Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #61  
Old 05-07-2018, 07:00 PM
Registered User
 
Join Date: Jun 2011
Posts: 180
Quote:
Originally Posted by ROLLGUY View Post
Many sizes of P.F. condensers are available on ebay. No they are not bolt in replacements, but are universal. But- for only around $60 delivered, a little labor and hardware will get the job done. I think I used a 22" wide by 16" tall in the last W126 I did. A 24"wide may fit as well.....Rich
Thanks Rich, I will do a little looking on eBay.
Reply With Quote
  #63  
Old 05-07-2018, 08:53 PM
Registered User
 
Join Date: Jun 2011
Posts: 180
Looks good! They are out of stock, do you have pictures of one set up car?
greazer2b
Reply With Quote
  #64  
Old 05-07-2018, 09:03 PM
ROLLGUY's Avatar
ROLLGUY
 
Join Date: Oct 2007
Posts: 5,804
Quote:
Originally Posted by greazer2b View Post
Looks good! They are out of stock, do you have pictures of one set up car?
greazer2b
I am sure there are other vendors that have them in stock.
I think there is a photo or two in the PDF Sanden Installation Guide (link in signature in all of my posts). Also, I have done several dual condenser systems, and there should be a thread on one somewhere.
Reply With Quote
  #65  
Old 05-07-2018, 09:18 PM
Registered User
 
Join Date: Jun 2011
Posts: 180
Thanks for pointing in the right direction. I noticed one the vendors was in Des Moines Radiators r us, so when I get back to I town I stop by and see what they have.
Thx again
greazer2b
Reply With Quote
  #66  
Old 05-09-2018, 10:50 AM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
just keeping this thread going as I r&r my AC.

Question about part. I ordered the Egelhof expansion valve from Pelican, part 126-830-03-84-M23

There is a sticker on it that reads "r134" - but i'm not using or converting to r134. Is this part still appropriate for an r12 system?
__________________
Andrew
Montclair, NJ
--------------
1982 300D Turbo
117k
Petrol Blue/Green
Reply With Quote
  #67  
Old 05-09-2018, 11:32 AM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Location: Texas Hill Country
Posts: 3,894
The orifice size is different on a 134a expansion valve and the power unit may be looking for a different head pressure. Short answer, yes, it'll work. Long answer, it's complicated. You may lose some capacity. If the R12 unit is still good, use it.
__________________
'11 Honda Accord EX - "The Daily" 64K
'83 500SL Euro - "The Money Pit" 116K
'86 300SDL - "The Diseasel" 186K
The Diseasel Thread - Everything You Didn't Know You Wanted To Know
Reply With Quote
  #68  
Old 05-09-2018, 11:45 AM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
do they still sell a new part that is specific to r12? i'm just not sure how to test if the existing valve is 100% or not...
__________________
Andrew
Montclair, NJ
--------------
1982 300D Turbo
117k
Petrol Blue/Green
Reply With Quote
  #69  
Old 05-09-2018, 12:22 PM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Location: Texas Hill Country
Posts: 3,894
R12 disappeared in 1994, parts to service it are long gone. Your only source for an R12 replacement is new-old-stock.

The TXV can't really be "tested". If the system wasn't open to the elements, the powerhead wasn't leaking, and the compressor didn't grenade and send shrapnel through the system, it's probably still fine. Install new O-rings after you flush the system and see how it runs.
__________________
'11 Honda Accord EX - "The Daily" 64K
'83 500SL Euro - "The Money Pit" 116K
'86 300SDL - "The Diseasel" 186K
The Diseasel Thread - Everything You Didn't Know You Wanted To Know
Reply With Quote
  #70  
Old 05-09-2018, 12:33 PM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
so I should install o-rings at the 4 connections in/out of the expansion valve? I really cannot say if its been open to air in the past for extended periods of time. It certainly HAS been opened up to atmosphere as of this past Sunday (I pressure tested with compressed air because I intended on replacing drier/valve/compressor. Do you think it would now be damaged based on these few days of being open?

