ac orifice tube - Ford Powerstroke Diesel Forum

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post #1 of 11 Old 07-02-2012, 02:13 PM Thread Starter
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ac orifice tube

anyone use one thats smaller or bigger than factory that makes air blow colder? if so do you have a part number?

08 F250 KR
08 F250 XL
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post #2 of 11 Old 07-02-2012, 02:27 PM
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Originally Posted by Capt dong View Post
anyone use one thats smaller or bigger than factory that makes air blow colder? if so do you have a part number?
Don't change that up. It's manufactured and designed to flow a specific amount of refrigerant. Stick with the stock size.
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post #3 of 11 Old 07-02-2012, 10:03 PM Thread Starter
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some of the 73 and 60 guys changed theirs up. figured it might work with the 64.

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post #4 of 11 Old 07-07-2012, 04:29 AM
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I've heard of this as well. Anyone with more info on it? My A/C could use a little extra help in this heat.
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post #5 of 11 Old 07-07-2012, 09:30 AM
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Im interested as well.

2008 (Job 1) F250 King ranch 4x4, snow plow prep package with 2.5 level. Black Maxx, B&W Diehard platinums. Dieselsite coolant and transmission filters, NCU Motorsports/amsoil oil bypass kit. Turbo blankets, 5.5 PMF traction
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post #6 of 11 Old 07-07-2012, 09:42 AM
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Contact BP Diesel. They offer an orifice tube to improve ac cooling with their kit.
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post #7 of 11 Old 07-07-2012, 09:55 AM
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I'm not familiar with BP diesel?

2008 (Job 1) F250 King ranch 4x4, snow plow prep package with 2.5 level. Black Maxx, B&W Diehard platinums. Dieselsite coolant and transmission filters, NCU Motorsports/amsoil oil bypass kit. Turbo blankets, 5.5 PMF traction
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post #8 of 11 Old 07-07-2012, 09:56 AM
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Installation Stage 3: Air-conditioning Adjustment - Bumper Installation Version Only
NOTE – IN SOME HOTTER CLIMATES, A SMALL ADJUSTMENT TO THE AIR-CONDITIONING SYSTEM MAY BE REQUIRED. THIS MAY BE NECESSARY BECAUSE ALL OF THE HEAT FROM THE ENGINE OIL COOLER IS NOW BEING DUMPED IN FRONT OF THE CONDENSER. THE SMALL ADJUSTMENT OUTLINED BELOW WILL COMPENSATE FOR THIS CHANGE.
1. Reclaim the refrigerant from the AC system in accordance with local and EPA regulations.
2. Remove the OE orifice tube and replace with a GM white orifice tube (Four Seasons Part# 38623).
3. Evacuate and recharge the AC system with an additional 6oz of refrigerant (more than the OE specified amount). Test drive at highway speeds and add up to an additional 12oz of refrigerant as needed.
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post #9 of 11 Old 07-08-2012, 03:43 AM
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So where is the orifice physically located? I know its somewhere in the liquid line that runs from the condenser (out by the rad) to the evaporator (in the dash), but not sure where in that line and that line is a little hard to follow at times.
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post #10 of 11 Old 01-03-2015, 09:55 AM
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Anyone has tried this to give evaluation of the mod?

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