HarryS

I hold a universal and auto certification and found the site to be a good
basic site for the beginner. However, each manufacturer does have different
charge rates for their system. It is best to by one of the tech manuals
just for AC and they are pretty helpful. Check for leaks by putting about 20
lbs of nitrogen in the system and see if you get a pressure drop and be sure
to use a gauge that is in 1/4 lb increments. I have access to an ultrasonic
leak detector which will find a microscopic leak even under vacuum.

If there are no leaks it is time to evacuate the system which is the most
important part. There are several places that do rent vacuum pumps to
evacuate AC systems is cheaper to rent for a bout $75.00 a day than to spend
several hundred $$. If you put your system pack together and it is tight
then it should take about 2 hours to pump down the system to about 500
microns. Leave the system under vacuum and put in the proper type and amount
of compressor oil.

Once that is done you are ready to complete an initial charge IAW MFGS
instructions and tweak as needed to have at least 50 degree discharge air
from the vents. Also, there is an old tech trick by placing a fan in front
of your grill blowing across the condenser this will aid in system charging.
--
HarryS
"HomeBrewer" <85cj7XXX@***.net> wrote in message
news:2ng0fcFhm74U1@uni-berlin.de...
> I found a similar site for autos - it's www.alldatadiy.com It costs $25 /
> year for service, but well worth it for complicated tasks like this one.
It
> has good step-by-step instructions and lots of diagrams. I think it's the
> same thing as most garages use. I've got most of the dash out - spent two
> hours today working on it. I't not too bad, yet!
>
> --
> _____________________
> HomeBrewer
> 85CJ7 (in Progress)
> http://85cj7.blogspot.com/
> 99XJ Sport
> Remove the xxx to reply!
>
>

HomeBrewer

I guess I didn't mention the fact that once the air started blowing hot, I
took it to the dealer and they confirmed that the evaporator was leaking. It
leaked everything out in a matter 3-4 hours. They charged my $50+ and said
to bring it back for the $950+ evaporator replacement.

The truck is my 3rd vehicle at the moment and is not needed. I am selling it
to my father-in-law, but he isn't getting it until the end of Sep. I have
until then to get the air fixed. He said he would do it, but I didn't want
to screw him over like that. He is giving me more than the truck is worth
already.

So instead of forking over the $950 to have the air fixed, I decided to make
it a trainig project. I hate not being able to fix _everything_ I own. So
here I set. I assumed that there was no need to evacuate the system, since
it's already done that on its own. So I started gaining access to the
evaporator coil today.

I have 2 months to get it out, buy new parts, and replace everything.

Now, once I get the evaporator out and replaced, and put the system back
together, I plan to take it to a dealer (or a/c shop) to have it serviced
and charged. Where I assume they will leave the system under vacuum and put
in the proper type and amount of compressor oil.

Am I on track here? And, what other parts/pieces should I look at while I'm
in there?
--
_____________________
HomeBrewer
85CJ7 (in Progress)
http://85cj7.blogspot.com/
99XJ Sport
Remove the xxx to reply!

"HarryS" <harry-s@comcast.net> wrote in message
news:zpidnfEcqKg8e4_cRVn-uw@comcast.com...
> I hold a universal and auto certification and found the site to be a good
> basic site for the beginner. However, each manufacturer does have
different
> charge rates for their system. It is best to by one of the tech manuals
> just for AC and they are pretty helpful. Check for leaks by putting about
20
> lbs of nitrogen in the system and see if you get a pressure drop and be
sure
> to use a gauge that is in 1/4 lb increments. I have access to an
ultrasonic
> leak detector which will find a microscopic leak even under vacuum.
>
> If there are no leaks it is time to evacuate the system which is the most
> important part. There are several places that do rent vacuum pumps to
> evacuate AC systems is cheaper to rent for a bout $75.00 a day than to
spend
> several hundred $$. If you put your system pack together and it is tight
> then it should take about 2 hours to pump down the system to about 500
> microns. Leave the system under vacuum and put in the proper type and
amount
> of compressor oil.
>
> Once that is done you are ready to complete an initial charge IAW MFGS
> instructions and tweak as needed to have at least 50 degree discharge air
> from the vents. Also, there is an old tech trick by placing a fan in
front
> of your grill blowing across the condenser this will aid in system
charging.
> --
> HarryS
> "HomeBrewer" <85cj7XXX@***.net> wrote in message
> news:2ng0fcFhm74U1@uni-berlin.de...
> > I found a similar site for autos - it's www.alldatadiy.com It costs $25
/
> > year for service, but well worth it for complicated tasks like this one.
> It
> > has good step-by-step instructions and lots of diagrams. I think it's
the
> > same thing as most garages use. I've got most of the dash out - spent
two
> > hours today working on it. I't not too bad, yet!
> >
> > --
> > _____________________
> > HomeBrewer
> > 85CJ7 (in Progress)
> > http://85cj7.blogspot.com/
> > 99XJ Sport
> > Remove the xxx to reply!
> >
> >
>
>

