Indenture an electric multimeter to investigation Delco Remy alternator diodes.
Comp the diodes on the Delco Remy alternator whether you are experiencing starting problems or capacity failures with your vehicle. Alternators transform the mechanical strength from the engine into alternating happening electrical (AC) strength. Then the rectifier diodes on the Delco Remy alternator alter the AC ongoing into sincere contemporary (DC), useable by the vehicle's electronic components. Diodes permit now flow in solitary one trail, so a resistence catechism indicates a poor Slogan. Resistence determines how able-bodied electric ongoing flows buttoned up a inclined Slogan.
Instructions
1. Remove the three bolts on the side of the alternator occasion. Carefully seperate the alternator into two halves.
2. Turn on the digital multimeter and nickels the measurement setting to resistence. The money Greek mail omega denotes resistance on most multimeter units. Specifically, capital omega denotes the unit of resistance which is the ohm.
3. Locate the half-circle shaped part with metal prongs in its center. This is the rectifier bridge that contains the diodes.
Note the resistance measurement. Reverse the connections and compare the resistance to the previous connection. If the same resistance results as the prior measurement, replace the rectifier bridge. Test the other two diode terminals in the same way. Touch the black probe of the multimeter to one of the metal prongs protruding into the center of the bridge (heat sink). Note the resistance reading. Reverse the connections of the multimeter probes. If you obtain the same reading as before, replace the rectifier bridge. Test the other two side diode in this same manner.
5. Connect the red probe of the multimeter to one of the diode terminals along the curved side of the bridge. Touch the black probe of the multimeter to the flat, metal plate on top of the bridge for grounding.4. Touch the red probe of the multimeter to one of the diode terminals along the curved side of the bridge. There exits three of these terminals in total.
