Orifice Tube Install

[WelmoedJ]

The orientation in the original picture is correct...

My bad, guys!
I didn't notice that until the large picture was entered.
Apologies to all.

Let's try and do it better in 2012.

[DavidProehl]

Thanks Ron & Jim.

Here is a better picture of how far it slides in.


My pipe looks straight, not sure how I would straighten it any more. I originally tried installing this when the evaporator was outside the car (before I had a chance to possibly bend it in any way), but had the same issue. I figured it was because I didn't have lubricant. I now have lube, but things are more difficult since the evaporator is installed.

I didn't quite follow the tapered rod suggestion, are you talking about using something like this to tap it in?

Tapered rod:

[Ron]

I guess it goes w/o saying but the rod I mentioned above should be tapered on the end only...

=======
LOL WelmoedJ



EDIT: MAN, I'm having bad timing today lol.

The rod MUST be round! ...you would be reshaping the tube. I hesitate to say because if it gets stuck you will hate me lol, but first time I did it years ago, I went through some deep well sockets (because they are tapered) and an extension that locks onto it... I do a lot of AC work so I wound up making one out of an extension. Like I said before there is a crimp in the tube that the OT butts up against. No need to go that far -- if you spread it open, the evaporator will eat the ot. I said to hold behind the crimp so as not to distort the area that the OT goes in any further. Use lots of AC oil! Got me?

[Soundkillr]

Yea dont open the crimp. I once got one that had a bad crimp. I knew i shouldnt have installed it, but the vendor assured me it would be ok. Got it charged and 30 seconds later it sucked up the orafice tube. That was fun. Got to do the whole job over. I wasnt happy.

I guess it goes w/o saying but the rod I mentioned above should be tapered on the end only...

=======
LOL WelmoedJ



EDIT: MAN, the I'm having bad timing today lol.

The rod MUST be round! ...you would be reshaping the tube. I hesitate to say because if it gets stuck you will hate me lol, but first time I did it years ago, I went through some deep well sockets (because they are tapered) and an extension that locks onto it... I do a lot of AC work so I wound up making one out of an extension. Like I said before there is a crimp in the tube that the OT butts up against. No need to go that far -- if you spread it open, the evaporator will eat the ot. I said to hold behind the crimp so as not to distort the area that the OT goes in any further. Use lots of AC oil! Got me?

[Bitsyncmaster]

You're right about the pulling.
However as the OT has to be put into the pipe, my afore statement sticks.
I've assisted in the replacement of a couple of OTs in several D's and the way I described it, has been the way we did it.

Now that I see the photo (I'm at home)....It does show it backwards from the way I install them,

[Bitsyncmaster]

I had one break off with nothing left to grab. I pressurized back at the compressor and blew it out with about 100 PSI.

[Ron]

Yea dont open the crimp. I once got one that had a bad crimp. I knew i shouldnt have installed it, but the vendor assured me it would be ok. Got it charged and 30 seconds later it sucked up the orafice tube. That was fun. Got to do the whole job over. I wasnt happy.

Knowing you, I'd like to have heard the next phone call LOL!!!

No need to get that close to it because there is plenty of room even on the short side. In this case I would keep tapping and checking until I knew the hose would never hit the OT plus a tad and move on... If the pressure ever moves it, the crimp will grab it.

[Soundkillr]

....Twas a fun phone call!

Knowing you, I'd like to have heard the next phone call LOL!!!

No need to get that close to it because there is plenty of room even on the short side. In this case I would keep tapping and checking until I knew the hose would never hit the OT plus a tad and move on... If the pressure ever moves it, the crimp will grab it.

[DavidProehl]

Now that I see the photo (I'm at home)....It does show it backwards from the way I install them,

Dave - Are you saying the photo in my last post has it in backwards? I can definitely slide it in way further, and very easily, if I flip it around. All the previous posts though indicate I'm installing it the proper direction.

[Bitsyncmaster]

I just went out to look at an old orifice tube (used). And it does have trapped "dirt" on the long screen side of the tube. So the long side is indeed the inlet as shown in the later photo. You only need to insert the OT until the O-ring seals. Don't force it in to far or you will be sorry when you can not remove it later.