Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
Ciadella InteriorsAmerican Auto Wire Classic Industries
Chevs of the 40sDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power WindowsRain Gear Wiper Systems
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



Username Post: 1964 Impala SS A/C        (Topic#351540)
Eric D 
Poster
Posts: 4

Reg: 06-12-18
06-12-18 05:24 PM - Post#2736756    

Hey Guys, Looking for some help if anyone can lead me in right directiuon. I have a 1964 Impala SS with 327/300. The car has factory air. I had motor rebuilt and added a GM performance parts serpentine belt system. Anyways, the air worked great before I removed engine. After putting back in, it came with a R$ type compressor, which the stock manifold bolts to. Any help on hoses to convert to 134A would be great. i read many different things and get different opinions,.



 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Swifster 
Poster
Posts: 22

Loc: Bradenton, FL
Reg: 05-26-18
06-12-18 06:36 PM - Post#2736764    
    In response to Eric D

My understanding is that the only difference between the old R12 systems and newer R134a is the condenser. Newer condensers for R134a have more lines to allow more cooling of the gases. If you run R134a in a stock '64 system the results would be meh. Do you NEED to change the compressor or the evaporator? No. But the larger size of the old compressor would probably kill off using a serpentine belt system.

Tom

1963 Chevrolet ?
$121.00


 
Eric D 
Poster
Posts: 4

Reg: 06-12-18
06-13-18 06:34 AM - Post#2736812    
    In response to Swifster

That makes sesnse. Will the clamped hoses work also?



 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5388
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
06-13-18 07:45 AM - Post#2736816    
    In response to Eric D

It's recommended to replace the hoses because the 134 molecules are smaller than the R12s and they will permeate the R12 hoses.

Verne



 
Tri5man 
Valued Contributor
Posts: 3636
Tri5man
Loc: Possums Crotch, KY
Reg: 06-26-07
06-13-18 09:02 AM - Post#2736828    
    In response to Verne_Frantz

My 63 Impala and my 62 Impala wagon both are factory air cars. Why in the world would anyone want to use 55 year old parts and technology that just doesn't do the job?

Vintage Air Sure Fit Gen lV units is the only way to go. The 63 BelAir in my avatar also has a VA Gen lV unit. No more huge A6 leaking and oil slinging compressors, inefficient evaporators, leaking ducting, worn out seals and binding cables. Spending $1500 for a complete VA A/C, heat and defrost system is a no brainer. Another big advantage is you no longer have to worry about a leaking heater core and hot water valve which has always been a weak link in our cars. There's no reason not to be comfortable while driving our cars.

Gary



 
Eric D 
Poster
Posts: 4

Reg: 06-12-18
06-13-18 12:33 PM - Post#2736843    
    In response to Tri5man

I would replace hoses to new ones, but just checking if clamp type will work with 134a. I want to keep as factory looking as possible.



 
Tri5man 
Valued Contributor
Posts: 3636
Tri5man
Loc: Possums Crotch, KY
Reg: 06-26-07
06-13-18 04:53 PM - Post#2736873    
    In response to Eric D

Don't you think 134a sevicing ports (they are visibly different then stock R12 ports as you know) would look much less stock then 134a hoses and clamps?
None of my cars are stock and worrying about A/C hoses and clamps looking stock to me is like seperating Fly Sh@t from pepper.
Fuction and performance to me is more important then looks.

Gary



 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5388
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
06-13-18 07:23 PM - Post#2736895    
    In response to Tri5man

  • Tri5man Said:
My 63 Impala and my 62 Impala wagon both are factory air cars. Why in the world would anyone want to use 55 year old parts and technology that just doesn't do the job?

Vintage Air Sure Fit Gen lV units is the only way to go. The 63 BelAir in my avatar also has a VA Gen lV unit. No more huge A6 leaking and oil slinging compressors, inefficient evaporators, leaking ducting, worn out seals and binding cables. Spending $1500 for a complete VA A/C, heat and defrost system is a no brainer. Another big advantage is you no longer have to worry about a leaking heater core and hot water valve which has always been a weak link in our cars. There's no reason not to be comfortable while driving our cars.

Gary




Because there's one thing that you can't seem to get through your head. Some people like to keep their cars original. And there's nothing wrong with the original A/C system,

Verne

Even a nitwit will occasionally stumble over the truth, but most of the time he will pick himself up and carry on as if nothing happened.


 
rrausch 
"14th Year" Silver Supporting Member
Posts: 13866
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
06-13-18 08:43 PM - Post#2736913    
    In response to Verne_Frantz

Ditto what Verne says.

1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
models916 
Valued Contributor
Posts: 4783

Age: 67
Loc: Addison, IL
Reg: 05-28-10
06-14-18 06:53 AM - Post#2736936    
    In response to rrausch

I used to use the 12 fittings on the 134 with a fitting adapter. Not sure if we changed the hose or not?



 
Andy4639 
Frequent Contributor
Posts: 1138

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
06-18-18 09:34 AM - Post#2737367    
    In response to Eric D

  • Eric D Said:
I would replace hoses to new ones, but just checking if clamp type will work with 134a. I want to keep as factory looking as possible.



I had all new hoses made up and used new clamps to hold everything together. I had longer hoses made to run behind the fender to clean up the passenger side fender. I used all the factory parts but made for 134-A. I doubled clamped all the connections.



