somewhere for the evaporator condensate. VAir instructions say measure 1" down from the drain nipple on the Evaporator housing, drill a 3/8" hold in the firewall at that point and then put the hose through that with an elbow fitting. What have you all done with your evap drain? Anybody know where the factory location would be for a factory A/C cab? Thanks, -weq

10-26-2016, 06:48 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: A/C evap drain install -non-A/C cab Factory AC cab doesn't have one! The evaporator is on the motor side in a factory setup. Just do as the directions say and all is fine. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

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