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  #1  
Old 05-14-2009, 11:45 AM
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Exclamation 300d ac o rings?

Are the larger o rings for the expansion valve to the evaporator the same size as the larger o ring from the compressor to the condenser?

Last edited by badgator; 05-14-2009 at 01:53 PM.
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  #2  
Old 05-14-2009, 11:51 AM
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What year? Not all 300D's are the same.

If you buy a typical a/c o-ring assortment that most parts stores sell, you should be covered.

Last edited by tangofox007; 05-14-2009 at 11:57 AM.
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  #3  
Old 05-14-2009, 12:10 PM
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Sorry, 1985 I ordered individual parts, the drier to condenser wasn't listed. as the green o rings were dirt cheap. Last year Autozone gave me the wrong kit, Napa had to order 2x because they lost it -85 300sd.
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  #4  
Old 05-14-2009, 12:13 PM
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Go to the auto parts store and look for metric or European model o-rings. Make sure their the green colored ones.

Danny
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  #5  
Old 05-14-2009, 01:38 PM
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Is there a specific kit that's available or is it just a random assortment of O-rings?
I'd like to get my A/C put together and working before the summer heat sets in.
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84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
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  #6  
Old 05-14-2009, 01:40 PM
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Napa has a kit for 300d 300sd like $14 ?
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  #7  
Old 05-14-2009, 01:49 PM
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I did use the evap/exp valve o ring on the condenser to compressor line. Installed new Behr drier + mineral oil, flushed condenser. I vacuumed the system down for a hour, left gauges on, I'll see if it holds. The Florida sun was beating down on me so I packed it up and jumped in the pool, oh well, R12 tomorrow.
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Old 05-14-2009, 02:21 PM
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I want to try to get mine together before we get any heat. I don't have a pool to jump into.
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84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
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  #9  
Old 05-14-2009, 03:17 PM
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A lawn sprinkler / hose will work too, you might want your kids playing around or the neighbors might think with your Mercedes obsession you finally cracked.
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Old 05-14-2009, 03:35 PM
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Quote:
Originally Posted by badgator View Post
A lawn sprinkler / hose will work too, you might want your kids playing around or the neighbors might think with your Mercedes obsession you finally cracked.
Might think?
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84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012
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  #11  
Old 05-15-2009, 03:08 PM
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ICE COLD AIR

Yeah, vacuum held since yesterday, filled with r12.

Ice cold air, baby !!!
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  #12  
Old 05-16-2009, 02:31 PM
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Check CL you might pick up 2 cans like $20
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  #13  
Old 05-16-2009, 02:42 PM
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I used to think that my system would hold vacuum overnight, until I bought a digital vacuum gauge. The needle on my gauge set doesn't move at all, but you should see that digital display.
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