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Hooking up guage set

Boomer_106 on Thu July 31, 2008 5:36 PM User is offline

Year: 1988
Make: Chevrolet
Model: IROC-Z
Engine Size: 350
Refrigerant Type: R-12
Ambient Temp: 88
Country of Origin: United States

Hello, I have an 88 Iroc-z. It's blowing warm air. I bought a gauge set from ACkits. Here is the set http://www.ackits.com/merchant.mvc?Screen=PROD&Store_Code=01&Product_Code=66773&Category_Code=RefrigerantGaugeSets



This is my first venture into AC. I'm just doing it for myself. I want to learn. I was going to start by simply taking a pressure reading. The problem is the gauges don't seem to fit on one of the fittings. This set as you can see in the pic includes an adaptor which doesn't fit either. It appears that it must need a special adaptor. Is this unusual? If so, now what do I need to go buy? I've included a pic to show the car fittings. The one on the accumulator itself fits fine. The one with the red arrow is the one that is too small. I'm pretty certain the one on the accumulator is the low side but, if I'm mistaken, feel free to straighten me out.

Chick on Thu July 31, 2008 5:39 PM User is offlineView users profile

small pic for these tired old eyes, but yes, the accumulator is the low side, the high side will need an adaptor as it's smaller. Those are R12 fitting correct, and you have R12 guages??

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Boomer_106 on Thu July 31, 2008 5:48 PM User is offline

Quote
Originally posted by: Chick
small pic for these tired old eyes, but yes, the accumulator is the low side, the high side will need an adaptor as it's smaller. Those are R12 fitting correct, and you have R12 guages??

Hey chick, thanks for your reply. The pic looked alot bigger. Seems like this board made it small. I see an upload button here so, I'll try that. Yes I have gauges. They are the mastercool 66773. I got them from here.

http://www.ackits.com/merchant.mvc?Screen=PROD&Store_Code=01&Product_Code=66773&Category_Code=RefrigerantGaugeSets


Here is the car pic.

http://www.autoacforum.com/forumimages/th_ACfittings iroc.jpg

I see that doesn't make it any larger. Any idea?

Edited: Thu July 31, 2008 at 5:50 PM by Boomer_106

Chick on Thu July 31, 2008 5:55 PM User is offlineView users profile

When using that set for R12, you will need this high side adaptor which most parts stores have if you can't wait on an order from ackits.com (recommended)

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

Boomer_106 on Thu July 31, 2008 6:03 PM User is offline

Quote
Originally posted by: Chick
When using that set for R12, you will need this high side adaptor which most parts stores have if you can't wait on an order from ackits.com (recommended)

Thanks alot chick. I wish I had known that when I ordered the gauge set. I would have ordered that as well. I have an electronic leak detector I got from Ebay. It's a blue point ACT725. Since I'm almost certain I have a leak, (because I've added refrigerant to this car before) should I also get one of those dye kits or should the electronic unit be sufficient? Once again before doing any service I will take pressure readings but, I figured I would ask this now. Thanks alot for your time

Chick on Thu July 31, 2008 6:19 PM User is offlineView users profile

I add UV dye to every job I do, don't go crazy with it though, but a little bit really does aid in finding leaks in hard to reach places.. Just another tool in your AC toolbox...

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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

mk378 on Thu July 31, 2008 11:51 PM User is offline

GM compressors are real prone to leak at the shaft seal. Check there first. You can make sure that your detector is working by sniffing at a service port right after you take the cap off. There will always be some refrigerant there, but with the cap on you shouldn't lose any.

Boomer_106 on Fri August 01, 2008 12:26 AM User is offline

Quote
Originally posted by: mk378
GM compressors are real prone to leak at the shaft seal. Check there first. You can make sure that your detector is working by sniffing at a service port right after you take the cap off. There will always be some refrigerant there, but with the cap on you shouldn't lose any.


Thanks mke. I will check that.

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