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Tech Area => A/C, Heating and Cooling => Topic started by: TexasT on August 11 2013, 11:31:32 AM

Title: What tools are needed?
Post by: TexasT on August 11 2013, 11:31:32 AM
So... I'm reading up on this 152a conversion for my vehicles. I'm pretty handy(If you're not hansome, you better be handy, Red Green) and Ive added 134a to vehicles before and they blew cool again for a while. My stuff is generally older. Nothing under 100k miles. Ive never gotten into an a/c system as I was always told you had to have special tools and then they started not selling r12 to us commoners so I just never learned.


This brings us to now. I want to get the a/c in several of my vehicles, including the T, up and functioning. I read that it can be accomplished with 152a office duster. Seems simple enough. Problem is I don't have any of the specialized tools for an activity like that.


So i make a trip through amazon.com to see just what I can find. I think I need a vacuum pump and a set of gauges and probably a can tap for the duster cans.
http://www.amazon.com/Mastercool-85530-3-IN-1-Mount-Valve/dp/B0002SQLGC/ref=pd_sim_auto_8 (http://www.amazon.com/Mastercool-85530-3-IN-1-Mount-Valve/dp/B0002SQLGC/ref=pd_sim_auto_8)


So the question surfaces, do I need a two stage pump or will a single do? How much cfm does it need to pull? Im in the set that likes to buy it right and buy it once and have it last a lifetime.
http://www.amazon.com/Robinair-15500-VacuMaster-Vacuum-Pump/dp/B000O1C47M/ref=pd_sim_auto_14 (http://www.amazon.com/Robinair-15500-VacuMaster-Vacuum-Pump/dp/B000O1C47M/ref=pd_sim_auto_14)
http://www.amazon.com/Robinair-15115-VacuMaster-Single-Stage/dp/B005CO9FDW/ref=pd_sim_auto_18 (http://www.amazon.com/Robinair-15115-VacuMaster-Single-Stage/dp/B005CO9FDW/ref=pd_sim_auto_18)


Then comes the gauges. Lots of options there too. I think I'd like a set with a carrying case to protect them when not in use.
http://www.amazon.com/R134A-Manifold-Gauge-Set-85530/dp/B000LDPTR0/ref=sr_1_12?s=automotive&ie=UTF8&qid=1376233144&sr=1-12&keywords=Mastercool (http://www.amazon.com/R134A-Manifold-Gauge-Set-85530/dp/B000LDPTR0/ref=sr_1_12?s=automotive&ie=UTF8&qid=1376233144&sr=1-12&keywords=Mastercool)


Any suggestions are welcome.


TIA


Also thinking I'd like one of these to blow out the lines and such.
http://www.amazon.com/Mastercool-91046-A-Conditioner-System-Flush/dp/B000HAUXLE/ref=sr_1_25?s=automotive&ie=UTF8&qid=1376233243&sr=1-25&keywords=Mastercool (http://www.amazon.com/Mastercool-91046-A-Conditioner-System-Flush/dp/B000HAUXLE/ref=sr_1_25?s=automotive&ie=UTF8&qid=1376233243&sr=1-25&keywords=Mastercool)
Title: Re: What tools are needed?
Post by: Charlief1 on August 11 2013, 12:24:17 PM
If you want to buy a suction pump that's fine but if you just need 1 for a while you can get them as a loan a tool from AZ. For the gauges, go to harbor freight and you can get them in a hard case at reasonable prices. Since the G body cars don't have a lot of special fasteners a good set of wrenches and a core tool along with a set of small picks to get o rings off is all you need. The only other thing you might need is a pair of small.medium forceps to remove and install the orifice tube.


To flush the system a very small funnel can be made out of a syringe with a hose on the bottom. You can get a 3 pack of large ones from tractor supply. If you want to bring it down we can do it in the shop Rich and I've got a suction pump so you don't need to buy or rent one if you don't want.
Title: Re: What tools are needed?
Post by: SuperSix on August 11 2013, 05:15:21 PM
All of the items you linked look great, and prices are good too.

Single stage is fine, that one you linked looks the same as the HF one I have, I paid around the same for mine. Same goes for the gauges.

You can buy the A/C liquid flush at a local parts store, Napa, etc..

Charlie - I never fiddled with the low pressure sensor on the accumulator like some do. Leave well enough alone?

