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#16
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But is it worth it?
http://www.redhillsupply.com/auto-ac-vacuum-pump-1.htm Based on info from this site, 1.2CFM is adequate for auto work, but the 2.5 is not enough for residential work. So what is the advantage?
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Current Mercedes 1979 maple yellow 240D 4-speed Gone and fondly remembered: 1980 orient red 240D 4-speed Gone and NOT fondly remembered: 1982 Chna Blue 300TD Other car in the stable: 2013 VW Jetta Sportwagen TDI / 6-speed MT |
#17
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Quote:
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#18
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Less time to boil out the moisture from your system. If you pull a deep enough and long enough vacuum you can even pull the moisture out of the receiver dryer.
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http://i284.photobucket.com/albums/l...aman/Fleet.jpg Peach Parts W124.128 User Group. 80 280SL 85 300SD 87 300TD 92 300D 2.5 Turbo 92 300TE 4Matic Last edited by pwogaman; 07-25-2008 at 05:45 PM. |
#19
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How much? 1.2 vs 2.5 = 2.1x
Does that mean you pull the vacuum for 30-min instead of and hour?
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Current Mercedes 1979 maple yellow 240D 4-speed Gone and fondly remembered: 1980 orient red 240D 4-speed Gone and NOT fondly remembered: 1982 Chna Blue 300TD Other car in the stable: 2013 VW Jetta Sportwagen TDI / 6-speed MT |
#20
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I pull for at least an hour. With 1.5 cfm you would need to pull 10x as long to get the same, not considering the Hg difference.
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http://i284.photobucket.com/albums/l...aman/Fleet.jpg Peach Parts W124.128 User Group. 80 280SL 85 300SD 87 300TD 92 300D 2.5 Turbo 92 300TE 4Matic |
#21
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No. It just means that you will get to the minimum pressure faster. On a car, the time difference is not significant. The volume of air in the system is relatively small.
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#22
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Quote:
PSIG is pounds per square inch guage (zero is set to at whatever elevation you happen to be; if it is not adjustible then it would generally be set to zero at sea level). PSI is just pounds per square inch within the measured medium without reference to the surrounding pressure (or lack thereof).
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http://i284.photobucket.com/albums/l...aman/Fleet.jpg Peach Parts W124.128 User Group. 80 280SL 85 300SD 87 300TD 92 300D 2.5 Turbo 92 300TE 4Matic |
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