|
|
|
|
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
I've got some really dumb AC questions for a patient person (w115)
Hi Folks,
The york compressor in my 220D (worked fine last summer) leaked out all its lubricant/refrigerant. I removed it and have a new sanden/bracket ready to install, as well as a new receiver dryer. Do I need to have new hoses made or purchase any fittings? or do the old hoses connect to the new sanden unit? Are there any other parts I should replace? Not looking to break the bank- thinking I'll flush the system and put in some R 134. |
#2
|
|||
|
|||
Replace your expansion valve/orings if you can.
I believe the original/oem system works best and York compressors can be rebuilt. https://www.youtube.com/watch?v=6Qmsm12oo18
__________________
1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber |
#3
|
||||
|
||||
Quote:
__________________
Jim |
#4
|
|||
|
|||
I tried R-134 in a W123 and found it to be quite unsatisfactory. Went back to R-12 with far better results.
__________________
When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl. |
#5
|
||||
|
||||
Success with 134a depends on the condenser and aux-fan arrangement. More condenser and more airflow is required to get good performance. If you have the original coil and fan setup, stick with R12 or use one of the hotly-debated alternatives.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#6
|
|||
|
|||
I have a Mercedes condenser (built in 2014), original fan, orings replaced all over, suction line/crush washers replaced, new expansion valve, new drier (BEHR) and a Spectra Premium A/C Compressor off of r ockauto
System was tested for leaks, vacuumed for over an hour, filled with R134a (2.6lbs) and works perfect on the hottest days. It may take 45 seconds-1 minutes longer to get to ambient cooling temperature but I assure you, it's the same temp coming out of the vents at idle after a minute then R12. Let's measure and go on the data however - If someone here can measure their vent temps with an true R12 system, I will compare my results and I assure you, they are the same. I have a 1985 300D W123. Stay away from R12 it's terrible for the environment.
__________________
1976 Mercedes 240D (Sold) 1985 Mercedes 300D Turbo Diesel: 500,000KM 1986 Mercedes 300E (Sold) 1988 Mercedes 300E (Sold) 2002 Mercedes C240 (Sold) 2008 Mercedes C350 4matic A great site for purchasing industrial rubber products! Industrial Rubber |
#7
|
|||
|
|||
From my own experience I say don’t even waste your time with r134 in York compressor.
Also, york compressors have an oil sump. So, you probably lost some oil with your refrigerant leak but not nearly all.
__________________
Current fleet 2006 E320 CDI 1992 300D - 5speed manual swapped former members 1984 300D "Blues Mobile" 1978 300CD "El Toro" |
#8
|
||||
|
||||
Quote:
IMPORTANT: Any new compressor will most likely be filled with PAG oil for use with R134a. If you are using R134a, no problem. If R12, the compressor must be drained of all the oil and proper oil installed. I like Ester oil for R12, or R134a, but most use PAG for R134a. If you get an older or NOS Sanden, it is best to drain it anyway, and start from scratch with the proper oil.
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#9
|
||||
|
||||
How hard is it to convert a system back to R12?
When it's over 90° here, my new R134 system struggles unless I'm barreling down the highway for 30+ minutes. |
#10
|
||||
|
||||
Quote:
Charging a converted system is an art, not a science. If you just dump in a weighed amount that some Internet armchair "expert" claimed was right, you'll be wrong, guaranteed. You'll be under or overcharged, neither of which lend themselves to good cooling.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#11
|
||||
|
||||
Everything needs to be flushed (not the compressor though), and new oil installed (mineral or Ester for R12). The compressor needs to be drained well. Of course the fittings need to be for R12, and the drier replaced.
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#12
|
|||
|
|||
Sandens come with many different rear heads. Check ebay. You can swap heads for $20. There is also a universal head which has adapters. I recall one is for the uncommon Ford ports (Roto-lock or such) which were on their Yorks. I don't know what ports M-B Yorks had. But, your hoses probably have old rubber, so why not make new hoses and put a fitting at the Sanden ends to match the standard today which is #6 O-ring for outlet and #8 O-ring for suction. Recover your M-B fittings to use on the other side (hacksaw the ferrule and bend off). A shop can crimp new ferrules or you can buy Oeticker stepless ear clamps on ebay. I suggest "reduced barrier" AC hose. You can get Sanden heads with those ports on the top (most common) or end.
BTW, are you using the common "York to Sanden" adapter bracket? It would bolt to your existing York bracket and has curved slots to tension the Sanden belt. I have one I was going to use on one of my Mopars, but changed my mind. I thought it was aluminum in the ebay ad, but someone just painted it silver so is still a bit heavy. Anyway, PM if you want it cheap. I use HC refrigerant (Duracool) in all my 7 vehicles. PAO 68 oil (Hella) is best for any refrigerant and compatible with all. But, first read all the fears from people who know nothing about combustion all over the internet about HC being "explosive".
__________________
1984 & 1985 CA 300D's 1964 & 65 Mopar's - Valiant, Dart, Newport 1996 & 2002 Chrysler minivans |
#13
|
||||
|
||||
Quote:
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
#14
|
|||
|
|||
thanks for all the input guys!
just to update - I replaced the york with a rebuilt york unit. I decided to get the AC in the 220D going as cost efficiently as possible since I would rather upgrade my much nicer W123 to a sanden and replace all the AC components along with it so it's all done correctly. I care much more about that vehicle lol Just about have everything together and hit a snag though the tensioning pulley that bolts to the massive york AC bracket has stripped its threads! Weird thing was I wasn't even tightening it that hard... I'll try and use a threaded insert on that today and let you all know how its working. |
#15
|
||||
|
||||
Quote:
|
Bookmarks |
|
|