87 A/C into 71 done - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Katrina/10 · 01-05-2013, 04:35 PM

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All air conditioning lines and wiring connected, heater hoses routed. I will take the inner fender back out and paint it.

Gary

ETsC10 · 01-05-2013, 06:44 PM

Nice work

**Palf70Step** · 01-05-2013, 07:15 PM

hugger6933 · 01-05-2013, 07:23 PM

Very resourceful!! Great idea.

Andy4639 · 01-05-2013, 07:50 PM

That reminds me of another truck.

Katrina/10 · 01-06-2013, 11:24 AM

Thanks, I tried to use as much of the 87 stuff as I could, the hoses and lines seem to fit the earlier model truck pretty well.

dyrt · 01-07-2013, 09:18 AM

Very nice work. What kind of details can you give? What parts from the 87 were you actually able to use? What parts did you have to use from your own truck and what kind of mods are required? I am replacing my non a/c cab with an a/c cab due to rot and this could be the cheapest route if i could use most of the parts from a later model. Any info would be much appreciated!

motorcritter · 02-01-2013, 06:30 PM

This is the route I want to go for my '70 C10- it is non/AC, but I've got a '69 AC donor for the boxes, controls, ducting and wiring. I figure I would use square-body critical components (condenser, evap coil, piping/hoses, accumulator) too. What compressor is a good one for the conversion. I've got pretty much a clean slate for what I do, and a good bit of AC experience from my days working in FL.

Nice work, both Katrina/10 and Andy4639! I searched the board earlier, and spotted Andy's set-up, it at least showed me it was possible, and my own measurements seemed to bear the possibility out. Now, to the wrenches!
Posted via Mobile Device

Katrina/10 · 02-01-2013, 07:15 PM

[QUOTE=motorcritter;5861076]This is the route I want to go for my '70 C10- it is non/AC, but I've got a '69 AC donor for the boxes, controls, ducting and wiring. I figure I would use square-body critical components (condenser, evap coil, piping/hoses, accumulator) too. What compressor is a good one for the conversion. I've got pretty much a clean slate for what I do, and a good bit of AC experience from my days working in FL.

I used a universal condenser, not the square body style, because I figured it would be easier to install. The 87 truck stuff is what I used on the motor, which is an R4 compressor. The 84 and earlier trucks use a different compressor clocking and hard tubes, which don't seem to interchange as well.

Andy4639 · 02-01-2013, 09:00 PM

You could use the compressor of the donor truck. Are at least a new one just like it. I didn't because I thought the old one would work. Then after the 2nd one I bought the upgrade kit from Vintage air with 134 A components along with hoses and compressor with mounts.
I to had a non AC cab and converted it myself.

Katrina/10,
I would like to know how you wired the compressor up just to compare notes for the cycling effect. How long does your's run before cycling. I had to play with the fitting on the acumalator to get mine to cycle. About every 8 minutes are so is what I left it at.

Katrina/10 · 02-02-2013, 09:26 AM

[I would like to know how you wired the compressor up just to compare notes for the cycling effect. How long does your's run before cycling. I had to play with the fitting on the acumalator to get mine to cycle. About every 8 minutes are so is what I left it at.[/COLOR][/B]

[/QUOTE]

All I did for that was cut the original compressor clutch wire and splice in the low side pressure switch on the accumulator. The other side of the switch I added new wire to go to compressor, now located on the driver's side.

Cycling varies widely depending on fan speed and outside temperature. If it's really hot, not much cycling.

Andy4639 · 02-02-2013, 09:54 AM

Quote:

Originally Posted by Katrina/10

[I would like to know how you wired the compressor up just to compare notes for the cycling effect. How long does your's run before cycling. I had to play with the fitting on the acumalator to get mine to cycle. About every 8 minutes are so is what I left it at.[/COLOR][/B]

All I did for that was cut the original compressor clutch wire and splice in the low side pressure switch on the accumulator. The other side of the switch I added new wire to go to compressor, now located on the driver's side.

Cycling varies widely depending on fan speed and outside temperature. If it's really hot, not much cycling.[/QUOTE]

Thanks,
I did it right then! Lol...

LOW DOUGH · 02-26-2013, 09:06 AM

Good info. I'm wanting to do this in mine
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motorcritter · 02-26-2013, 10:16 AM

Katrina/10, I was going to use a new style condensor- like a Ford (laminar flow) to get more efficiency on that side. I am looking at using a high-capacity compressor, like a Sanden, Sankyo or Denso. The old R4 is handy, but there's better ones out there. A serpentine belts setup from an S10, and it ought to be like a meat locker in the cab!
Posted via Mobile Device

Katrina/10 · 02-27-2013, 10:29 AM

I used an aftermarket 14x25" condenser which has the improved flow you mentioned. I believe I bought it from Nostalgic Air Parts for about 80 bucks. I bought several other things from them to finish the project, got good customer service.

LOW DOUGH · 04-27-2013, 05:59 PM

Katrina/10. It's starting to get warm out. How's it working for you?
Posted via Mobile Device

ole dollor · 04-27-2013, 09:59 PM

i think you did a great job....i like it a lot....coooool.

01-05-2013, 04:35 PM	#1
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	87 A/C into 71 done http:// All air conditioning lines and wiring connected, heater hoses routed. I will take the inner fender back out and paint it. Gary __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

01-05-2013, 06:44 PM	#2
ETsC10 Hand Crafted C-10 Join Date: Aug 2006 Location: Burien, WA Posts: 5,180	Re: 87 A/C into 71 done Nice work

01-05-2013, 07:15 PM	#3
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,082	Re: 87 A/C into 71 done __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

01-05-2013, 07:23 PM	#4
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,279	Re: 87 A/C into 71 done Very resourceful!! Great idea.

