Possible good news for some lost links. I was looking for some links referred to in more recent posts and two of them didn't work. They were both .cfm posts. I have been aware of and used the internet archive (also known as the Wayback Machine) for some old sites that were no longer available. Just ...

Agreed. While that line is discontinued, it supposedly was the replacement for three other Honda part numbers, and all three of those are still in stock (whew), so I will be ordering it.

Thanks John, I mentioned that the TXV equalization tube was completely blocked with hard crud. I forgot to mention that in cleaning up the fitting end of the liquid line to the TXV that the old o-ring was also fused to the liquid line hard as a rock. After cleaning it up, I think that line end was c...

I suspect I’m over analyzing at this point, (and wouldn’t mind being told that!) where I proposed: makes me wonder if there are scenarios where the refrigerant might start to condense in the suction line as it makes its way to the compressor suction port such as at an abrupt reduction in line diamet...

Thanks JohnHere. The original TXV is completely plugged up at the end of the external equalization tube and the plug matter is hard as cement and a brownish color. In fact, the plug extended into the port on the output tube of the evaporator such that it was very hard to remove the tube from the eva...

I’ve had to postpone this project for almost a year. Sometimes life gets in the way but I’m back to it now. At this point I’m dealing with selecting a replacement TXV, which should have been straightforward but the two main aftermarket manufacturers disagree on their superheat spec, (UAC = 4.0, part...

Almost forgot, there will also be a new binary pressure switch with higher cut-out pressure (455 PSI as in the 94+ civic w/R-134a) to allow operation at higher ambient temps / humidity without premature compressor shutdown. I'm also replacing the temp sensor in the evaporator since everything is tor...

""I know this sounds unorthodox, but could a detergent (surfactant such as Dawn dishwashing liquid + water) under pressure be used as a pre-flush before traditional flushing solvents to save on solvents" Egads, how in the world did I miss this???!!! Hopefully you haven't actually don...

To get new readers up to speed here is a quick summary of where we are in the project: 90 Civic being adapted to use newly manufactured Sanden 4993 used in the next gen Civic. Initial attempts to find a new / not rebuilt TR-70 failed and led to much research over a few months. I found and studied th...

Tim, Thanks for your patience. I have now removed the old posts from this topic since I have answers on most of those. If anyone is interested in the original locked topic, It is located in the Automotive Air Conditioning Procedures, Tips and FAQ forum.

I will continue with unanswered questions.