Need help. Can’t seem to find a place to purchase an Alma compressor model # 51-16197A It’s for a 69 Camaro. Any help appreciated. Ed Believe you called and I provided a quote. New A6 (steel) are only made by Alma. Had 4 or 5 from the Chevy Forum call Friday asking about this compressor. https://ac...

Dougflas wrote:

Tim wrote:1000 or lower microns. It would indicate a working pump in my opinion.

I respectfully disagree. A vacuum pump with a micron gauge on it should pull below 100; usually 50 microns.

So I added a few zeros. Never matters on the debit. I hate when this happens.

1000 or lower microns. It would indicate a working pump in my opinion.

It's okay to ask questions. All answers are simply suggestions by those that may have knowledge of repairing a system. Not all of us will have the same opinion all the time.

Why do I only ever see micron gauges used in home HVAC work? I'm not disputing the benefits for automotive work, but I've never seen them used, and even my professional mechanic friends don't use or own them for automotive AC work. It just seems like an expensive tool for me to add just to see if m...

Best way to know you have a proper vacuum. Is to use a Micron gauge in the ac gauge set-up. 1000 microns or less with 500 microns being the best number to achieve.

Replacing vacuum pump oil is recommended to achieve best micron number.

Nitrogen with a little R134a works fine for leak checks. Personal preference on using either a electric or a dye style leak detection option.

Unless you have a sump (and your compressor doesn't feature neither a sump, nor an isolated crankcase that can store a good amount of oil), almost nothing keeps the compressor lubricated during a DIY recharge accomplished with the compressor on, except perhaps that little oil (usually half an oz) w...

Compressors offered have a 12 month warranty. Via our suppliers or oursheleves.

I don't have a quick fix answer without placing stress on it. Someone with crimping tools may be able to make adjustments.

Sorry I can't help more.

Here is an additional option I found.

https://ackits.net/product/57-0610/