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#26 |
Registered User
Join Date: Nov 2010
Location: Grand Terrace, Ca.
Posts: 1,607
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Re: AC retrofit questions Old + New
So an A6 compressor is a "pancake" compressor? I don't have any experience with the R4, there is a guy in Georgia making a BB ac bracket using the R4 compressor I was going to buy. Do the R4 compressors have a high failure rate or short lifespan?
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#27 |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,005
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Re: AC retrofit questions Old + New
A-6 is the factory compressor used on our trucks. It is the "long" or axial type. The R4 is the "pancake" style. Here are pics of both. Rebuilt A-6's are total junk....I went through 4 of them. They all leaked at the front seal. If going with an A-6, I recommend buying a brand new unit ($700 or so) or getting a nice used one from a junkyard that is not locked up (about $25). I bought a used one from pick n pull, and it works perfectly.
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#28 | |
Man of Mini-Talents
Join Date: Sep 2009
Location: Oklahoma City, OK
Posts: 4,295
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Re: AC retrofit questions Old + New
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Steve Project - Ruth 66 Skylark Project - Lola 60 Biscayne Project - Iron Ox 54 GMC 100 Project - Darth 69 Camaro |
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#29 | |
Moderator
![]() Join Date: May 2007
Location: Southern Cal
Posts: 20,005
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Re: AC retrofit questions Old + New
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man |
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#30 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: AC retrofit questions Old + New
Digging this up again finally. Have been working on the chassis so just now trying to gather parts for AC again. Clinebarger I am going to take you up on your offer. Several more questions I had: I have read elsewhere that the Sanden 508 is too small for our condensors, do you think that is true? The Sanden 709 is slightly bigger and more expensive but would probably cost more. Or the one I previously noted. Since I have a whole box of real R12 in my garage that is from the 80's and I want a virtual refrigorator I was thinking that I would use the R12. I have a in perfect shape condensor for a 72 so would be handy to be able to use it as long as it is compatible with the Sanden. Also had another question for you: If I never care to use "outside air" for the heating/cooling system (on my DD I have not had it on anything except recirculate for literally years) do I have to retain the door in the cowl or even the door inside the cab? Was thinking that I could maybe fill the door in the cowl and totally remove the door from the kick panel inside. Also if I did that would I even need the vacuum bulb? Does the AC use vacuum anywhere except in the function of changing form recirculating to outside air? Sorry for the ignorance just trying to make everything work for me. Also is this the evaporator core and accumulator you were talking about?
ACDELCO Part # 156513 EVAPORATOR,A/C (W/CASE) [From a 78 Olds 98, about 120 dollars] http://www.rockauto.com/dbphp/prt,315,156513 ACDELCO Part # 151679 ACCUMULATOR,A/C 3.5IN DIA X 9.10IN LG, 1-1/16 OUTLET FITTING [From 77 Chevy C10, about 20 dollars] http://www.rockauto.com/dbphp/prt,315,151679 ACDELCO Part # 151240 ACCUMULATOR,A/C 3.0IN DIA X 8.5IN LG, 5/8 OUTLET FITTING http://www.rockauto.com/dbphp/prt,315,151240 Any idea which of these I will need? Also will I need one of these: FOUR SEASONS Part # 7134209 [From 77 Chevy C10, about 4 dollars] Accum Tube Outlet http://www.rockauto.com/dbphp/x,cata...s_7134209.html
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72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! Last edited by El Campo; 07-26-2012 at 10:48 AM. |
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#31 | |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: AC retrofit questions Old + New
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#32 |
Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: AC retrofit questions Old + New
SD5 Series
Fixed Displacement - 5 Pistons Ear Mount SD5H14 138cc 6000 r.p.m SD5H11 108cc 6000 r.p.m. SD5H09 89cc 6000 r.p.m. I belive the 508 is one of the ones above. (These are all 5 piston compressors) The biggest ones that I could find on the Sanden website were the following: SDV Series Variable displacement - 6 and 7 piston models Displacement can be varied from 5% - 100% for maximum efficiency Displacement internally controlled by pressure valve SD7V16 161.3cc 8000 r.p.m. SD6V12 125cc 8000 r.p.m. And then you have these (the 7 piston compressors) SD7 Series Fixed Displacement - 7 Pistons Direct & Ear Mounts Available Variety of Clutch Configurations Flexible Porting Options SD7H15 154.7cc 6000 r.p.m. SD7H13 129cc 6000 r.p.m. SD7B10 100cc 6000 r.p.m. What do you think? I can build brackets to make anything work! 138cc for the 508 (if I am sorting the R134A numbers out correctly and 154.7cc for the 510. The bad news about the 510 is that I cannot find one that has a serpentine pulley.
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72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! Last edited by El Campo; 07-27-2012 at 10:44 PM. |
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#33 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: AC retrofit questions Old + New
The SD7H15 looks promising, And around the same displacment as a SD510.
A SD5H14/SD508 works OK, But the above compressors will help with you wanting to "hang meat". You can swap the V-belt clutch to a serpentine clutch. |
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#34 |
Registered User
Join Date: Mar 2011
Location: Brandon,Iowa
Posts: 391
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Re: AC retrofit questions Old + New
Suscribed
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#35 |
Senior Member
![]() Join Date: Apr 2001
Location: Alexandria, MN
Posts: 1,462
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Re: AC retrofit questions Old + New
me too...
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63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's |
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