A/C is scary until you understand how it operates, with some help from friends. Charlief is the A/C guru. I have learned a lot from Jim Testa too.

Replace the valve cores too:
http://www.amazon.com/gp/product/B0023TOKWU/ (http://www.amazon.com/gp/product/B0023TOKWU/)

You will need to replace the accumulator - disregard what Amazon says fits - here's the correct A/C Delco PN: 15-1681
http://www.amazon.com/gp/product/B000JZ8X32/ (http://www.amazon.com/gp/product/B000JZ8X32/)

This is the orifice tube I used:
http://www.amazon.com/gp/product/B001A4V78E (http://www.amazon.com/gp/product/B001A4V78E)

R134 connector kit I used:
http://www.amazon.com/gp/product/B002G1PC40 (http://www.amazon.com/gp/product/B002G1PC40)

Title: Re: What tools are needed?
Post by: Charlief1 on August 11 2013, 05:35:52 PM
R-134 operates at different pressures so changing the pressure setting on the switch is a good idea. On R-12 I think the switch was set between 30 and 35 PSI so you only want it slightly lower. The hig side is going to go higher and the low side slightly lower than stock.
Title: Re: What tools are needed?
Post by: SuperSix on August 11 2013, 09:42:19 PM
Cool, thanks
Title: Re: What tools are needed?
Post by: TexasT on September 27 2015, 12:20:49 PM
I have been studying up and i am guessing the ford 38635 is the blue orifice tube(this is actually red I found 0.60 to 0.65 size).
 I think the 38639 is the red orifice tube(this one is orange 03056 to 0.059 orifice size) and the ACDelco 15-50120 Orifice Assembly is the white orifice tube(not sure what size could be in the 0.071 range)
 
 Just some background. I am going to go with the 152a(as seen here http://www.ihadav8.com/forum/index.php?topic=4082.0 (http://www.ihadav8.com/forum/index.php?topic=4082.0)). I have procured a vac pump and some gauges(happy birthday to me). Now, as my car is stock and might even have some r12 in it(I bought it new and the a/c has never been worked on) I will probably need a new drier, orifice tube and possibly a compressor(Thanks to Jason Good2win22).
 
 I will get the drier as mentioned on the link(ACDelco 15-1681 Accumulator Dryer (This is the correct TR part #, despite what Amazon and RockAuto say). I am probably going to order several orifice tubes. The delco one might not get the green light as it is over $20 and the two ford ones are $.80 ea on rock auto in the four seasons brand.
 
 I guess I need some flush and some kind of oil. pag150, ester, mineral? So confusing. One of the sites I read about using brake cleaner to flush out the lines.

Orings and such

http://www.oreillyauto.com/site/c/detail/MRY0/26735/06500.oap?year=1987&make=Buick&model=Regal&vi=1020957&ck=Search_06500_1020957_547&rpl=1&categoryRedire ct=06500&pt=06500 (http://www.oreillyauto.com/site/c/detail/MRY0/26735/06500.oap?year=1987&make=Buick&model=Regal&vi=1020957&ck=Search_06500_1020957_547&rpl=1&categoryRedirect=06500&pt=06500)


http://www.amazon.com/ACDelco-15-1681-Equipment-Conditioning-Accumulator/dp/B000JZ8X32/ref=sr_1_1?ie=UTF8&qid=1443362953&sr=8-1&keywords=15-1681 (http://www.amazon.com/ACDelco-15-1681-Equipment-Conditioning-Accumulator/dp/B000JZ8X32/ref=sr_1_1?ie=UTF8&qid=1443362953&sr=8-1&keywords=15-1681)


http://www.ebay.com/itm/Interdynamics-VA-LH8-Air-Conditioning-Conversion-Adapter-Kit-with-2-Adapters-/151826690476?hash=item23599371ac&vxp=mtr (http://www.ebay.com/itm/Interdynamics-VA-LH8-Air-Conditioning-Conversion-Adapter-Kit-with-2-Adapters-/151826690476?hash=item23599371ac&vxp=mtr)

http://www.oreillyauto.com/site/c/detail/GT00/0233183/02736.oap?year=1987&make=Buick&model=Regal&vi=1020957&ck=Search_C1951_1020957_547&pt=C1951&ppt=C0328 (http://www.oreillyauto.com/site/c/detail/GT00/0233183/02736.oap?year=1987&make=Buick&model=Regal&vi=1020957&ck=Search_C1951_1020957_547&pt=C1951&ppt=C0328)



Is this the way to go about it?
 http://www.s10forum.com/forum/f135/how-to-r152a-conversion-493953/ (http://www.s10forum.com/forum/f135/how-to-r152a-conversion-493953/)
 
 I notice he is using a white orifice tube. But I am in Texas, where it is HOT. I need max cooling at all rpm.
 
