Building A/C system, need to know line sizes and which fittings
07-07-2011, 07:50 AM
#1
Building A/C system, need to know line sizes and which fittings Can somebody help me with this. I need to know what line sizes GM uses factory for the high side and low side. I am running a compressor from an LQ9 and the rest of the parts are from a f-body.
Thanks!
Thanks!
07-07-2011, 07:54 PM
#5
Yes they do. It's specific to AC systems but looks like braided line on the outside. It wirks good but you have to be very precise when cutting and fitting lines. A jagged or crooked cut edge on the composite inner tube where it will be tightened into the fitting can cause a leak. It's not impossible for a novice to do but definately more finicky than regular AN hoses.
On most systems the liquid line (high side)will be -6 from the expansion valve all the way to the condenser.
On the vaccum (low side) the size will likely be -10 from the compressor to the evaporator, and -8 from the compressor to the comdenser IIRC.
On most systems the liquid line (high side)will be -6 from the expansion valve all the way to the condenser.
On the vaccum (low side) the size will likely be -10 from the compressor to the evaporator, and -8 from the compressor to the comdenser IIRC.
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123pugsy (09-13-2023)
07-07-2011, 11:08 PM
#7
TECH Regular
The high side vapor line from the compressor to the condensor is -8 AN, the high pressure liquid line from the condensor to the evaporator is -6 AN, and the low side line is -10 AN.
If you have never tried the EZ-clip lines from Aeroquip, you really need to try them! They are way smaller OD than conventional rubber hoses and they will not abrade away paint on everything they touch like braided stainless hoses do! They are very easy to fabricate in your own shop and really look OEM. Vintage Air carries them in their catalog, or any full service Aeroquip dealer should sell them. I have used them on the last 4 cars, and can't imagine ever using anything else.
Regards, John McGraw
If you have never tried the EZ-clip lines from Aeroquip, you really need to try them! They are way smaller OD than conventional rubber hoses and they will not abrade away paint on everything they touch like braided stainless hoses do! They are very easy to fabricate in your own shop and really look OEM. Vintage Air carries them in their catalog, or any full service Aeroquip dealer should sell them. I have used them on the last 4 cars, and can't imagine ever using anything else.
Regards, John McGraw
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07-08-2011, 07:35 AM
#8
They are not AN hoses - I shouldn't have used the "-"
They are AC "Barrier" hoses the are referred to as #6 and #8, etc.
http://www.coldhose.com/cat/hose-by-the-foot-5.php
They are AC "Barrier" hoses the are referred to as #6 and #8, etc.
http://www.coldhose.com/cat/hose-by-the-foot-5.php
