| Author |
Message |
skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16863
Location: sticksville, ct.
|
 Posted: Thu Jul 29, 2021 7:12 pm Post subject: Re: Flushing PAG from new AC compressor to use mineral oil |
 |
|
| syncro surf wrote: |
Skills - do you know of an appropriate solvent?
Thanks |
this
https://www.napaonline.com/en/p/TEM419955?cid=paid...aw.ds&
or DURA flush solvent.
problem with brake cleaners is it doesn't flash off quick and you can go out the next day and pour it out.
DURA (now DURA 2) would about boil at room temp. the shit was evil but worked real good.
that is what we used doing retrofits at the dealer and if a customer wouldn't spring for a whole new system if the compressor blew chunks into the system we'd flush it with that stuff
brake clean can work, no doubt but be VERY careful you don't have ANY trace of it in the components. even a small amount will strip the lubricity out of the oil and/or mix and make poo
_________________
| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
|
|
| Back to top |
|
 |
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
skills@eurocarsplus
Samba Peckerhead
Joined: January 01, 2007
Posts: 16863
Location: sticksville, ct.
|
| Posted: Fri Jul 30, 2021 7:57 am Post subject: Re: Flushing PAG from new AC compressor to use mineral oil |
|
|
| djkeev wrote: |
And more........
Sanden does not seem concerned about minimal mineral oil being in the compressor when switching to PAG ....... if they are not concerned, you need not worry either.
I'd be trusting Sanden over local wrench turners opinions.
|
sanden also sells compressors, and denies warranty claims.
whatever....he asked for opinions and i gave mine after being a tech for 30+ years now.
if you brought it to me....i spelled out exactly how i would do it. you never know who has done what to these old systems at this stage in the game.
dunno...guess spending more than 1/3 of my life in dealerships i have had "cover you ass" pounded into my head.
some have the "send it" mentality....that line of thought has never worked favorably for me
_________________
| gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
| Jake Raby wrote: |
| Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
| Brian wrote: |
| Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
syncro surf
Samba Member
Joined: June 06, 2017
Posts: 189
Location: Maine
|
| Posted: Fri Jul 30, 2021 3:28 pm Post subject: Re: Flushing PAG from new AC compressor to use mineral oil |
|
|
Thanks everyone for the very helpful perspectives. The only problem I see with looking at Sanden's advice is that they are talking about small amounts of mineral oil in PAG. It does not necessarily follow that small amounts of PAG in mineral oil will behave the same.
From all my reading about oil from various sites (which involves a lot of reading between the lines) I feel like I probably could "send it" with what I've done and be fine. But it seems like everyone here who has done this has flushed with a solvent. Nobody has spoken up who has actually flushed with just mineral oil successfully. As everything in my system, with the exception of the evaporator is new, I'm not sure I want to be the guinea pig.
Harry Callahan's looking at me "You gotta ask yourself one question - do you feel lucky? Well do you punk?" |
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32584
Location: Reading Pennsylvania
|
|
| Back to top |
|
|
Farf
Samba Member
Joined: July 12, 2009
Posts: 463
Location: Colorado
|
| Posted: Fri Jul 30, 2021 5:56 pm Post subject: Re: Flushing PAG from new AC compressor to use mineral oil |
|
|
| The mixing of a trace amount of PAG with mineral oil will not form a gel or sludge. It's more about the type of oil and its ability to mix with the refrigerant (miscibility). Since you are using RedTek you have no issues to concern yourself with. |
|
| Back to top |
|
|
|
