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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 09-26-2003, 01:58 AM
Registered User
 
Join Date: Mar 2003
Location: Houston, Texas USA
Posts: 59
1984 3090 Sd Freon

What is the advantage in converting to the new refrigerant>
__________________
Jacob Wissler Jr., Houston, Texas, 1984 300 SD
Reply With Quote
  #2  
Old 09-26-2003, 02:00 AM
Registered User
 
Join Date: Mar 2003
Location: Houston, Texas USA
Posts: 59
Typo

That was supposed to say 300 SD
__________________
Jacob Wissler Jr., Houston, Texas, 1984 300 SD
Reply With Quote
  #3  
Old 09-26-2003, 02:18 AM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 19,743
It's cheap to refill, but not worth the savings. Plus you live in Houston? Good luck!

Sixto
95 S420
91 300SE
87 300SDL
83 300SD
Reply With Quote
  #4  
Old 09-26-2003, 11:39 AM
Registered User
 
Join Date: Mar 2003
Location: Houston, Texas USA
Posts: 59
300 SD Freon

OK, explain to me, what does being in Houston have to do with it? What are the advantages / disadvantages to the new stuff?
__________________
Jacob Wissler Jr., Houston, Texas, 1984 300 SD
Reply With Quote
  #5  
Old 09-26-2003, 03:03 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 19,743
None of the alternative refrigerants are as efficient as R12 in an AC system designed for R12. I don't mean just fittings, I mean evaporator and expansion valve sizing, etc. I have R134a in the SDL. It's okay through 90F. Feels more like a swamp cooler than true AC above 100F; takes forever to cool and the blower never goes below max. I have R12 in the SE and the blower will turn down after a while. The S420 has a proper R134a system and 100F days aren't a problem. YMMV. Some folks say their R134a conversion is every bit as good as R12. I wouldn't chance it in a place at hot and humid as Houston.

Advantages - if your system has a simple to fix leak, you can fill with R134a for cheap or even do it yourself. If you're replacing the evaporator or compressor, the cost of R12 is small compared to the overall cost of the job unless you do it yourself.

Disadvantages - R134a is not as efficient a refiregerant as R12.

Ping Larry Bible. He can give you the full scoop. He might even have advice on how to make R134 work as well as R12.

Sixto
95 S420
91 300SE
87 300SDL
83 300SD
Reply With Quote
  #6  
Old 09-26-2003, 06:01 PM
engatwork's Avatar
busy
 
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 11,773
LOL

Quote:
how to make R134 work as well as R12.
sixto - you have been around long enough to know what Larry is going to tell him.

Jacob - do a search on this site. You will regret going to 134 in Houston on one of these cars. I live in a similar climate and I have converted two BACK to r12 and have been very happy with the reverse conversion. One of them is on a black 300D. I have seen the inside temp indicator be at around 125dF in August and the r12 does a good job of getting it comfortable in a fairly timely manner.
__________________
Jim
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 12:37 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page