HomeBrewer

I guess I didn't mention the fact that once the air started blowing hot, I
took it to the dealer and they confirmed that the evaporator was leaking. It
leaked everything out in a matter 3-4 hours. They charged my $50+ and said
to bring it back for the $950+ evaporator replacement.

The truck is my 3rd vehicle at the moment and is not needed. I am selling it
to my father-in-law, but he isn't getting it until the end of Sep. I have
until then to get the air fixed. He said he would do it, but I didn't want
to screw him over like that. He is giving me more than the truck is worth
already.

So instead of forking over the $950 to have the air fixed, I decided to make
it a trainig project. I hate not being able to fix _everything_ I own. So
here I set. I assumed that there was no need to evacuate the system, since
it's already done that on its own. So I started gaining access to the
evaporator coil today.

I have 2 months to get it out, buy new parts, and replace everything.

Now, once I get the evaporator out and replaced, and put the system back
together, I plan to take it to a dealer (or a/c shop) to have it serviced
and charged. Where I assume they will leave the system under vacuum and put
in the proper type and amount of compressor oil.

Am I on track here? And, what other parts/pieces should I look at while I'm
in there?
--
_____________________
HomeBrewer
85CJ7 (in Progress)
http://85cj7.blogspot.com/
99XJ Sport
Remove the xxx to reply!

"HarryS" <harry-s@comcast.net> wrote in message
news:zpidnfEcqKg8e4_cRVn-uw@comcast.com...
> I hold a universal and auto certification and found the site to be a good
> basic site for the beginner. However, each manufacturer does have
different
> charge rates for their system. It is best to by one of the tech manuals
> just for AC and they are pretty helpful. Check for leaks by putting about
20
> lbs of nitrogen in the system and see if you get a pressure drop and be
sure
> to use a gauge that is in 1/4 lb increments. I have access to an
ultrasonic
> leak detector which will find a microscopic leak even under vacuum.
>
> If there are no leaks it is time to evacuate the system which is the most
> important part. There are several places that do rent vacuum pumps to
> evacuate AC systems is cheaper to rent for a bout $75.00 a day than to
spend
> several hundred $$. If you put your system pack together and it is tight
> then it should take about 2 hours to pump down the system to about 500
> microns. Leave the system under vacuum and put in the proper type and
amount
> of compressor oil.
>
> Once that is done you are ready to complete an initial charge IAW MFGS
> instructions and tweak as needed to have at least 50 degree discharge air
> from the vents. Also, there is an old tech trick by placing a fan in
front
> of your grill blowing across the condenser this will aid in system
charging.
> --
> HarryS
> "HomeBrewer" <85cj7XXX@***.net> wrote in message
> news:2ng0fcFhm74U1@uni-berlin.de...
> > I found a similar site for autos - it's www.alldatadiy.com It costs $25
/
> > year for service, but well worth it for complicated tasks like this one.
> It
> > has good step-by-step instructions and lots of diagrams. I think it's
the
> > same thing as most garages use. I've got most of the dash out - spent
two
> > hours today working on it. I't not too bad, yet!
> >
> > --
> > _____________________
> > HomeBrewer
> > 85CJ7 (in Progress)
> > http://85cj7.blogspot.com/
> > 99XJ Sport
> > Remove the xxx to reply!
> >
> >
>
>

HomeBrewer

I guess I didn't mention the fact that once the air started blowing hot, I
took it to the dealer and they confirmed that the evaporator was leaking. It
leaked everything out in a matter 3-4 hours. They charged my $50+ and said
to bring it back for the $950+ evaporator replacement.

The truck is my 3rd vehicle at the moment and is not needed. I am selling it
to my father-in-law, but he isn't getting it until the end of Sep. I have
until then to get the air fixed. He said he would do it, but I didn't want
to screw him over like that. He is giving me more than the truck is worth
already.