01-05-2013, 07:50 PM	#5
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: 87 A/C into 71 done That reminds me of another truck. __________________ 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.

01-06-2013, 11:24 AM	#6
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: 87 A/C into 71 done Thanks, I tried to use as much of the 87 stuff as I could, the hoses and lines seem to fit the earlier model truck pretty well. __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

01-07-2013, 09:18 AM	#7
dyrt Registered User Join Date: Jul 2007 Location: Yardville, NJ Posts: 144	Re: 87 A/C into 71 done Very nice work. What kind of details can you give? What parts from the 87 were you actually able to use? What parts did you have to use from your own truck and what kind of mods are required? I am replacing my non a/c cab with an a/c cab due to rot and this could be the cheapest route if i could use most of the parts from a later model. Any info would be much appreciated!

02-01-2013, 06:30 PM	#8
motorcritter Registered User Join Date: Mar 2012 Location: Boulder, CO Posts: 350	Re: 87 A/C into 71 done This is the route I want to go for my '70 C10- it is non/AC, but I've got a '69 AC donor for the boxes, controls, ducting and wiring. I figure I would use square-body critical components (condenser, evap coil, piping/hoses, accumulator) too. What compressor is a good one for the conversion. I've got pretty much a clean slate for what I do, and a good bit of AC experience from my days working in FL. Nice work, both Katrina/10 and Andy4639! I searched the board earlier, and spotted Andy's set-up, it at least showed me it was possible, and my own measurements seemed to bear the possibility out. Now, to the wrenches! Posted via Mobile Device __________________ If 'that which does not kill me, makes me stronger', then I should be Superman by now!

02-01-2013, 07:15 PM	#9
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: 87 A/C into 71 done [QUOTE=motorcritter;5861076]This is the route I want to go for my '70 C10- it is non/AC, but I've got a '69 AC donor for the boxes, controls, ducting and wiring. I figure I would use square-body critical components (condenser, evap coil, piping/hoses, accumulator) too. What compressor is a good one for the conversion. I've got pretty much a clean slate for what I do, and a good bit of AC experience from my days working in FL. I used a universal condenser, not the square body style, because I figured it would be easier to install. The 87 truck stuff is what I used on the motor, which is an R4 compressor. The 84 and earlier trucks use a different compressor clocking and hard tubes, which don't seem to interchange as well. __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

02-01-2013, 09:00 PM	#10
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: 87 A/C into 71 done You could use the compressor of the donor truck. Are at least a new one just like it. I didn't because I thought the old one would work. Then after the 2nd one I bought the upgrade kit from Vintage air with 134 A components along with hoses and compressor with mounts. I to had a non AC cab and converted it myself. Katrina/10, I would like to know how you wired the compressor up just to compare notes for the cycling effect. How long does your's run before cycling. I had to play with the fitting on the acumalator to get mine to cycle. About every 8 minutes are so is what I left it at. __________________ 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.

02-02-2013, 09:26 AM	#11
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: 87 A/C into 71 done [I would like to know how you wired the compressor up just to compare notes for the cycling effect. How long does your's run before cycling. I had to play with the fitting on the acumalator to get mine to cycle. About every 8 minutes are so is what I left it at.[/COLOR][/B][/QUOTE] All I did for that was cut the original compressor clutch wire and splice in the low side pressure switch on the accumulator. The other side of the switch I added new wire to go to compressor, now located on the driver's side. Cycling varies widely depending on fan speed and outside temperature. If it's really hot, not much cycling. __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

02-26-2013, 09:06 AM	#13
LOW DOUGH I'M TRUCK CRAZY! Join Date: Oct 2006 Location: Sachse, TEXAS Posts: 1,737	Re: 87 A/C into 71 done Good info. I'm wanting to do this in mine Posted via Mobile Device

02-26-2013, 10:16 AM	#14
motorcritter Registered User Join Date: Mar 2012 Location: Boulder, CO Posts: 350	Re: 87 A/C into 71 done Katrina/10, I was going to use a new style condensor- like a Ford (laminar flow) to get more efficiency on that side. I am looking at using a high-capacity compressor, like a Sanden, Sankyo or Denso. The old R4 is handy, but there's better ones out there. A serpentine belts setup from an S10, and it ought to be like a meat locker in the cab! Posted via Mobile Device __________________ If 'that which does not kill me, makes me stronger', then I should be Superman by now!

02-27-2013, 10:29 AM	#15
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: 87 A/C into 71 done I used an aftermarket 14x25" condenser which has the improved flow you mentioned. I believe I bought it from Nostalgic Air Parts for about 80 bucks. I bought several other things from them to finish the project, got good customer service. __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

04-27-2013, 05:59 PM	#16
LOW DOUGH I'M TRUCK CRAZY! Join Date: Oct 2006 Location: Sachse, TEXAS Posts: 1,737	Re: 87 A/C into 71 done Katrina/10. It's starting to get warm out. How's it working for you? Posted via Mobile Device



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04-27-2013, 09:59 PM	#17
ole dollor Registered User Join Date: May 2012 Location: Anton, Texas Posts: 2,364	Re: 87 A/C into 71 done i think you did a great job....i like it a lot....coooool.

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