A/C refresh and/or repair budget
05-04-2018, 02:40 PM
#1
Burning Brakes
Thread Starter
A/C refresh and/or repair budget
Good morning gentlemen, happy Friday to everyone. About the last big functional item on the 1987S for automatic that I pulled out of that hanger in Oregon is that the air conditioning system doesn’t work. Yes, I’m sure other stuff will present itself because I just wrote that, but let’s pretend that I can focus on the air conditioning for minute.
This car sat for about eight years, and I don’t have a history on it before then, but all the parts are there and the compressor turns on but it’s not blowing cold air. I know that it’s impossible to give a tight number because it depends on why I’m not getting cold air, but I was hoping to get some coaching on what would be a reasonable budget given typical experience to get this sorted.
$500, $1000, $1500?
Please don’t tell me to add all those together-grin.
Thanks!
This car sat for about eight years, and I don’t have a history on it before then, but all the parts are there and the compressor turns on but it’s not blowing cold air. I know that it’s impossible to give a tight number because it depends on why I’m not getting cold air, but I was hoping to get some coaching on what would be a reasonable budget given typical experience to get this sorted.
$500, $1000, $1500?
Please don’t tell me to add all those together-grin.
Thanks!
05-04-2018, 03:01 PM
#2
Rennlist Member
Depends who is doing the work.
$50 in orings
$75 in Front/Rear expansion valves
$400 compressor
$50 drier
$$ Barrier hoses at the compressor to rebuild, maybe $$$
$$ to flush it all out
$$ to get new oil and 134 to refill it after vacuum tests compete
Or $50 a can from Roger or somewhere and refill it and go.
$50 in orings
$75 in Front/Rear expansion valves
$400 compressor
$50 drier
$$ Barrier hoses at the compressor to rebuild, maybe $$$
$$ to flush it all out
$$ to get new oil and 134 to refill it after vacuum tests compete
Or $50 a can from Roger or somewhere and refill it and go.
05-04-2018, 03:23 PM
#3
Depends who is doing the work.
$50 in orings
$75 in Front/Rear expansion valves
$400 compressor
$50 drier
$$ Barrier hoses at the compressor to rebuild, maybe $$$
$$ to flush it all out
$$ to get new oil and 134 to refill it after vacuum tests compete
Or $50 a can from Roger or somewhere and refill it and go.
$50 in orings
$75 in Front/Rear expansion valves
$400 compressor
$50 drier
$$ Barrier hoses at the compressor to rebuild, maybe $$$
$$ to flush it all out
$$ to get new oil and 134 to refill it after vacuum tests compete
Or $50 a can from Roger or somewhere and refill it and go.
05-04-2018, 04:29 PM
#4
Three Wheelin'
I am also doing a rehab of the entire AC system this year as well.
To share I have purchased a few parts from Griffiths https://griffiths.com
and a few diy parts from Cool Zone http://www.autoacsystems.com (no affiliation to both).
For example, I know of someone who replaced that long pipe/hose combo on the passenger side that runs from the fuel cooler to the
condenser (I think) a single barrier hose (no pipe) and it has been holding gas for 5 years now.
Fred
To share I have purchased a few parts from Griffiths https://griffiths.com
and a few diy parts from Cool Zone http://www.autoacsystems.com (no affiliation to both).
For example, I know of someone who replaced that long pipe/hose combo on the passenger side that runs from the fuel cooler to the
condenser (I think) a single barrier hose (no pipe) and it has been holding gas for 5 years now.
Fred
Last edited by Koenig-Specials 928; 05-04-2018 at 05:44 PM. Reason: sp
05-04-2018, 05:43 PM
#5
Shameful Thread Killer
Rennlist Member
Rennlist Member
First things first. Who's doing the work? At a shop? Back to perfect? $3000+.
If you are wrenching, then lets go that way. Your compressor is leaking fluid at the nose seal. That seal can be replaced. I've tried three of them, and was successful once. It will save you that $400 'rebuild' charge for the compressor.
Once that's done, evacuate it and see if it will hold vac. Same with pressure using N2. From there, piece by piece. Prolly around $1000 or a bit less.
If you are wrenching, then lets go that way. Your compressor is leaking fluid at the nose seal. That seal can be replaced. I've tried three of them, and was successful once. It will save you that $400 'rebuild' charge for the compressor.
Once that's done, evacuate it and see if it will hold vac. Same with pressure using N2. From there, piece by piece. Prolly around $1000 or a bit less.
05-04-2018, 06:04 PM
#6
you may also have issues with the vacuum system, including diaphragms, vacuum lines, solenoids, solenoid manifold, and more......
for encouragement , I can tell you, I just went thru my vacuum system (PO had already done 134 convert) and the cooling efficiency
of this 28 year old car is incredible.
nice and ice cold!.
for encouragement , I can tell you, I just went thru my vacuum system (PO had already done 134 convert) and the cooling efficiency
of this 28 year old car is incredible.
nice and ice cold!.
05-04-2018, 06:19 PM
#7
Three Wheelin'
If you are replacing the compressor, consider using a genuine Nippondenso reman- done by Nippondenso.
Comes in a blue & gold box, quality is excellent. The white box compressors are hit or miss,
depending on the rebuilder.
Comes in a blue & gold box, quality is excellent. The white box compressors are hit or miss,
depending on the rebuilder.
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05-04-2018, 10:00 PM
#9
05-04-2018, 10:10 PM
#10
Shameful Thread Killer
Rennlist Member
Rennlist Member
I got 38 cents burning a hole in my wallet saying the pump nose seal is leaking. I wonder if it were run for a few hours, the seal would re-seal? Prolly not. I did the one on my every-panel-dented-Focus and it held. The other two - did not.
05-04-2018, 10:13 PM
#11
I’ve only had one that sealed itself and I had dumped a bottle of Red Angel in after messing with it for a few days of trying. Customer was willing to give that a try instead of a replacement compressor. Only been about 6 months so I’m hopeful the stuff worked as advertised. Actually plan on putting some in my car if/when it empties out. It is sort of handy having a few 30lb containers of R-12 sitting around, but it makes one lazy.
05-06-2018, 02:57 AM
#13
Rennlist Member
Unless someone has info that these are not being made any more, I'm pretty sure I got a brand new Denso compressor here:
https://www.densoproducts.com/product.aspx?zpid=10544
The site is not a Denso-owned site but is an authorized reseller. Really great service and the best price I could find. Caveat: I assume it fits but have not yet installed it.
https://www.densoproducts.com/product.aspx?zpid=10544
The site is not a Denso-owned site but is an authorized reseller. Really great service and the best price I could find. Caveat: I assume it fits but have not yet installed it.
05-07-2018, 08:39 AM
#14
Burning Brakes
Thread Starter
Good morning gentlemen -hope everyone had a good weekend.
Would any local A/C specialist be able to pressure test this for me? Any Porsche specific equipement needed?
Would any local A/C specialist be able to pressure test this for me? Any Porsche specific equipement needed?
05-07-2018, 11:01 AM
#15
Rennlist Member
Nothing Porsche-specific about the A/C system. Very standard stuff, and any A/C shop should be able to do that. If you're still R-12 and want to stay that way, make sure they don't run off and convert it to R-134. And if they do, make sure they do it properly and get all the old oil out.
I guess for a pressure test, as long as they have something like nitrogen to use, it should be fine. You don't want them pressure testing it with R-134 if it's R-12, and R-12 is way too expensive to use for that.
I guess for a pressure test, as long as they have something like nitrogen to use, it should be fine. You don't want them pressure testing it with R-134 if it's R-12, and R-12 is way too expensive to use for that.