So instead of forking over the $950 to have the air fixed, I decided to make
it a trainig project. I hate not being able to fix _everything_ I own. So
here I set. I assumed that there was no need to evacuate the system, since
it's already done that on its own. So I started gaining access to the
evaporator coil today.

I have 2 months to get it out, buy new parts, and replace everything.

Now, once I get the evaporator out and replaced, and put the system back
together, I plan to take it to a dealer (or a/c shop) to have it serviced
and charged. Where I assume they will leave the system under vacuum and put
in the proper type and amount of compressor oil.

Am I on track here? And, what other parts/pieces should I look at while I'm
in there?
--
_____________________
HomeBrewer
85CJ7 (in Progress)
http://85cj7.blogspot.com/
99XJ Sport
Remove the xxx to reply!

"HarryS" <harry-s@comcast.net> wrote in message
news:zpidnfEcqKg8e4_cRVn-uw@comcast.com...
> I hold a universal and auto certification and found the site to be a good
> basic site for the beginner. However, each manufacturer does have
different
> charge rates for their system. It is best to by one of the tech manuals
> just for AC and they are pretty helpful. Check for leaks by putting about
20
> lbs of nitrogen in the system and see if you get a pressure drop and be
sure
> to use a gauge that is in 1/4 lb increments. I have access to an
ultrasonic
> leak detector which will find a microscopic leak even under vacuum.
>
> If there are no leaks it is time to evacuate the system which is the most
> important part. There are several places that do rent vacuum pumps to
> evacuate AC systems is cheaper to rent for a bout $75.00 a day than to
spend
> several hundred $$. If you put your system pack together and it is tight
> then it should take about 2 hours to pump down the system to about 500
> microns. Leave the system under vacuum and put in the proper type and
amount
> of compressor oil.
>
> Once that is done you are ready to complete an initial charge IAW MFGS
> instructions and tweak as needed to have at least 50 degree discharge air
> from the vents. Also, there is an old tech trick by placing a fan in
front
> of your grill blowing across the condenser this will aid in system
charging.
> --
> HarryS
> "HomeBrewer" <85cj7XXX@***.net> wrote in message
> news:2ng0fcFhm74U1@uni-berlin.de...
> > I found a similar site for autos - it's www.alldatadiy.com It costs $25
/
> > year for service, but well worth it for complicated tasks like this one.
> It
> > has good step-by-step instructions and lots of diagrams. I think it's
the
> > same thing as most garages use. I've got most of the dash out - spent
two
> > hours today working on it. I't not too bad, yet!
> >
> > --
> > _____________________
> > HomeBrewer
> > 85CJ7 (in Progress)
> > http://85cj7.blogspot.com/
> > 99XJ Sport
> > Remove the xxx to reply!
> >
> >
>
>

HomeBrewer

I guess I didn't mention the fact that once the air started blowing hot, I
took it to the dealer and they confirmed that the evaporator was leaking. It
leaked everything out in a matter 3-4 hours. They charged my $50+ and said
to bring it back for the $950+ evaporator replacement.

The truck is my 3rd vehicle at the moment and is not needed. I am selling it
to my father-in-law, but he isn't getting it until the end of Sep. I have
until then to get the air fixed. He said he would do it, but I didn't want
to screw him over like that. He is giving me more than the truck is worth
already.

So instead of forking over the $950 to have the air fixed, I decided to make
it a trainig project. I hate not being able to fix _everything_ I own. So
here I set. I assumed that there was no need to evacuate the system, since
it's already done that on its own. So I started gaining access to the
evaporator coil today.

I have 2 months to get it out, buy new parts, and replace everything.

Now, once I get the evaporator out and replaced, and put the system back
together, I plan to take it to a dealer (or a/c shop) to have it serviced
and charged. Where I assume they will leave the system under vacuum and put
in the proper type and amount of compressor oil.

Am I on track here? And, what other parts/pieces should I look at while I'm
in there?
--
_____________________
HomeBrewer
85CJ7 (in Progress)
http://85cj7.blogspot.com/
99XJ Sport
Remove the xxx to reply!

