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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: Magic1 on May 28, 2015, 11:47:12 am

Title: Ac repair or replace
Post by: Magic1 on May 28, 2015, 11:47:12 am
Hey y'all. Been working on my 82 gmc Sierra k10 for a while and getting close to the finish line. It was stripped of all the ac hardware when I got it. No compressor, accumulator, vacuum lines, etc. I've decided since I've put so much work into redoing this truck that I wanna be able to drive it comfortably year round so I want to get ac in it. I never had a chance to ride in one of these square body chevys that had functioning factory air conditioning so I don't know how well (cold)  they were. I'm wondering how cost effective it is to try and repair/replace what I have vs getting a complete new system such as a vintage air sure fit kit.  They're around 1400$ from what I've looked at. If anyone has one of these trucks with proper working ac or has done a vintage air system in their's, I'd love to hear about any advice you have or can give on the pros and cons of either. Thanks
Title: Re: Ac repair or replace
Post by: LTZ C20 on May 28, 2015, 02:02:09 pm
The systems in these trucks, when working properly, work very well. My friend has a 79 GMC High Sierra K25, all factory a/c, blows ice cubes. I have a 73 Chevy Cheyenne C20, all a/c parts in dash are factory, lines and compressor are newer because of the serpentine system I put on, those parts are from a 95 chevy adapted to my system, blows so cold I have to turn it down after 10 min.

As long as it's done right and proper, you should be very pleased.
Title: Re: Ac repair or replace
Post by: Magic1 on May 28, 2015, 03:11:48 pm
Thanks buddy. Now for the million dollar question. Lol. Wonder if I can buy all the parts needed such as compressor, condenser, evaporator, dryer and such and install it myself for much under the price of a modern day full ac kit?
Title: Re: Ac repair or replace
Post by: fxrsrider on May 28, 2015, 05:10:29 pm
This is a ballpark estimate/comparison that I came up with about a month ago for my '75 C10.  Link to the post is below.

Restore & Upgrade to R134a:
(figures include tax and shipping or cost of gas for will call)
Condenser, Drier, Drier/Accumulator Tube: $125
Hoses (x3): $240
Evaporator: $125
Controller: $80
Sanden Compressor: $225
Switches & Sensors: $ 80
Misc: $50
= $925

Aftermarket System (complete):
=$1300


Aftermarket System (partial) + purchase and install my own outsourced parts:
Aftermarket evaporator and servo package: $800
Condenser, Drier, Drier/Accumulator Tube: $125
Hoses (x3): $240
=$1165

http://forum.73-87chevytrucks.com/smforum/index.php?topic=30939.0 (http://forum.73-87chevytrucks.com/smforum/index.php?topic=30939.0)
Title: Re: Ac repair or replace
Post by: LTZ C20 on May 28, 2015, 05:12:06 pm
Yes you can. There are many places that offer pretty much all the pieces you will need, including auto parts starts and resto parts companies, this site store might have some stuff and depending on what it is, you might be able to get it at a junk yard, but that's only if you need to and would be my last place to look. Things like accumulators, compressors, lines, condensers I would get new, if you need the heater cases and such, that would be good from a parts yard but only if you can find them new or used good condition such as ebay or craigslist.

Make and post a list of the parts you need, we can start to get a handle on everything needed.
Title: Re: Ac repair or replace
Post by: Magic1 on May 29, 2015, 05:39:03 pm
OK guys. Appreciate the comments and will try and get a general list together as soon as I can and add to the thread of everything I'll need.
Title: Re: Ac repair or replace
Post by: LTZ C20 on May 30, 2015, 12:43:09 am
Cool deal
Title: Re: Ac repair or replace
Post by: Magic1 on May 30, 2015, 07:18:45 pm
Alright the best I can tell I'm gonna need everything basically under the hood. Compressor and bracket, condenser, lines etc. In the cab everything is there I believe with the exception of the vacuum lines. Whoever had this thing before me really did a number on it. I guess when something quit working they just cut and pitched. The vacuum plug on the back of the control panel is there but the line just hangs loose disconnected under the dash. Sorry if the post seems kinda vague but I think basically it's everything under hood. The accumulator is still there but if I'm gonna replace everything else I may as well swap it too.
Title: Re: Ac repair or replace
Post by: LTZ C20 on May 31, 2015, 01:49:32 am
Well that's a good place to start. Do you have pictures, those would really help make sure you get everything you need. Replacing the accumulator is a no brainer, they dry up inside if they sit to long exposed to the open air.
Title: Re: Ac repair or replace
Post by: Magic1 on June 02, 2015, 12:21:16 am
Pictures? Like pictures of the engine compartment? There's not too much to take pictures of. Lol. From the accumulator out there's nothing there. It's like whoever had it previously just unhooked the lines on the accumulator and pulled everything off air conditioning related and chucked it.
Title: Re: Ac repair or replace
Post by: LTZ C20 on June 02, 2015, 08:12:43 am
Pictures? Like pictures of the engine compartment? There's not too much to take pictures of. Lol. From the accumulator out there's nothing there. It's like whoever had it previously just unhooked the lines on the accumulator and pulled everything off air conditioning related and chucked it.
Yes.
Title: Re: Ac repair or replace
Post by: Magic1 on June 02, 2015, 12:58:16 pm
At work right now. I'll try and take a few when I get in and upload them to the post.
Title: Re: Ac repair or replace
Post by: LTZ C20 on June 02, 2015, 01:33:37 pm
No problem.
Title: Re: Ac repair or replace
Post by: RAD77C10 on June 03, 2015, 12:55:06 am
I do commercial HVAC&R for a living, make sure you have accumulator & evap. flushed well! Moisture & dirt will kill a new system! I would go with a new compressor, condenser, drier & refrigerant lines! If the accum. has been open for awhile, change that too. 
Title: Re: Ac repair or replace
Post by: Magic1 on June 04, 2015, 09:21:26 pm
Hmm. Took a few pics on my phone and tried uploading them but even trying to do it individually it says file too large.
Title: Re: Ac repair or replace
Post by: Magic1 on June 04, 2015, 09:48:55 pm
Figured it out. If you need more pics let me know.  I tried to show where the bracket would go and what's left of everything.
Title: Re: Ac repair or replace
Post by: LTZ C20 on June 04, 2015, 10:40:51 pm
Yea your gonna need to replace that accumulator for sure.
Title: Re: Ac repair or replace
Post by: RAD77C10 on June 05, 2015, 12:04:59 am
DITTO THAT!
Title: Re: Ac repair or replace
Post by: Magic1 on June 05, 2015, 12:21:15 am
Lol. Told ya. I don't know if whoever had it before me was trying to save weight or what(sarcasm). Hahaha. It's like when something broke, they just cut it off and pitched it.