A/C compressor - oil

Reply
 
LinkBack Thread Tools Display Modes
Old 21 Sep 2006, 04:47 pm   #1 (permalink)
Pszemol
Guest
  • Posts: n/a
  • User Status:


Default A/C compressor - oil

If I get a a/c compressor from an unknown source
like a junkyard, how do I check how much oil is
there left and how much to add before installation?

Is there a way to remove all oil to empty this thing?
This way I can add specified amount from scratch.
  Reply With Quote
Old 23 Sep 2006, 01:39 am   #2 (permalink)
sqdancerLynn
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil

I would NOT buy a used compressor... Their is more to fixing it than just
changing the compressor. Assuming the old compressor seized ??
blew up. The system needs to be flushed VERY GOOD
and a new dryer installed, & need to check for leaks. Then you need to
evacuate the system (you have a vacuum pump?) Then you need to recharge to
the proper pressures (you have a set of gauges?)

  Reply With Quote
Old 23 Sep 2006, 10:17 am   #3 (permalink)
Pszemol
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil

"sqdancerLynn" <sqdancerlynn1@verizon.net> wrote in message news:b1936c94f41cec730347d09fa6618b16@localhost.ta lkaboutautos.com...
> I would NOT buy a used compressor... Their is more to fixing it than
> just changing the compressor. Assuming the old compressor seized ??
> blew up. The system needs to be flushed VERY GOOD
> and a new dryer installed, & need to check for leaks. Then you need to
> evacuate the system (you have a vacuum pump?) Then you need to
> recharge to the proper pressures (you have a set of gauges?)


My old compressor did not blew up. It is perfectly fine, except
it has a damage on the clutch bearing support causing the clutch
to malfunction. I tried to replace clutch alone but discovered
that the problem is with the compressor, not only the clutch.
That is why I need to replace the compressor.

So, since my compressor did not seize my system does not need
flushing, right ?

And yes, I have a set of gauges and I have access to a vacuum pump.

Why wouldn't you buy a used compressor ?

Can you answer to my original question about the amount of oil ?
  Reply With Quote
Old 24 Sep 2006, 07:55 am   #4 (permalink)
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil


"Pszemol" <Pszemol@PolBox.com> wrote in message
news:ef31jj.2h4.1@poczta.onet.pl...
>
> So, since my compressor did not seize my system does not need
> flushing, right ?
>
> And yes, I have a set of gauges and I have access to a vacuum pump.
>
> Why wouldn't you buy a used compressor ?
>
> Can you answer to my original question about the amount of oil ?


You can get essentially all the lubricant out of the compressor by draining
it
properly, and start off with a fresh charge. You can't conveniently guess
or
estimate how much lubricant is left in a system especially if there has been
a leak.

I just had my Reatta converted from R12 to R134a because (1) R12 is too hard
to
access around here and (2) because I had a leak and needed to replace the
compressor
for that reason. Decided to start afresh.

The local mechanic flushed the system (because you have to do so when
changing
refrigerant types and therefore lubricant types) and found it full of 'black
death'.

If you dont do AC jobs correctly from the start, you are likely to lose a
good deal of
money and be irritated at the result.

There is a lot of good information at www.ackits.com and also in the
associated
forum.


  Reply With Quote
Old 24 Sep 2006, 01:10 pm   #5 (permalink)
Pszemol
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil

<HLS@nospam.nix> wrote in message news:7fvRg.15681$IA.9690@newssvr11.news.prodigy.co m...
>> So, since my compressor did not seize my system does not need
>> flushing, right ?
>>
>> And yes, I have a set of gauges and I have access to a vacuum pump.
>>
>> Why wouldn't you buy a used compressor ?
>>
>> Can you answer to my original question about the amount of oil ?

>
> You can get essentially all the lubricant out of the compressor
> by draining it properly, and start off with a fresh charge.


What does it mean exactly "drain it properly"?
How to drain it properly ?

> You can't conveniently guess or estimate how much lubricant
> is left in a system especially if there has been a leak.


Understandable.

> There is a lot of good information at www.ackits.com
> and also in the associated forum.


Thanks.
  Reply With Quote
Old 24 Sep 2006, 11:42 pm   #6 (permalink)
sqdancerLynn
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil

Buying a used compressor is buying someone else's
problems. Esp when you find it blowing up in a month or two because their
was dirt in it from impropper handeling. . & you have to do the whole job
over

  Reply With Quote
Old 25 Sep 2006, 10:09 am   #7 (permalink)
Pszemol
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil

"sqdancerLynn" <sqdancerlynn1@verizon.net> wrote in message news:93ea72fd100695ff320b30fff03b51dc@localhost.ta lkaboutautos.com...
> Buying a used compressor is buying someone else's
> problems. Esp when you find it blowing up in a month or two because their
> was dirt in it from impropper handeling. . & you have to do the whole job
> over


I took it from the engine on the junkyard myself.
Tell me please, what is "improper handling" - I will know how it was handled :-)
  Reply With Quote
Old 25 Sep 2006, 01:39 pm   #8 (permalink)
mrdarrett@gmail.com
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil


HLS@nospam.nix wrote:
> "Pszemol" <Pszemol@PolBox.com> wrote in message
> news:ef31jj.2h4.1@poczta.onet.pl...
> >
> > So, since my compressor did not seize my system does not need
> > flushing, right ?
> >
> > And yes, I have a set of gauges and I have access to a vacuum pump.
> >
> > Why wouldn't you buy a used compressor ?
> >
> > Can you answer to my original question about the amount of oil ?

>
> You can get essentially all the lubricant out of the compressor by draining
> it
> properly, and start off with a fresh charge. You can't conveniently guess
> or
> estimate how much lubricant is left in a system especially if there has been
> a leak.
>
> I just had my Reatta converted from R12 to R134a because (1) R12 is too hard
> to
> access around here and (2) because I had a leak and needed to replace the
> compressor
> for that reason. Decided to start afresh.
>
> The local mechanic flushed the system (because you have to do so when
> changing
> refrigerant types and therefore lubricant types) and found it full of 'black
> death'.



'black death' ?

Is this a typical problem with camrys, '96 and newer?

  Reply With Quote
Old 25 Sep 2006, 05:28 pm   #9 (permalink)
toyomoho
Guest
  • Posts: n/a
  • User Status:


Default Re: A/C compressor - oil


The link below explains black death.

http://tinyurl.com/eq79v

Can’t find the exact info for you. The oil should just drain out
of the compressor. Refill with the same amount that drained out. The
A/C system will have lubricant spread out through it.

Best to also replace the dryer also at this time.

Check the link below to find the service manual this car.

http://oregonstate.edu/~tongt/camry

Vacuum (the longer the better, some shops run overnight), refill the
system and see what happens. You should be OK.


--
toyomoho
------------------------------------------------------------------------
toyomoho's Profile: http://www.toyotanation.com/forum/me...p?userid=59151
View this thread: http://www.toyotanation.com/forum/sh...d.php?t=156692

  Reply With Quote

Reply

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 07:18 am.

Attribution:
Autoblog
Powered by Yahoo Answers



ToyotaLexusForum.com is an unofficial community for car enthusiasts. ToyotaLexusForum.com is not affiliated with Toyota Motor Corporation in any way.
Toyota Motor Corporation does not sponsor, support, or endorse ToyotaLexusForum.com in any way.
Copyright/trademark/sales mark infringements are not intended or implied.