"HarryS" <harry-s@comcast.net> wrote in message
news:zpidnfEcqKg8e4_cRVn-uw@comcast.com...
> I hold a universal and auto certification and found the site to be a good
> basic site for the beginner. However, each manufacturer does have
different
> charge rates for their system. It is best to by one of the tech manuals
> just for AC and they are pretty helpful. Check for leaks by putting about
20
> lbs of nitrogen in the system and see if you get a pressure drop and be
sure
> to use a gauge that is in 1/4 lb increments. I have access to an
ultrasonic
> leak detector which will find a microscopic leak even under vacuum.
>
> If there are no leaks it is time to evacuate the system which is the most
> important part. There are several places that do rent vacuum pumps to
> evacuate AC systems is cheaper to rent for a bout $75.00 a day than to
spend
> several hundred $$. If you put your system pack together and it is tight
> then it should take about 2 hours to pump down the system to about 500
> microns. Leave the system under vacuum and put in the proper type and
amount
> of compressor oil.
>
> Once that is done you are ready to complete an initial charge IAW MFGS
> instructions and tweak as needed to have at least 50 degree discharge air
> from the vents. Also, there is an old tech trick by placing a fan in
front
> of your grill blowing across the condenser this will aid in system
charging.
> --
> HarryS
> "HomeBrewer" <85cj7XXX@***.net> wrote in message
> news:2ng0fcFhm74U1@uni-berlin.de...
> > I found a similar site for autos - it's www.alldatadiy.com It costs $25
/
> > year for service, but well worth it for complicated tasks like this one.
> It
> > has good step-by-step instructions and lots of diagrams. I think it's
the
> > same thing as most garages use. I've got most of the dash out - spent
two
> > hours today working on it. I't not too bad, yet!
> >
> > --
> > _____________________
> > HomeBrewer
> > 85CJ7 (in Progress)
> > http://85cj7.blogspot.com/
> > 99XJ Sport
> > Remove the xxx to reply!
> >
> >
>
>

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

After you get it put back together, you, in the future will gladly
pay a grand in labor.
To evacuate the system, I believe you're confusing with trapping
the refrigerant to avoid, just letting it into our atmosphere. You are
vacuuming the system to get out all the air which will not perform like
the gas you will fill it with, along with the water that is trapped in
the dryer.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

HomeBrewer wrote:
>
> I guess I didn't mention the fact that once the air started blowing hot, I
> took it to the dealer and they confirmed that the evaporator was leaking. It
> leaked everything out in a matter 3-4 hours. They charged my $50+ and said
> to bring it back for the $950+ evaporator replacement.
>
> The truck is my 3rd vehicle at the moment and is not needed. I am selling it
> to my father-in-law, but he isn't getting it until the end of Sep. I have
> until then to get the air fixed. He said he would do it, but I didn't want
> to screw him over like that. He is giving me more than the truck is worth
> already.
>
> So instead of forking over the $950 to have the air fixed, I decided to make
> it a trainig project. I hate not being able to fix _everything_ I own. So
> here I set. I assumed that there was no need to evacuate the system, since
> it's already done that on its own. So I started gaining access to the
> evaporator coil today.
>
> I have 2 months to get it out, buy new parts, and replace everything.
>
> Now, once I get the evaporator out and replaced, and put the system back
> together, I plan to take it to a dealer (or a/c shop) to have it serviced
> and charged. Where I assume they will leave the system under vacuum and put
> in the proper type and amount of compressor oil.
>
> Am I on track here? And, what other parts/pieces should I look at while I'm
> in there?
> --
> _____________________
> HomeBrewer
> 85CJ7 (in Progress)
> http://85cj7.blogspot.com/
> 99XJ Sport
> Remove the xxx to reply!

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

After you get it put back together, you, in the future will gladly
pay a grand in labor.
To evacuate the system, I believe you're confusing with trapping
the refrigerant to avoid, just letting it into our atmosphere. You are
vacuuming the system to get out all the air which will not perform like
the gas you will fill it with, along with the water that is trapped in
the dryer.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

HomeBrewer wrote:
>
> I guess I didn't mention the fact that once the air started blowing hot, I
> took it to the dealer and they confirmed that the evaporator was leaking. It
> leaked everything out in a matter 3-4 hours. They charged my $50+ and said
> to bring it back for the $950+ evaporator replacement.
>
> The truck is my 3rd vehicle at the moment and is not needed. I am selling it
> to my father-in-law, but he isn't getting it until the end of Sep. I have
> until then to get the air fixed. He said he would do it, but I didn't want
> to screw him over like that. He is giving me more than the truck is worth
> already.
>
> So instead of forking over the $950 to have the air fixed, I decided to make
> it a trainig project. I hate not being able to fix _everything_ I own. So
> here I set. I assumed that there was no need to evacuate the system, since
> it's already done that on its own. So I started gaining access to the
> evaporator coil today.
>
> I have 2 months to get it out, buy new parts, and replace everything.
>
> Now, once I get the evaporator out and replaced, and put the system back
> together, I plan to take it to a dealer (or a/c shop) to have it serviced
> and charged. Where I assume they will leave the system under vacuum and put
> in the proper type and amount of compressor oil.
>
> Am I on track here? And, what other parts/pieces should I look at while I'm
> in there?
> --
> _____________________
> HomeBrewer
> 85CJ7 (in Progress)
> http://85cj7.blogspot.com/
> 99XJ Sport
> Remove the xxx to reply!