 Thanks for you thoughts and sharing your experience with us novice wrench benders.
Title: Re: What tools are needed?
Post by: TexasT on October 02 2015, 05:42:53 PM
Ok, I hit orielly for about $80.
I got the pag150 and a quart of flush
A vhal8 134 change kit. Some orings.
And a 6380 accumulator. I hope this is right one.
Title: Re: What tools are needed?
Post by: TexasT on October 02 2015, 06:26:33 PM
(http://s25.postimg.org/mqf8gx933/IMAG6984.jpg) (http://postimg.org/image/fzyr7hlx7/full/)
photo hosting sites (http://postimage.org/)

(http://s25.postimg.org/y03cy4oqn/IMAG6983.jpg) (http://postimg.org/image/c0wyax7wb/full/)
free photo hosting (http://postimage.org/)

(http://s25.postimg.org/7y5xbudrz/IMAG6978.jpg) (http://postimg.org/image/78n4zhd8b/full/)
free image hosting (http://postimage.org/)

This is the accumulator I bought. Not acdelco but the guy said I could return it if I didn't install it
I wish I could lay dimes like this

(http://s25.postimg.org/mmgtmxe7z/IMAG6982.jpg) (http://postimg.org/image/xm20yj4mz/full/)
screen capture freeware (http://postimage.org/app.php)

(http://s25.postimg.org/n1wotopj3/IMAG6985.jpg) (http://postimg.org/image/lzmib56pn/full/)
upload images free (http://postimage.org/)

Rest of the stuff, orifice tube , oil, flush, o rings

(http://s25.postimg.org/x6qr5iipr/IMAG6979.jpg) (http://postimg.org/image/k2l6stqnv/full/)
upload photos (http://postimage.org/)

(http://s25.postimg.org/6my63di67/IMAG6980.jpg) (http://postimg.org/image/rjue81g6z/full/)
screen shot on pc (http://postimage.org/app.php)

Anyone see anything wrong with the stuff? I didn't think I could get the mineral oil out of the stock accumulator or I'd have tried with It. Will flush the other stuff out and clean the condenser box and such. I still need to pick up some more 152a but that is easy.

Oh and that is the red ford orifice tube. We can see how it works. Accumulator is the one in the orielly computer for an 87 grand national. But with amazon and others having the wrong part I am skidish on this one. Anyone have thoughts or used this part number before?
Title: Re: What tools are needed?
Post by: TexasT on October 03 2015, 09:04:01 PM
I picked up a couple three packs with the 20% off it was $8 ea. Pretty good deal.

(http://s25.postimg.org/d6n64hs1r/IMAG6990.jpg) (http://postimg.org/image/m1o0f0gu3/full/)

I am hoping to get it on tomorrow.
Title: Re: What tools are needed?
Post by: TexasT on June 22 2016, 10:18:17 PM
Alright, so I'm back on this little project as it is hot and I'd like some a/c. It is a Buick after all.
I got my new gauges out and the new pump. Filled pump with the oil that came with it. The pump sucks as I crunk it up and when I put my thumb over the hole it sucks it on there. The gauges came with these quick connect things and it appears the quickconnects also have a valve in them. I was able to screw the blue hose right to the stock accumulator. The red hose is too big for the high  side so I will have to see about an adapter ot maybe I need to put the male qwick co next on there. I'll have to dig up the kit. Anyway, I hooked up that blue and opened the valve but it showed no pressure. I guess no r12 left in there. So i strung out an extent on cord and hooked up the yellow hose and hit the on switch for the pump. It is a cute little thing and just buzzes away. It pulled a 25 vac on the blue side. I guess I need to have the high side hooked up to see if anything over there leaks.

I just wanted to know if it leaks but I still need to pull it apart to flush it out and clean out the compressor. I think I need some ester oil to go with this 152a stuff, even though Charlie sez it can get acidic. From my reading it is better with a system that had mineral oil in it.

