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Username Post: Sanden upgrade        (Topic#347033)
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-07-17 03:29 PM - Post#2706963    

My brother bought a 95 2500 Cheyenne. The AC doesn't work. I need to investigate, but I would guess it is the belly leaker compressor. The guy said he charged it and it worked and leaked off a week later.

My brother is short on cash so I thought about helping me and him at the same time. I have a good R4 compressor. I'd like to sell (or give) it to him and upgrade mine to the Sanden. I know it's been discussed on here, but what is the part number for the one that is a direct fit? The best one is a 5 piston if I remember correctly.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
Low priced Genuine GM Auto Parts
CowboyTrukr 
"6th Year" Silver Supporting Member
Posts: 3757
CowboyTrukr
Loc: Salt Lake City
Reg: 06-20-09
09-08-17 08:08 PM - Post#2707116    
    In response to bowtie44s

Not sure if it's a direct fit, but there's actually a seven piston Sanden.

Greg

'95 K1500 Z71 EC Short Step 5.7L+0.040/NV3500
'00 Explorer XLT 4.0 V6 Auto
'94 K2500 5.7 NV4500 ECLB - SOLD

"The only thing necessary for evil to triumph is for good men to do nothing" Sir Edmund Burke


 
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-09-17 06:46 PM - Post#2707212    
    In response to CowboyTrukr

You probably don't know the part number do you? I remember reading somewhere that the 5 piston was better than the 7. It may have been Vaughn but I haven't seen him on here in a while.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
CowboyTrukr 
"6th Year" Silver Supporting Member
Posts: 3757
CowboyTrukr
Loc: Salt Lake City
Reg: 06-20-09
09-09-17 07:00 PM - Post#2707215    
    In response to bowtie44s

508 comes up with the first search.

Greg

'95 K1500 Z71 EC Short Step 5.7L+0.040/NV3500
'00 Explorer XLT 4.0 V6 Auto
'94 K2500 5.7 NV4500 ECLB - SOLD

"The only thing necessary for evil to triumph is for good men to do nothing" Sir Edmund Burke


 
tcndeb 
Senior Member
Posts: 358

Loc: Texas
Reg: 04-18-04
09-10-17 07:01 AM - Post#2707259    
    In response to bowtie44s

I thought the 95's came with a Sanden SD7H15 from the factory?

'92 Full Size Blazer


 
CowboyTrukr 
"6th Year" Silver Supporting Member
Posts: 3757
CowboyTrukr
Loc: Salt Lake City
Reg: 06-20-09
09-10-17 07:44 AM - Post#2707265    
    In response to tcndeb

Nope. The Harrison R4 was still standard

Greg

'95 K1500 Z71 EC Short Step 5.7L+0.040/NV3500
'00 Explorer XLT 4.0 V6 Auto
'94 K2500 5.7 NV4500 ECLB - SOLD

"The only thing necessary for evil to triumph is for good men to do nothing" Sir Edmund Burke


 
tcndeb 
Senior Member
Posts: 358

Loc: Texas
Reg: 04-18-04
09-10-17 01:44 PM - Post#2707303    
    In response to CowboyTrukr

I got the Sanden upgrade from Classic Industries for my Blazer. It comes with all the hoses, o-rings, brackets and a dryer, or whatever they call that thing on the firewall. Did all the work myself except charging. Since my system never crashed, I just wanted to upgrade to 134, I kept my condenser and evaporator and just cleaned them real well with cleaner made for that stuff. I can run 39° at the center vent on recirc, 35° if I valve off my heater core line.

'92 Full Size Blazer


 
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-10-17 04:14 PM - Post#2707314    
    In response to tcndeb

My brother's 95 looks just like the R4 in my 88. 95 was originally R134A. 88 was R12 but has been converted to 134.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-11-17 03:41 AM - Post#2707356    
    In response to bowtie44s

I just did the conversion on '95 GMC Jimmy
http://www.chevytalk.org/fusionbb/showtopic.php?ti...

Use an SD7HD. It bolts right in with a bracket kit. An SD5 is too old. SD7HD are built for R134.

