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

Orifice Tube

Thread Tools
 
Search this Thread
 
Old Aug 7, 2006 | 12:59 PM
  #1  
Coconut's Avatar
Coconut
Thread Starter
Racer
10 Year Member
 
Joined: Jan 2006
Posts: 288
Likes: 1
Default Orifice Tube

I started working on an A/C system today, & the orifice tube split in half when I tried to remove it. It is the expensice self-adjusting type. The top came off, but the bottom is still in the lower evaporator tube, & is held in place where the tube is pinched from the factory. Are there any suggestions for the best way to get this thing out, before I have to buy a repair kit?
Thanks.
Reply
Old Aug 7, 2006 | 01:20 PM
  #2  
BADDUCK's Avatar
BADDUCK
Le Mans Master
 
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Default

I thought this was gonna be nasty.
Reply
Old Aug 7, 2006 | 01:23 PM
  #3  
SunCr's Avatar
SunCr
Le Mans Master
10 Year Member
 
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Default

Napa might sell a remover - they do sell a repair kit wherein you cut out the old pipe and put in a new one using compression fittings. www.ackits.com might have something too. Line shouldn't be bent or creased at the orifice fitting, so if it is, you should probably replace the Evaporator or use a repair kit.
Reply
Old Aug 7, 2006 | 05:22 PM
  #4  
Coconut's Avatar
Coconut
Thread Starter
Racer
10 Year Member
 
Joined: Jan 2006
Posts: 288
Likes: 1
Default Straight Tube

The evaporator is new, & all is straight. I have 2 used evaporators, also. Apparently, the line constricts after getting cold, The tube won't come out of any of them. The orifice tube broke on all 3. I have a tool to remove them, also. The tube always splits in half. I know the repair kit is available, but I hate to cut a new evaporator. I'm thinking about using a small fishing hook (maybe treble) with some shark wire on the end. Maybe I can hook it & fish it out. I thought that perhaps some company has made a double J - hoook tool that could be closed with a scissor-type handle so as to pierce the orifice tube, & allow for removal.
Reply
Old Aug 7, 2006 | 05:39 PM
  #5  
comp's Avatar
comp
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Default

Reply
Old Aug 7, 2006 | 08:54 PM
  #6  
RonVette2's Avatar
RonVette2
Melting Slicks
10 Year Member
 
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
Default

When I was in AC school many years ago they had a special tool made especially to take out broken orifice tubes that the top break off of them, it basically screws into the remaining part lodged down in the tube and then you can turn it enough to get the remaining piece out.

You do know that usually the reason(s) for this type of situation is from trying to get the orifice tube out without using the proper tool, ie: it isn't needle nose pliers, I'm not trying to be a as* but just educating you in case you didn't know.
Reply
Old Aug 7, 2006 | 09:33 PM
  #7  
Coconut's Avatar
Coconut
Thread Starter
Racer
10 Year Member
 
Joined: Jan 2006
Posts: 288
Likes: 1
Default How To

I know what tool to use. It is even posted above that I have one. Thanks for making sure, though. I have tons of tools. I fimly believe in 2 basic rules!!!

1) NEVER force anything.
2) If it's difficult, there is probably a tool made for it.

Here is the solution I came up with to get it out.....
I used a screwout tool (I believe it was #4). It is the screw remover that looks conical in shape, & has screw threads on it.
I carefully turned it counterclockwise to attach itself to the bottom half of the orifice tube. I used NO down force. That could move the orifice tube even farther down, & the tool would no longer reach. The tool grabbed the orifice tube, & I carefully continued to turn it counterclockwise until I felt a little resistance. After 1/2 more turns, I lifted it right out with the screwout tool. So, that's how to remove an orifice tube if it separates. At least it worked for me. Once again, this was the expensive self-adjusting orifice tube. It has a single loop on the top for removal. The normal ones have a couple of grooves on the side for the removal tube to grab hold of.

To get the new (regular) orifice tube in, I used an old trick for installing new strips in a roots-type blower. I put in on ice for a little bit of time (don't freeze it) while keeping it in the package. It compresses just a little, & becomes easier to install after the PAG oil is applied.

Thanks!

P.S. RonVette2, I really like the rims on that yellow Corvette. It looks classy.

Last edited by Coconut; Aug 7, 2006 at 09:35 PM.
Reply
Old Aug 7, 2006 | 10:09 PM
  #8  
RonVette2's Avatar
RonVette2
Melting Slicks
10 Year Member
 
Joined: Jun 2006
Posts: 2,923
Likes: 1
From: Cleveland Tennessee
Default

Thanks for the comment on the wheels. I did read the whole thread before replying, sorry I didn't catch all about the tools, and like I tried to make sure above, I didn't mean any harm or implying about your knowledge of tools or experience, I'm not an expert, just giving my two cents. Glad to hear that you got it out with no issues, I just didn't want you to have to get one of those cut and replace the line kits when I didn't think it was neccessary to go to that much extreme for your issue, although I have seen some butchered up ones in the past as I'm sure you probably have too
Reply

Get notified of new replies

To Orifice Tube

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer




All times are GMT -4. The time now is 11:33 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE