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.

OK thanks for clarification. If it works for you, I will delete / edit old posts for which I now have answers. Is it OK for me to link back to the locked thread so others can find it if they are interested? Are the images with part numbers specs and brand names as I copied a problem if they don't ha...

First let me thank the people here that have helped me over the last two months! This evening my ongoing topic "Plans for 90 civic A/C rebuild with newer gen Sanden compressor - remaining questions" was locked by the administrator for link abuse. It was never my intent to violate rules or ...

4) Hard line flushing: I have all hard lines removed and disconnected from each other and assume that short segments will help with the most effective cleaning. I’ve read a lot about line flushing and at this point think I’m better off having that done for me. Too many variables and I suspect the r...

3) O-ring lubrication: Obviously necessary. I’d prefer not to have to get more double end capped PAG oil just for o-ring lube since the compressor was shipped with the correct system amount. I’ve read about Nylog Blue and Red and it is appealing due to its high viscosity and thus ability to seal mi...

2) O-ring sizing and quality: I am concluding that proper o-ring selection is easier said than done. I might be better off leaving the o-ring selection to the mechanic who finishes the evacuation, leak testing, and charging. At least, if there is a leak, they cannot blame me for having chosen poorl...

remaining topics for discussion: 1) Binary HPCO/LPCO pressure switch replacement: Besides the facts that the original binary switch is 32 years old and the crimped portion of the case is badly corroded, I think it makes sense to change to a higher pressure cut-off for R-134a as spec’d for the ‘94+ C...

More to come soon. Uploading images isn't cooperating well. Will try again later this evening.
Remaining topics will follow, one per post.
Uploading images is apparently limited to 3 per post. I'll try combining some of them using a photo editor.

Quick Summary of where we are in the project: 90 Civic being adapted to use newly manufactured Sanden 4993 used in next gen Civic. The system was previously converted to R143a by an honest but not expert local mechanic. The original TR-70 compressor appeared to be working, and the conversion only in...

A couple of weeks turned into a month (visitors, taxes and doctor) but I'm back. Post by ice-n-tropics » Mon Mar 20, 2023 1:40 pm FYI, 4993 is recommended for CW applications. Civic is CCW. Wobble/swash plate compressors shift anti rotation gear full engagement verses piston TDC to advanced timing t...