It's easy! You fill the system with nitrogen to 200 psi. It is rather difficult to test for leaks with a vacuum. In fact all you can tell that way is that the system is leaky, you cannot actually FIND leaks that way. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Chris Murley" <qumefox@...> wrote: > > On 5/15/06, David Teitelbaum <jtrealty@...> wrote: > > > > Before recharging a dead system with ANYTHING a good shop will find > > and repair any leaks. In fact it is the law. > > > Out of curiousity, exactly how do you test for leaks without charging the > system? I know making sure the system holds a vacuum is part of it, however > the 14.7psi pressure difference between a vacuum and atmospheric is alot > easier to hold than the 115 psi (minimum, it will likly be alot higher) > pressure difference that will be between the high side of the system and > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/