Re-charge A/C

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g_man1972
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Re: Re-charge A/C

Post by g_man1972 »

after oil wrote:
g_man1972 wrote:My AC is working and does blow cold, just not very cold, I'm wondering if I should do this as well? To those whos AC is working perfectly, how long does it take for your van to cool down on a hot day? I can have mine of for around 10-15 minutes at full blast front and rear before I start to feel cooler on a hot day, it this longer than normal? I know it's a big cab, so I would expect it to take a while, but wondering if a recharge would make that time quicker. My car at work is like 3 minutes till I can turn it down, but it's a car, not a big honking van with 13 windows :-)

Cheers all

in a few seconds i can feel the difference, cool to very cold
DelicaMark wrote:afteroil.

Okey dokey, off to get a redtek kit I go then. Got some long trips ahead, so that should help to make the clan more comfortable.

Thanks for the answer
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Re: Re-charge A/C

Post by Erebus »

DelicaMark wrote:video on their (Redtek) website where they say that you should remove the old refridgerent first.
That would require capturing it, since releasing to the atmosphere is a very bad thing.
Image "I could be just around the corner from heaven, or a mile from hell." -- Jackson Browne, "The road and the sky".
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Re: Re-charge A/C

Post by DelicaMark »

I took a closer look today at this and found a couple of things that confused me. I don't seem to have the same setup as afteroil does. See picture below. There does seem to be 2 obvious places to attach the adaptor from the kit. They are both on the wrapped hoses going to the A/C unit. One of the hoses goes to the main radiator and the other goes down and out the front left to I assume the A/C radiator (maybe the wrong term). So assuming that I am right and that I need to attach to one of these valves and that I have a different setup then afteroil does, which one is the low pressure and which one is th high pressure? I am trying to find the low pressure. Is it the one that goes to the A/C rad or is it the one that goes to the main rad? Or neither and I am totally out to lunch?
AC_2.jpg
AC_2.jpg (69.05 KiB) Viewed 4685 times
Here is one of the sheddar valves.
Valve.jpg
Valve.jpg (42.99 KiB) Viewed 4684 times
Here is the adaptor from the kit which looks like it will fit onto the above valve.
adaptor.jpg
adaptor.jpg (38.2 KiB) Viewed 4683 times
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DelicaMark
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Re: Re-charge A/C

Post by DelicaMark »

Did some quick checking on the world-wide-web :-) and found this:

LOCATE THE SERVICE FITTINGS

Next, you need to locate the service fittings on the A/C system. There are two: a LOW side fitting and a HIGH side fitting. The LOW side fitting is usually located on the suction hose or line that goes from the accumulator to the compressor. The HIGH side fitting is located on the line that goes from the compressor to the condenser.

R12 Low Side 7/16 in. threaded ß----------à R134 Low Side 13mm Quick-disconnect

R12 High Side 3/8 in. threaded ß----------à R134A High Side 16mm Quick-disconnect

On older R12 systems, the LOW and HIGH pressure service fittings are screw-type Schrader valves. On newer R134a systems, the LOW and HIGH side service fittings are quick-connect style fittings. The LOW pressure fitting is SMALLER than the HIGH pressure fitting.


So I am guessing that which ever valve it fits on is the right one as the low and high sides are different sizes.
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Re: Re-charge A/C

Post by after oil »

sounds like youre on the right track... my low pressure port had a cover on it that said "L" i assume it means low...
why dont you use the search function you idiot!!??!! (thats a huge dark sarcastic joke, no offense meant! :? )
theres a great diagram here:
http://www.delica.ca/forum/a-c-head-scratcher-5807.html

you can map your system to find your ports...
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Re: Re-charge A/C

Post by DelicaMark »

I had looked at that schematic that was posted. I am not sure what the evaporator and condenser are in relation to our vans. I am guessing the condenser is what I called the A/C rad on the front left, which is where one hose goes and the evaporator is the main rad which is where the other hose goes.

I just tried the adaptor on each schedder valve and of course it fits on both...big surprise.

Wish mine had a big "L" on it for me too.

-Mark
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Re: Re-charge A/C

Post by loki »

DelicaMark wrote:I had looked at that schematic that was posted. I am not sure what the evaporator and condenser are in relation to our vans. I am guessing the condenser is what I called the A/C rad on the front left, which is where one hose goes and the evaporator is the main rad which is where the other hose goes.

I just tried the adaptor on each schedder valve and of course it fits on both...big surprise.

Wish mine had a big "L" on it for me too.

-Mark

on the diagram it points out what part is in the van and what is out from of the engine :)
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Re: Re-charge A/C

Post by DelicaMark »

True enough Loki.

Learned a couple of quick things:

1. screwing on the adaptor to the valve first without having it attached to the main pressure gauge fitting will result in deadly gases being leaked out. I really didn't think that was going to happen. Only a very small ozone layer hole opened up in Duncan I am sure.

2. When tracing out where the hoses went I found that the fan above the condenser (the rad looking thing by the front left side step) does not turn. I am assuming that it should at least turn one way or the other. It clearly doesn't move. I am guessing that this is major part of my poor A/C performance.

Maybe saved $80 in A/C stuff from CT but who knows how much the fan unit will run me....

-Mark
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Re: Re-charge A/C

Post by loki »

DelicaMark wrote:True enough Loki.