1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
junky 
Valued Contributor
Posts: 2590

Loc: Northeast CT
Reg: 06-27-10
06-18-18 12:23 PM - Post#2737379    
    In response to Andy4639

  • Andy4639 Said:
  • Eric D Said:
I would replace hoses to new ones, but just checking if clamp type will work with 134a. I want to keep as factory looking as possible.



I had all new hoses made up and used new clamps to hold everything together. I had longer hoses made to run behind the fender to clean up the passenger side fender. I used all the factory parts but made for 134-A.
I doubled clamped all the connections.





Totally unnecessary, if you are using the factory clamps with the indexing tab. Push the hose on the barbed fitting to the ring, and then tighten the clamp till you see the rubber start to bulge through the slots of the worm gear clamp, and it is secure. That is the factory recommendation.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
dgstarr 
"2nd Year" Silver Supporting Member
Posts: 52
dgstarr
Loc: Portland, OR
Reg: 04-16-13
06-18-18 01:03 PM - Post#2737385    
    In response to Verne_Frantz

I agree with Verne, my 62 factory air Impala with R-12 works fine. I have tried to keep my car as close to original in appearance as possible.

Dave



 
TorqueWrench 
Poster
Posts: 35

Reg: 12-11-07
06-18-18 01:07 PM - Post#2737386    
    In response to Eric D

Just returned after a long hiatus and saw this question. Here is my two cents based on experience.

The issue is the usually condenser...you really need a parallel flow condenser for R134. Also, at least on the later model 1969 to 1972 Chevelles the POA valve needs recalibration for R134. Check what the story is on your Impala. Last point..on the hoses. You can SOMETIMES get by with the older non barrier hose but at best you are signing up for frequent recharges. The molecules on the 134 are smaller than those in R12 and they will get thru the older non barrier hose. I doubt it is even possible to get non barrier hose anymore. R134 compatible hose has become a universal replacement for both r12 and r134.

People will tell you that they are running r134 in 100% R12 systems with just a change of refrigerant and possibly a change of oil (PAG) but they are likely not getting max cooling and they are looking at more frequent recharges.

The A/C guys in Tampa have this conversion stuff nailed. I would contact them.



 
Andy4639 
Frequent Contributor
Posts: 1138

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
06-18-18 06:31 PM - Post#2737420    
    In response to junky

  • junky Said:
  • Andy4639 Said:
  • Eric D Said:
I would replace hoses to new ones, but just checking if clamp type will work with 134a. I want to keep as factory looking as possible.



I had all new hoses made up and used new clamps to hold everything together. I had longer hoses made to run behind the fender to clean up the passenger side fender. I used all the factory parts but made for 134-A.
I doubled clamped all the connections.





Totally unnecessary, if you are using the factory clamps with the indexing tab. Push the hose on the barbed fitting to the ring, and then tighten the clamp till you see the rubber start to bulge through the slots of the worm gear clamp, and it is secure. That is the factory recommendation.



Maybe but when you drive it like I do I want it to work. I don't want to find out on the road it has come loose.


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
Tri5man 
Valued Contributor
Posts: 3636
Tri5man
Loc: Possums Crotch, KY
Reg: 06-26-07
06-19-18 10:24 AM - Post#2737531    
    In response to Andy4639

Just reread the initial post by Eric D. It appears he's trying to tell us his 64 Impala has an R4 compressor. He typed he had an R$ compressor. If you type in a capital R and continue to hold the shift key down you type in an $ instead of a 4. If thats the case, his car is nowhere close to being a stocker and all the verbage on this post by experts regarding originality totally missed the mark as the car would have come with an A6 compressor.

Gary



 
Dave in VA 
Poster
Posts: 98
Dave in VA
Age: 68
Loc: SW Virginia, USA
Reg: 03-11-18
06-20-18 04:32 AM - Post#2737640    
    In response to Tri5man

Lol. I thought the $ was referring to the cost of R12...

"Knowledge is Good" -- Emil Faber

U S Navy MM2 1970-75 USS Canisteo AO-99, USS Miller DE-1091 (The Champagne of Ships)

1950 Styleline Deluxe 2dr, mostly stock, driver quality...new to me 3/18
2016 Equinox LTZ
2017 Silverado LTZ 6.2


 
Andy4639 
Frequent Contributor
Posts: 1138

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
06-20-18 04:43 AM - Post#2737641    
    In response to Eric D

  • Eric D Said:
Hey Guys, Looking for some help if anyone can lead me in right directiuon. I have a 1964 Impala SS with 327/300. The car has factory air. I had motor rebuilt and added a GM performance parts serpentine belt system. Anyways, the air worked great before I removed engine. After putting back in, it came with a R$ type compressor, which the stock manifold bolts to. Any help on hoses to convert to 134A would be great. i read many different things and get different opinions,.



The whole front end of the motor isn't original. He put serpentine belt on it!Just buy the retro kit and be done.



1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
Tri5man 
Valued Contributor
Posts: 3636
Tri5man
Loc: Possums Crotch, KY
Reg: 06-26-07
06-20-18 06:49 AM - Post#2737653    
    In response to Andy4639

My point exactly.



 
This Forum is Sponsored by
1-800-IMPALAS  *  www.impalas.com
Visit Impala Bob's forum on ChevyTalk
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

862 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.235 seconds.   Total Queries: 16   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 07:34 AM
Top