C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

a/c question

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Old Jul 24, 2003 | 08:01 AM
  #1  
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Default a/c question

Wich way does the freon flow through the evaperator on an 86? On am 86 a line comes in from the top and goes out throught he bottom where the orfice is. The reason i ask is i whant to make sure i put the new orfice in correct.
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Old Jul 24, 2003 | 10:57 AM
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Default Re: a/c question (jtfrog)

Inlet is bottom - contains the orifice; outlet is top. Use a backup wrench when disconnecting the inlet - the evaporator side is easy to bend and old connections may be rusted. If it's damaged, NAPA makes a repair kit.
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Old Jul 24, 2003 | 08:59 PM
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Default Re: a/c question (jtfrog)

This is the new smart vov orifice tube. I beleive the pointed end goes in first. would this be true?

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Old Jul 25, 2003 | 01:09 AM
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Default Re: a/c question (jtfrog)

It'll only go in one way - the same as the old one that you take out. If you try to force it, you'll ruin it, so pay attention when you take it apart.
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Old Jul 25, 2003 | 01:57 AM
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Default Re: a/c question (jtfrog)

Has you can see above this is different from the stock one. According to the instrucktions the flow of the freon goes toward the point. So if the inlet is the bottom would this mean arrow up? :confused:
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Old Jul 25, 2003 | 12:26 PM
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Default Re: a/c question (jtfrog)

I don't have a spare to compare it with - I found out the hard way years ago that it's only going to fit one way, but the rectangular, flat end is usually at the top (also so you can get a good grip on it to remove it). If there is an arrow on it, it should point down. Hopefully, that VOV will fit your year.
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Old Jul 25, 2003 | 05:17 PM
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Default Re: a/c question (SunCr)

Thanks, it points down.
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Old Jul 25, 2003 | 05:29 PM
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Default Re: a/c question (jtfrog)

Small AC line = high pressure side = evap input
Large AC line = low pressure side = evap output

Filter goes to the high pressure side,..... if the filter was on outlet of the orifice,... junk could clog the orifice,..... i.e. The filter is ther to protect the orifice.
Make sense?
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