Well, no dice on it holding a vac. Might be because I didn't have the high side hooked up but I imagine I need to change some orings, clean out the system and try another vac.
Title: Re: What tools are needed?
Post by: TexasT on June 23 2016, 11:19:24 AM
(https://s25.postimg.org/bqjjxfhmn/ac_diagnosis_chart.gif)

Found this nifty little chart

And this connector diagram

(https://s25.postimg.org/4yt4uksn3/ac_service_fittings.gif)

I was able to screw the blue hose onto the 7/16" low side connector on the drier.
The high side is smaller and by the chart 3/8" threads. I will look for an adapter to be able to screw the high side red hose to it and then I can get pressures.
I found these two things on amazon
https://www.amazon.com/Atoplee-R134a-Adapter-Matched-Gauges/dp/B013DQBCQS/ref=sr_1_41?ie=UTF8&qid=1466689392&sr=8-41&keywords=R12+Converting+Adapter (https://www.amazon.com/Atoplee-R134a-Adapter-Matched-Gauges/dp/B013DQBCQS/ref=sr_1_41?ie=UTF8&qid=1466689392&sr=8-41&keywords=R12+Converting+Adapter)
https://www.amazon.com/uxcell%C2%AE-CH-138-R134A-Conditioner-Adapter/dp/B00WW55KHE/ref=pd_sim_sbs_469_3?ie=UTF8&dpID=41d7FaTQiOL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&psc=1&refRID=EJBSZZAM0P6P5FSXHF2V (https://www.amazon.com/uxcell%C2%AE-CH-138-R134A-Conditioner-Adapter/dp/B00WW55KHE/ref=pd_sim_sbs_469_3?ie=UTF8&dpID=41d7FaTQiOL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&psc=1&refRID=EJBSZZAM0P6P5FSXHF2V)

The reviews on the one are half good, and half bad and the second has no reviews. Not sure I want to drop over $20 on some chinesium junk. Any suggestions on what I should be looking for to hook up the high side on the 3/8" port?
Title: Re: What tools are needed?
Post by: daveismissing on June 23 2016, 09:49:48 PM
If your gauges are 134 you should just be able to buy the adapter set hi and low that stays on the car?
Title: Re: What tools are needed?
Post by: daveismissing on June 23 2016, 10:07:21 PM
(http://i.imgur.com/gcdJYhp.jpg)
Title: Re: What tools are needed?
Post by: TexasT on July 27 2016, 06:12:01 PM
(http://s25.postimg.org/7y5xbudrz/IMAG6978.jpg)

got that kit

i have changed direction a bit as this mineral oil needs to be flushed out and that involves a lot of work. Ive discovered a product from redtek that is a replacement for r12 and works with the mineral oil.

I was out there today until the rain came and got part of the can of sealer in and then we went on to trying to get the refridgerant in but had to jump the switch on the side of the drier to get the compressor to run. Question becomes what pressure does the switch tell the compressor to turn on? We had it up to 23 psi on the low side and about 35 psi on the high side with the compressor jumped and running. Is the switch bad or do we need to add more refridgerant?
Title: Re: What tools are needed?
Post by: daveismissing on July 27 2016, 06:23:05 PM
Continue with charging process as determined by the RED TEKŪ 12a conversion chart and adequate cooling is attained. Low pressure gauge should read between 30 and 38 psi.

http://www.redtek.com/win_12a_chargeinstall.html (http://www.redtek.com/win_12a_chargeinstall.html)

I think you are still low- its not even short cycling yet?
Title: Re: What tools are needed?
Post by: Forzfed on July 27 2016, 06:26:00 PM
Just wondering how many pounds of R134 you put in?
Title: Re: What tools are needed?
Post by: TexasT on July 28 2016, 10:13:31 AM
I am going to head back out and try to add more refrigerant. I guess it just takes more. This is all new to me. I hope I can get it to cool. It will make driving it more enjoyable.
Title: Re: What tools are needed?
Post by: Forzfed on July 28 2016, 12:14:36 PM
I am going to head back out and try to add more refrigerant. I guess it just takes more. This is all new to me. I hope I can get it to cool. It will make driving it more enjoyable.

The reason I ask is I had a buddy do mine and I believe it took 5.5 lbs.
Title: Re: What tools are needed?
Post by: TexasT on July 28 2016, 02:23:36 PM
Well, I tried again but didn't make much progress. I'm not sure the thing isn't clogged up. I guess I will take it all apart and run the flush through it and switch it over to the ester oil. Then I can also be able to try the 152a stuff. I have a new drier, and some flush and ester oil and some new green prongs. Just more work i guess.