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

After you get it put back together, you, in the future will gladly
pay a grand in labor.
To evacuate the system, I believe you're confusing with trapping
the refrigerant to avoid, just letting it into our atmosphere. You are
vacuuming the system to get out all the air which will not perform like
the gas you will fill it with, along with the water that is trapped in
the dryer.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

HomeBrewer wrote:
>
> I guess I didn't mention the fact that once the air started blowing hot, I
> took it to the dealer and they confirmed that the evaporator was leaking. It
> leaked everything out in a matter 3-4 hours. They charged my $50+ and said
> to bring it back for the $950+ evaporator replacement.
>
> The truck is my 3rd vehicle at the moment and is not needed. I am selling it
> to my father-in-law, but he isn't getting it until the end of Sep. I have
> until then to get the air fixed. He said he would do it, but I didn't want
> to screw him over like that. He is giving me more than the truck is worth
> already.
>
> So instead of forking over the $950 to have the air fixed, I decided to make
> it a trainig project. I hate not being able to fix _everything_ I own. So
> here I set. I assumed that there was no need to evacuate the system, since
> it's already done that on its own. So I started gaining access to the
> evaporator coil today.
>
> I have 2 months to get it out, buy new parts, and replace everything.
>
> Now, once I get the evaporator out and replaced, and put the system back
> together, I plan to take it to a dealer (or a/c shop) to have it serviced
> and charged. Where I assume they will leave the system under vacuum and put
> in the proper type and amount of compressor oil.
>
> Am I on track here? And, what other parts/pieces should I look at while I'm
> in there?
> --
> _____________________
> HomeBrewer
> 85CJ7 (in Progress)
> http://85cj7.blogspot.com/
> 99XJ Sport
> Remove the xxx to reply!

L.W.(=?iso-8859-1?Q?=DFill?=) Hughes III

After you get it put back together, you, in the future will gladly
pay a grand in labor.
To evacuate the system, I believe you're confusing with trapping
the refrigerant to avoid, just letting it into our atmosphere. You are
vacuuming the system to get out all the air which will not perform like
the gas you will fill it with, along with the water that is trapped in
the dryer.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

HomeBrewer wrote:
>
> I guess I didn't mention the fact that once the air started blowing hot, I
> took it to the dealer and they confirmed that the evaporator was leaking. It
> leaked everything out in a matter 3-4 hours. They charged my $50+ and said
> to bring it back for the $950+ evaporator replacement.
>
> The truck is my 3rd vehicle at the moment and is not needed. I am selling it
> to my father-in-law, but he isn't getting it until the end of Sep. I have
> until then to get the air fixed. He said he would do it, but I didn't want
> to screw him over like that. He is giving me more than the truck is worth
> already.
>
> So instead of forking over the $950 to have the air fixed, I decided to make
> it a trainig project. I hate not being able to fix _everything_ I own. So
> here I set. I assumed that there was no need to evacuate the system, since
> it's already done that on its own. So I started gaining access to the
> evaporator coil today.
>
> I have 2 months to get it out, buy new parts, and replace everything.
>
> Now, once I get the evaporator out and replaced, and put the system back
> together, I plan to take it to a dealer (or a/c shop) to have it serviced
> and charged. Where I assume they will leave the system under vacuum and put
> in the proper type and amount of compressor oil.
>
> Am I on track here? And, what other parts/pieces should I look at while I'm
> in there?
> --
> _____________________
> HomeBrewer
> 85CJ7 (in Progress)
> http://85cj7.blogspot.com/
> 99XJ Sport
> Remove the xxx to reply!

AFeygelson

try www.dodgedakotas.com
Art
'89 Plymouth AHB (82400-162423)
'98 XJ Black (35948-45398)
'00 XJ Black (33600-)
"I can't use what I can't abuse" - Garbage
RIP #3, GO! #29 #88