Learned a couple of quick things:

1. screwing on the adaptor to the valve first without having it attached to the main pressure gauge fitting will result in deadly gases being leaked out. I really didn't think that was going to happen. Only a very small ozone layer hole opened up in Duncan I am sure.

2. When tracing out where the hoses went I found that the fan above the condenser (the rad looking thing by the front left side step) does not turn. I am assuming that it should at least turn one way or the other. It clearly doesn't move. I am guessing that this is major part of my poor A/C performance.

Maybe saved $80 in A/C stuff from CT but who knows how much the fan unit will run me....

-Mark
Is the fan supposed to run all the time? I have no idea, also letting some of the gas out will probably make it so you will need to add more now whether it needed it before or not, but I'm not an AC guy so what do I know eh? :)
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Re: Re-charge A/C

Post by DelicaMark »

Judging by how getting the adaptor on worked I would say that you really need to have no refrigderant in the system otherwise it will leak out when getting the adaptor etc attached.

I returned the A/C stuff to CT. Until I am sure that there are no other issues going on i am not going to try and recharge the system. Probably should have started there in the first place.

-Mark
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Re: Re-charge A/C

Post by jessef »

I used the cnd tire redtek kit and it blew ice cold for a few hours and then back to warm.

Have to track down the leak somewhere. :?
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Re: Re-charge A/C

Post by after oil »

DelicaMark wrote:Judging by how getting the adaptor on worked I would say that you really need to have no refrigderant in the system otherwise it will leak out when getting the adaptor etc attached.

I returned the A/C stuff to CT. Until I am sure that there are no other issues going on i am not going to try and recharge the system. Probably should have started there in the first place.

-Mark
mark, if you plug the hose and gauge into the low pressure port, and the valve at the other end of the hose is closed, refrigerant cannot leak out.....i think

jfarsang wrote:I used the cnd tire redtek kit and it blew ice cold for a few hours and then back to warm.

Have to track down the leak somewhere. :?
is the refrigerant died? i think my can said it was, i presume so you could see a leak, but maybe just so you can see the gas... not sure i guess
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Re: Re-charge A/C

Post by Modsqwad »

loki wrote:
DelicaMark wrote:True enough Loki.

Learned a couple of quick things:

1. screwing on the adaptor to the valve first without having it attached to the main pressure gauge fitting will result in deadly gases being leaked out. I really didn't think that was going to happen. Only a very small ozone layer hole opened up in Duncan I am sure.

2. When tracing out where the hoses went I found that the fan above the condenser (the rad looking thing by the front left side step) does not turn. I am assuming that it should at least turn one way or the other. It clearly doesn't move. I am guessing that this is major part of my poor A/C performance.

Maybe saved $80 in A/C stuff from CT but who knows how much the fan unit will run me....

-Mark
Is the fan supposed to run all the time? I have no idea, also letting some of the gas out will probably make it so you will need to add more now whether it needed it before or not, but I'm not an AC guy so what do I know eh? :)

Both fans should run when the AC is on. There are two of them one in front of the main condenser which is in front of the rad and the secondary under the passanger foot well. The fuses and relays are behind the glove box. If you look at the post I put in the AC head scratcher topic last you can see the photo I put in today with labels on all the parts and description of what does what. If It leaves
you with any more questions about the AC electrical system let me know I may be able to help as I just got mine sorted out. Buen Suerte.
Andy Wilson
PS If the fans don't run you will notice it most at a stop light when there is no airflow over the condenser from the motion of the van.
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Re: Re-charge A/C

Post by bikepoor »

Picked up the $49.95 recharge kit at Princess Auto in Calgary yesterday. Pleasent surprise was the price at till is now $39.93 plus GST $41.93 total. More good news was the install was even easier than the best report posted. Best news was the system instantly began blowing icy cold air as soon as I hit the AC button. Bad news was that I found out why the system lost pressure in the first place. I found the leak just above the compressor mount and below the timing belt cover where the mount joins the block with 2 visable allen head mounting bolts. I can get a right angle allen key on the one closest to the passenger door, but can't get one into the socket under the timing belt cover. I'm hoping the leak seal that came with the kit worked over night, before I lost all of the charge again.
Has anyone pulled the compresser themselves, and if so is it a gasket or o-ring that seals things up? I'm hoping for o-ring because the seal stuff tends to only work on rubber bits.
Bikepoor
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Re: Re-charge A/C

Post by FlyingBarney »

thelazybrownfox wrote:flyfishn
Best to find out why the recharge is needed. My low press switch leaked after a recharge last year and now the switch needs replaced and rechrged. Most delicas come from japan with little or no system pressure, apparently drained before shipping.
See Steve Haase at KMS Tools Coquitlam or steve_haase@yahoo.com for a cheap recharge. he does mobile work and comes to your house or? I liked the work he did for me and his price was good. The leak occured after he recharged my system.

Wayne
After reading this thread, and much research, here is the situation I am facing.

The email for Steve above is bouncing back. The http://www.short-stop.ca/ guys gave me a long story of what they are planning to do (and I don't think they know Delicas really); everything comes to about $400 and onwards from it.

The advices here look much more knowledgeable, and so I wonder... whether somebody here would be willing to help/show me how to do it. I am located in Vancouver (central East 4th and Main str, yet am willing to travel to your 'hood), and there is another Delica in the 'hood where the fellow is not mechanically inclined (just like me). So you could be "bribed" with all kinds of things of your choice to help me/us out.

Thanks,
Simon
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