Got called for some time and a half work so I packed it up and went to make some money. I can think about it some more. Any suggestions are welcome.
Title: Re: What tools are needed?
Post by: daveismissing on July 28 2016, 04:36:31 PM
What low side pressure did you get up to Rich? When both sides equalize what is the pressure?
Title: Re: What tools are needed?
Post by: TexasT on July 28 2016, 06:16:16 PM
Only got to  23 psi so we jumped the compressor at the switch on the drier which pulled the clutch in and the compressor on. I think something might be clogged or there is a big leak as I couldn't get it to take any more refrigerant. I tried to put some in the high side as the pressure wasn't much but it would only get up to 35 or so psi.

I am going to get another filler thing as they are cheap. The one I had was about thirteen yrs old and when I was trying to thread the female on to the angle can tap thing the end broke off. Brittle I guess. Or I tightened it on too tight but I was just using my fingers so I don't think it was that tight.

When I "cracked"(loosened) the yellow hose fitting at the can tapper the gauge would jump to 60-70psi and hold but if I opened the high side valve it would go back down like the refrigerant was going into the high side. They would equal up at about 20psi. This makes me think there is blockage in there and it wont equalize unless the high side valve on the gauge set is opened up.
Title: Re: What tools are needed?
Post by: TexasT on July 28 2016, 06:16:55 PM
Thanx for the help. I should have learned this stuff before.
Title: Re: What tools are needed?
Post by: Charlief1 on July 28 2016, 10:41:53 PM
Do you want to bring it down Rich? It would have to be on a week day though.
Title: Re: What tools are needed?
Post by: TexasT on July 28 2016, 11:39:15 PM
Let me clean it out and see about the new drier and ester oil. If I can't then, ill see about getting up with you. It is just weird it wont take any refrigerant into it. Must have a blockage.
Title: Re: What tools are needed?
Post by: fastNfurious on December 27 2016, 09:30:34 AM
Thanks for the nice report on repair! I may need it one day....
Title: Re: What tools are needed?
Post by: TexasT on July 23 2018, 09:21:47 AM
I was out there goofing with it T last night. I had gotten some dye to put in to see about leaks so we did than on this car and the Malibu. Ended up pulling a vac on the T so we put the other can of redtek in ad got it to "short cycle" . Big thanks to Jason as he hooked me up with a compressor as mine the bearing was going out. We swapped that on a while back and just now got around to goofing with it again. I am going to order more redtak and see what I can do with it.

On to the problem. High side port leaking in the Malibu. From the reading turns out this thing doesn't have a shrader valve and you replace the whole port. I can't seem to break it loose. Will heat help? I can hit it with the mapp gas but wasnt sure. Also might ry to put some ice on it. It seems to be 16mm but imnot having luck getting it off. Did find the replacement.
https://www.rockauto.com/en/tools/heat+&+air+conditioning,a/c+charge,a/c+high+side+charge+adapter,6536 (https://www.rockauto.com/en/tools/heat+&+air+conditioning,a/c+charge,a/c+high+side+charge+adapter,6536)

Any ideas are good ideas. We need us some cold air.
Title: Re: What tools are needed?
Post by: TexasT on July 23 2018, 11:31:29 AM
https://youtu.be/xWNqHYl2uGY (https://youtu.be/xWNqHYl2uGY)

<iframe width="560" height="315" src="https://www.youtube.com/embed/xWNqHYl2uGY" frameborder="0" allow="autoplay; encrypted-media" allowfullscree n></iframe>

Not real up on this YouTube. I'll have to get brad to give me some pointers.
Title: Re: What tools are needed?
Post by: daveismissing on July 23 2018, 01:37:17 PM
Is this the fitting?
https://www.amazon.com/ACDelco-15-5438-Original-Equipment-Conditioning/dp/B0012P1SA8 (https://www.amazon.com/ACDelco-15-5438-Original-Equipment-Conditioning/dp/B0012P1SA8)
that ad references this tool:
https://www.amazon.com/MASTERCOOL-98234-Mastercool-Socket/dp/B002YKK234 (https://www.amazon.com/MASTERCOOL-98234-Mastercool-Socket/dp/B002YKK234)
Title: Re: What tools are needed?
Post by: aminga on July 23 2018, 03:19:19 PM
I was out there goofing with it T last night. I had gotten some dye to put in to see about leaks so we did than on this car and the Malibu. Ended up pulling a vac on the T so we put the other can of redtek in ad got it to "short cycle" . Big thanks to Jason as he hooked me up with a compressor as mine the bearing was going out. We swapped that on a while back and just now got around to goofing with it again. I am going to order more redtak and see what I can do with it.

