anyone has try one of these?does it work?
http://cgi.ebay.com/Air-Conditioner...ryZ22664QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.com/Air-Conditioner...ryZ22664QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
a/c question
- Thread starter Supraboostin
- Start date
They work, but not very well. Get one of these instead.
http://cgi.ebay.com/ebaymotors/NEW-...012QQitemZ220139737173QQrdZ1QQsspagenameZWDVW
http://cgi.ebay.com/ebaymotors/NEW-...012QQitemZ220139737173QQrdZ1QQsspagenameZWDVW
yea i know those are the best ones but the question is how good are the other ones,i only need it for my car so dont really wanna waste $200 for a one time use3p141592654 said:
Well, lets say that they are better than nothing, but not by much.
Somewhere on the web I remember recently reading about the actual vacuum these things will draw. Its pretty poor. They also need a pretty decent air compressor to feed them.
Somewhere on the web I remember recently reading about the actual vacuum these things will draw. Its pretty poor. They also need a pretty decent air compressor to feed them.
Found the article,
http://www.aircondition.com/tech/questions/38/
Here's the synopsis
We used a large commercial compressor dialed in at over 150 PSI. with our air vac, and we were able to maintain the suggested air requirements. The vacuum produced didn't even register on our Yellow Jacket micron gauge. That's something most electric vacuum pumps can achieve in very short order.
Regardless of what sales literature may claim, we believe, under most conditions, you won't be able to boil much water with the vacuum level produced with a venturi pump. Therefore, we feel that air powered a/c vacuum pumps have no place in an automotive service shop.
If you plan on servicing A/C systems, and want professional results, invest in a good electric vacuum pump. It's not uncommon to get ten or more years of service from a good electric pump. That's a good return on investment. As an option for the do-it-yourself mechanic, some tool rental companies now rent electric vacuum pumps on a daily or hourly basis. I think that would be better than overworking your air compressor for an hour or more, just to get mediocre results.
http://www.aircondition.com/tech/questions/38/
Here's the synopsis
We used a large commercial compressor dialed in at over 150 PSI. with our air vac, and we were able to maintain the suggested air requirements. The vacuum produced didn't even register on our Yellow Jacket micron gauge. That's something most electric vacuum pumps can achieve in very short order.
Regardless of what sales literature may claim, we believe, under most conditions, you won't be able to boil much water with the vacuum level produced with a venturi pump. Therefore, we feel that air powered a/c vacuum pumps have no place in an automotive service shop.
If you plan on servicing A/C systems, and want professional results, invest in a good electric vacuum pump. It's not uncommon to get ten or more years of service from a good electric pump. That's a good return on investment. As an option for the do-it-yourself mechanic, some tool rental companies now rent electric vacuum pumps on a daily or hourly basis. I think that would be better than overworking your air compressor for an hour or more, just to get mediocre results.
