Good friends , in my ls 400 of the year 1992 , i have a few drops of water that fall from slight manner every 40 seconds or more, at the back of the alternator , this drip is intermittent is not constant , in the container of water i put about 300 or 400 ml every 2 days , someone has had this kind of leak , reviewed a totorial pump exchange of water and noted that the pump is located toward the center ,not toward the side where i have the drop of water , ( in the package there is water does not have refrigerant )" anyone could tell me if you have had some experience equal and where might come This leakage