On to the problem. High side port leaking in the Malibu. From the reading turns out this thing doesn't have a shrader valve and you replace the whole port. I can't seem to break it loose. Will heat help? I can hit it with the mapp gas but wasnt sure. Also might ry to put some ice on it. It seems to be 16mm but imnot having luck getting it off. Did find the replacement.
https://www.rockauto.com/en/tools/heat+&+air+conditioning,a/c+charge,a/c+high+side+charge+adapter,6536 (https://www.rockauto.com/en/tools/heat+&+air+conditioning,a/c+charge,a/c+high+side+charge+adapter,6536)

Any ideas are good ideas. We need us some cold air.
It is probably red locktighted on so a little heat might help
Title: Re: What tools are needed?
Post by: TexasT on July 23 2018, 06:21:30 PM
Yes on the valve and  guess I need a special socket? I put an open wrench on the nut looking thing on the tube and when at it with a wrench, then a flare wrench, the  a deep  socket. Didn't seem to budge. I will heat it up a bit. I poked it a bunch with the Schrader valve tool before we figured out it isn't a Schrader equipped unit so the thing is pretty beat up. Wasn't holding before didn't try to pull a vac on it. Did squirt some air in and the compressor came on. It did make a pop noise so I hope I didn't goof it up. Was going to get another port and go after it with the gas axe and see where I'm at. Was worried it might be left threads but the jnterwebz say regular threads.
Title: Re: What tools are needed?
Post by: aminga on July 24 2018, 02:45:49 PM
My dad's 98 chevy had a weird low pressure valve that didn't have a schrader valve you had to replace the whole thing  And call me weird but I don't think pulling a vac is an accurate leak test.  WHen I converted the T over to R134a it would hold vacum but loose pressure. 
Title: Re: What tools are needed?
Post by: TexasT on July 24 2018, 05:25:32 PM
From what I've read the vac isn't a test for integrity but to "boil" off the moisture in the system. I watched a guy on you tube with a rubber tipped blow gun squirt the system full of air pressure .

When the daughter brings the car back we shall heat it up and see what comes of it.
Title: Re: What tools are needed?
Post by: TexasT on July 25 2018, 08:13:23 PM
Well car came and sat all day but I had other stuff. I did order a couple of those fittings, an accumulator, tube thing, and some rubber things to seal the can tap for $35 shipped off rock auto. Not sure why I couldn't get it to blow cold but maybe the tube thing and a new accumulater will help it.

I know Charlie is up there yelling stuff and cussing me. Wish he was here to help.
Title: Re: What tools are needed?
Post by: TexasT on July 28 2018, 09:56:06 AM
https://www.youtube.com/watch?v=_R4Y7NkfWCg (https://www.youtube.com/watch?v=_R4Y7NkfWCg)

Well I see the problem. I'm going to go at it with a pliers. This was suggested but I was taught not to use pliers on stuff. I guess this is the exception.

(https://www.rockauto.com/info/577/5811347-1__ra_p.jpg)[img/]

I bought some of these but I'm not sure they will fit as the thread looks pretty big. Probably going to make a trip to the local part house and see if I can match it up. Looks like I need one for the suburban too as It doesnt hold pressure either.


Went out last night with the blacklight flashlight. Nothing conclusive. I shined(is that a word, maybe shown), it around on the lines and such but the daughter was much more enthralled with how it lit up her sock and such. At least she came out to help.


I think I'm making progress but it isn't blowing cold so we keep moving forward.
Title: Re: What tools are needed?
Post by: TexasT on August 29 2018, 06:25:15 PM
Made progress on the purple car. Put the new low side poet on there and got it to take some 134a. I have a valve that screws on to the top of the can and bought an inline ball valve that enabled me to shut the can off. This was hey helpful as I could put smaller amounts into the system and had more control of the can. I had the thing blowing cold but by the next afternoon it had lost its charge again so we have a leak and a pretty big one.

