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Old 06-30-2018, 05:24 PM   #1
BurntValve
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Default 1993 240 ac orifice tube install

Trying to replace the orifice tube on my 1993 240, how do i get this thing in? Its pretty flimsy plastic and i cant seem to get it seated all the way in without bending or breaking it.
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Old 06-30-2018, 07:01 PM   #2
dl242gt
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I don't recall anything holding the orifice valve from installation. Maybe you have some debris in the line? Try cleaning out the a/c line? Maybe someone left an extra one in there?
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Old 07-01-2018, 03:45 AM   #3
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Lubed the o-ring and pipe with compressor oil?
Putting it in the right way around (short end first)?
Putting it in the right pipe (frame rail style: pipe to firewall)?
Goes into pipe 35 short end first, then pipe 32 traps it.
(Orifice is 56, label blocked by "58").




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Old 07-01-2018, 11:03 AM   #4
DET17
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I have seen these stuck quite tight; needle nose and pull hard.

If it breaks, remove pipe then drill out and flush with air and then AC flush.
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Old 07-04-2018, 09:39 PM   #5
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Ok i finally got it, after i broke 2 of them. Ended up using 220 grit sandpaper rolled up to clean out the line,flushed and blew out with air, then lubed both the orifice tube and the a/c line with pag oil and got it to pop in all the way, what a pain in the ass haha.
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Old 07-04-2018, 10:46 PM   #6
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Dang... I'm getting ready to do this (if I can find someone to evacuate the system and let me leave) and this isn't inspiring lol
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Old 07-10-2018, 11:38 AM   #7
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It was a pain,

I had to ask my neighbor for assistance, he had special snap-on AC orifice installer / remover tools.
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Old 07-10-2018, 11:48 AM   #8
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I thought the 93 240 used a TXV near the evaporator??? Did any 240 use a TXV?
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Old 07-10-2018, 12:27 PM   #9
blkaplan
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Quote:
Originally Posted by PromiseRing View Post
I thought the 93 240 used a TXV near the evaporator??? Did any 240 use a TXV?
Not sure, I know my Volvo 134A conversion kit came with a different orifice tube.
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Old 07-10-2018, 12:55 PM   #10
DET17
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Quote:
Originally Posted by PromiseRing View Post
I thought the 93 240 used a TXV near the evaporator??? Did any 240 use a TXV?
Pre 91 used the expansion valve.
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Old 07-10-2018, 01:21 PM   #11
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Quote:
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Pre 91 used the expansion valve.
Good to know thanks. I figured newer systems were 'more advanced' with the TXV. Seems that the same does not hold true with 7 series, 1990 uses an orifice tube.
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