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Cleaning

mlelah on Wed May 21, 2008 9:13 AM User is offline

Year: 1989
Make: Honda
Model: prelude
Engine Size: 2.0
Refrigerant Type: R12
Country of Origin: United States

Hi, I'm replacing my condenser and drier in preparation for converting from R-12 to R134. Before putting everything together to evacuate and fill, how should I clean the original fittings and connectors? Thanks.

TRB on Wed May 21, 2008 10:35 AM User is offlineView users profile

Why do they need cleaning? Soft bristle brush and use Nylog on the new o-rings.

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mk378 on Wed May 21, 2008 10:47 AM User is offline

I use paper towels. O-ring seals can tolerate some dirt, but the thing that will cause leaks is fibrous stuff like cloth fibers or hair.

mlelah on Wed May 21, 2008 6:20 PM User is offline

Thanks. It looks like there is something kind of lubricant the threads. I'm guessing that this is Nylog?

Do regular nylon O-rings work or are there special O-rings for automotive a/c applications? Thanks.

mlelah on Thu May 22, 2008 12:25 PM User is offline

What's an alternative to Nylog that I can purchase at my local store? Thanks.

GM Tech on Thu May 22, 2008 2:23 PM User is offline

Why would anyone put anything but some light oil (refrigerant oil) on the threads of a connection? -- That is the way the assembly plant factories always did it- before they went to manifold connections......

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

TRB on Thu May 22, 2008 2:30 PM User is offlineView users profile

Quote
Originally posted by: GM Tech
Why would anyone put anything but some light oil (refrigerant oil) on the threads of a connection? -- That is the way the assembly plant factories always did it- before they went to manifold connections......

One reason would be to help the GM evap connections from seizing up on many rear systems. Most industry or repair shops have used oil in the past. But why not use a better product when it's available!



-------------------------
When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

mlelah on Fri May 23, 2008 10:20 AM User is offline

Does anyone know what kinds of stores sell either Nylog or refrigeration oils? I don't have time to wait to order on-line, but I can't find these products anywhere. Thanks.

TRB on Fri May 23, 2008 10:32 AM User is offlineView users profile

Johnstone

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When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

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