I was pretty stoked  got it to blow cold. A Buddy loaned me his Freon sniffer tool so I'm going to squirt some more in and see what I can sniff. I'm leaning toward the compressor leaking as I had put the dye into the system and all I could see with the black light was spots on the compressor housing. I think the seal I leaking and spitting the stuff on the compressor. $150 for the compressor from rockauto. I already bought the accumulator and an office tube but didn't want to "waste" them. So with another shot of the parts cannon , a new compressor will be ordered when budget permits.

On the T I had installed the "new to me" compressor(thanks again Jason) as above. And put the last can of red tek 12a in . I put the gauge back on it and it was still at 60 psi on both high and low. Pretty happy with that. I went back to eBay to see about some more 12a but none was listed so I'm not sure where I'm going from here. I guess I'm going to pull it all apart, clean it out and put the new accumulator and office tube and put the 152a in.
Title: Re: What tools are needed?
Post by: good2win22 on August 30 2018, 09:19:44 AM
I have a couple more compressors if that one turns out to be an issue. Let me know
Title: Re: What tools are needed?
Post by: Forzfed on August 30 2018, 03:17:29 PM
From what I've read the vac isn't a test for integrity but to "boil" off the moisture in the system. I watched a guy on you tube with a rubber tipped blow gun squirt the system full of air pressure .
I was going to say that.  There are systems that run in a vacuum but our car isn't one.
Title: Re: What tools are needed?
Post by: Pyro6 on August 31 2018, 12:48:00 AM
Rich it looks like you have a huge leak. Is 60 and 60 with the compressor running? You're right, when you put the system into a vacuum it is boiling moisture out of the system, usually in several hours. The last thing you should be installing is the accumulator and orifice tube after you have it all figured out.
Title: Re: What tools are needed?
Post by: TexasT on August 31 2018, 07:00:10 AM
That 60psi on the T was just static. 60psi on both sides after I put the one can in a few weeks ago. Then came back and just put the gauge on to see where I am. Appears to be holding the charge and the compressor was short cycling with the amount I had. Just didn't have any more to put in. Apparently in Canada this red tek stuff is pretty common as it was Jim(gussezgs) who turned me on to it.
Title: Re: What tools are needed?
Post by: aminga on August 31 2018, 10:10:51 AM
From what I've read the vac isn't a test for integrity but to "boil" off the moisture in the system. I watched a guy on you tube with a rubber tipped blow gun squirt the system full of air pressure .
I was going to say that.  There are systems that run in a vacuum but our car isn't one.
That's correct Boil off the moisture.  Vac is useless for leak testing A/C Systems.  In fact I just had to have one of the head units replaced on my Upstairs Home AC and they leak tested it with nitrogen not vac
Title: Re: What tools are needed?
Post by: TexasT on August 31 2018, 11:02:12 AM
I've been watching Craigslist for a nitrogen cylinder and regulator so I can do that too. Just haven't found the "right" deal yet. Gotta be careful of what you buy so your lws will fill it or trade it for a full.
Title: Re: What tools are needed?
Post by: daveismissing on August 31 2018, 11:03:13 AM
My old truck had a hard to find leak and they pressurized with nitrogen to find the compressor would leak at higher pressures
Title: Re: What tools are needed?
Post by: TexasT on August 31 2018, 11:08:12 AM
I was thinking of looking into a seal kit for the compressor on there. It definitely was compressing as the thing made cold. I guess we need to pull the clutch and reinstall. I bought some little tools for that and they seemed to work. Might hit eBay and rockauto and see what I can come up with.
Title: Re: What tools are needed?
Post by: TexasT on April 23 2019, 08:44:45 AM
I'm back over on the T. New to me compressor, and some more cans of the redtek 12a. Got I to go in and had 145-150psi on high side and it would work its way down to 25-30psi on the low. Was blowing pretty cold bit I didn't measure with thermometer. Does make condensation on windshield so next is the blend door and getting it to blow out of the vents.
Title: Re: What tools are needed?
Post by: Steve Wood on April 23 2019, 09:21:26 AM
In time for summer! Which comes right after monsoon season
Title: Re: What tools are needed?
Post by: Scoobum on April 23 2019, 09:27:09 AM
That's quite the steering wheel.
Title: Re: What tools are needed?
Post by: TexasT on April 23 2019, 07:20:34 PM
170k miles worth. Seen more than a day or two in the sun.
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