I wouldn't want to fill charge with r12 if I'm going to have to replace this thing afterwards... finding a place to recover/hold r12 for me seems impossible in my area (so far). I didn't realize these available valves were not suited for r12 - bummer.
__________________
Andrew
Montclair, NJ
--------------
1982 300D Turbo
117k
Petrol Blue/Green
Reply With Quote
  #71  
Old 05-10-2018, 01:08 AM
Registered User
 
Join Date: Aug 2010
Location: Sacramento, CA
Posts: 2,456
Be sure to use HBNR O-rings, which are usually green, but sometimes blue or red. I would expect the "R-134A" expansion valve would work fine. Main reason is because of how it works - it varies the opening to maintain a fixed downstream temperature for the evaporator. Some cars (old GM) had just a fixed orifice there. Other reasons are that one can convert from R-12 to R-134A without changing the expansion valve. I use Duracool refrigerant in all my cars now, including my 1996 & 2002 which were originally R-134A. I didn't change the expansion valves or replaced w/ a new listed one, and they all cool fine. Hydrocarbon refrigerants have very similar pressures as R-12 (indeed run slightly lower pressures and more efficient). No need to worry. A good guess as to why it is marked "R-134A" is to assure you that any rubber seals inside are compatible w/ R-134A.
__________________
1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans
Reply With Quote
  #72  
Old 05-10-2018, 10:16 AM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
thanks Bill.

OK - so even if I were to keep the original expansion valve, I'd want to replace the o-rings? I wasn't positive there were o-rings in those connections or not.

If I have the original out and in hand - is there a visual inspection or other kind of basic test I could do in order to ascertain it's working condition?
__________________
Andrew
Montclair, NJ
--------------
1982 300D Turbo
117k
Petrol Blue/Green
Reply With Quote
  #73  
Old 05-11-2018, 12:17 PM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
picked up my 4 seasons reman heavy r4 compressor today. there is a plate over the in/out ports and a sticker mentioning that a few ounces of oil were added.

if guess i'll know when I take the plate off - but if the unit did not come with any sealing washers, would it possibly be the older o-ring type?

I'm going to dump that oil and use my r12 compatible ac oil. I'm just hoping I don't need to hunt down sealing washers now too...
__________________
Andrew
Montclair, NJ
--------------
1982 300D Turbo
117k
Petrol Blue/Green
Reply With Quote
  #74  
Old 05-11-2018, 01:07 PM
ROLLGUY's Avatar
ROLLGUY
 
Join Date: Oct 2007
Posts: 5,804
Quote:
Originally Posted by kuene View Post
picked up my 4 seasons reman heavy r4 compressor today. there is a plate over the in/out ports and a sticker mentioning that a few ounces of oil were added.

if guess i'll know when I take the plate off - but if the unit did not come with any sealing washers, would it possibly be the older o-ring type?

I'm going to dump that oil and use my r12 compatible ac oil. I'm just hoping I don't need to hunt down sealing washers now too...
I believe the heavy compressors were all o ring. When the R4 first came out, they all were o ring, and had the big clutch. The second generation R4 had the washers and the smaller clutch. I am not sure, but it may be possible to get a reman unit with washers or o rings and the heavy clutch.
Reply With Quote
  #75  
Old 05-11-2018, 01:33 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,179
Quote:
Originally Posted by kuene View Post
picked up my 4 seasons reman heavy r4 compressor today. there is a plate over the in/out ports and a sticker mentioning that a few ounces of oil were added.

if guess i'll know when I take the plate off - but if the unit did not come with any sealing washers, would it possibly be the older o-ring type?

I'm going to dump that oil and use my r12 compatible ac oil. I'm just hoping I don't need to hunt down sealing washers now too...
all oils are R12 compatible... but R12 can use mineral oil... 134 can't...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 11:54 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page