The lower R4 bolt is used with an included spacer in the bracket it. The other side is two single half moon brackets. The front one uses a spacer. I had my 1 year new hoses cut and fitted. Depending on where you get it, you might be able to get the R4 back side to make it bolt on application. I preferred the single hose connections. It made it easier to route around other engine bay parts.


If your brother's system worked for a while then leak, it's the valve stems leaking. I've replaced more of them than compressors. Replace the valve stems and pump it down 45 min. If it holds vac, the system is good to recharge.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-11-17 03:42 AM - Post#2707357    
    In response to gchemist



Attachment: R2.jpg (103.92 KB) 5 View(s)


SD7HD with a 90" belt.


'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-11-17 07:01 AM - Post#2707374    
    In response to gchemist



Attachment: fullinstall.jpg (115.35 KB) 6 View(s)


SD7HD full installation.


'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-11-17 08:18 AM - Post#2707386    
    In response to gchemist

Maybe his is just the valve. I still want to switch mine to Sanden. Did you notice a difference in vent temp? Mine usually blows around 50°. Where did you get your bracket kit?

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-11-17 08:29 AM - Post#2707387    
    In response to bowtie44s

My local A/C rebuild shop had it in stock. It was made by an aftermarket supplier. I'll post the part number later. I need a cooking thermometer to stick in the vent. It's colder than the R4. The only part not upgraded was the condenser.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
tcndeb 
Senior Member
Posts: 358

Loc: Texas
Reg: 04-18-04
09-12-17 04:16 AM - Post#2707461    
    In response to bowtie44s

When I upgraded to the Sanden I was advised to switch out the variable orifice tube for a red Ford orifice tube. I don't know if that was a big deal or not but I was pulling 39 degrees at the vent all summer in Austin, even when it was 100 degrees outside.

'92 Full Size Blazer


 
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-12-17 05:47 AM - Post#2707471    
    In response to tcndeb

I went to 3 parts stores and asked for a red Ford orifice tube and no one had a clue what I was talking about.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-12-17 06:58 AM - Post#2707476    
    In response to bowtie44s

Part Number YG346 should fit. Counter people are only as smart as their computer. No input no output.


When I do my C10 upgrade, I'll install the red one too.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


Edited by gchemist on 09-12-17 07:00 AM. Reason for edit: No reason given.

 
tcndeb 
Senior Member
Posts: 358

Loc: Texas
Reg: 04-18-04
09-12-17 09:55 AM - Post#2707485    
    In response to gchemist

  • gchemist Said:
Part Number YG346 should fit. Counter people are only as smart as their computer. No input no output.


When I do my C10 upgrade, I'll install the red one too.




Right! When I asked the counter guy in Elgin for the red Ford tube the first thing he said was "are you doing the 134 upgrade on your Chevy?" He knew exactly what I was after and why I wanted it.
It's kind of sad that running into a good parts guy is cause for celebration.

'92 Full Size Blazer


 
bowtie44s 
Valued Contributor
Posts: 3739
bowtie44s
Age: 34
Loc: wv
Reg: 08-29-12
09-12-17 05:23 PM - Post#2707514    
    In response to tcndeb

  • tcndeb Said:
It's kind of sad that running into a good parts guy is cause for celebration.



There was one at autozone of all places. He had every small block part memorized. He never looked at the computer, he just went back and got it. I haven't seen him for years. I'm sure he went to a much more meaningful job. They should have paid him more than minimum wage. He was the reason I went there along with several of my friends.

Jeff

'88 Chevy K3500, aluminum head roller cam 511in³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap


Edited by bowtie44s on 09-12-17 05:25 PM. Reason for edit: No reason given.

 
gchemist 
Senior Chevytalk Moderator
Posts: 24157
gchemist
Loc: Austin, TX 78748
Reg: 05-09-00
09-13-17 03:56 AM - Post#2707541    
    In response to bowtie44s

A good counter guy is hard to find. I learned about A/C systems from a parts guy who recommended someone that did side jobs. I've watch him do several jobs while helping. Now I have my own vac and gauges to do A/C work myself.

'95 Jimmy SLT (Bought @131,814)
'83 Silverardo XST - ZZ4 powered
'96 GMC Jimmy LS Ret. @236651 miles


 
Low priced Genuine GM Auto Parts
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