A/C Vacuum pump

[Dan_69GTX]

Dan, good explanation of moisture complications, I was just making my point as short as possible.

Thanks!

 

[Dan_69GTX]

Hey JR, How goes the battle?

 

[mwilson]

Took a picture of the Snap On unit drawing vacuum the other night, had to check the wife's van. Thought it had too much R134A in the system and I was correct.
After one misfire (the thing switched over to KG instead of LB) I had to abort, suck it back out and fill again. Now it works great.

 

[mwilson]

Shop just bought a new Robinair 34288NI unit. About 3,000.00....only thing I don't like...It will remove the oil while reclaiming BUT does not put new oil back in, you have to have a different doohickey to put the oil back in (The Snap On units put new oil in automatically)....on the fence there for sure...

https://www.robinair.com/products/new-economy-r-134a-recover-recycle-recharge-machine

 

[Dan_69GTX]

About 15 years ago I bought a new Robinair unit and some other Robinair stuff. Had nothing but problems with all of it. 2 new machines didn't work - out of the box! Gave me a very BAD opinion on their equipment (older stuff was fine). So, I've not bought anything labelled Robinair since.

I've now downsized and got rid of all the "do-it-all" machines and I do everything manually. I don't do near the volume I did and I have had less issues since (correct charging, better air purging from lines, etc). I haven't found anyone else around here that will still do R12.

Added 2oz R-134a to my wife's corolla and now it cools MUCH better!

 

[JR]

Hey JR, How goes the battle?

No progress lately, too many irons in the fire at the moment. Between helping the mother in law get moved, fixing and selling her car for her, and cutting up a tree that came down on a friend's house I haven't had any free time.

Brought my 3rd load home last night. Got at least two more to bring home. I either need to get a highway worthy dump, or get rid of my rust bucket and get a dump trailer.

 

[Dan_69GTX]

Yea, I can relate - my "todo" list is WAY too long. Keep us posted when you do make time to do the A/C.

 

[CRodi]

Took a picture of the Snap On unit drawing vacuum the other night, had to check the wife's van. Thought it had too much R134A in the system and I was correct.
After one misfire (the thing switched over to KG instead of LB) I had to abort, suck it back out and fill again. Now it works great.

View attachment 108147

Mike, I'm just curious how you ended up with too much R134A, other than some one else serviced it at one time, and overcharged it. Is this common?

 

[mwilson]

Mike, I'm just curious how you ended up with too much R134A, other than some one else serviced it at one time, and overcharged it. Is this common?

Well, uuuummmm..it was me in a hurry last fall......scale is getting out of whack at home...can’t blame anyone but myself..

 

[mwilson]

It was ok until we got these hot muggy days, she said it was moaning....I bet it was...

 

[CRodi]

Well, uuuummmm..it was me in a hurry last fall......scale is getting out of whack at home...can’t blame anyone but myself..

Ok

That explains it. At least you knew what it was, and caught it in a hurry.

Thanks

 

[fest3er]

Well, uuuummmm..it was me in a hurry last fall......scale is getting out of whack at home...can’t blame anyone but myself..

Just don't start swearing at yourself in public. Or in here.