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5321MSD Datasheet(PDF) 3 Page - Mallory performance club |
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5321MSD Datasheet(HTML) 3 Page - Mallory performance club |
3 / 4 page INSTALLATIONINSTRUCTIONS 3 M S D • W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 Once the charge wire gauge is selected (see Figure 1), route the wire from the battery positive terminal to the alternator charge stud. Make sure to route the wire away from moving components and high heat sources. Install ring lug terminals to the ends of the wire and connect it to the battery positive terminal and the charge post. BELT TENSION Once aligned properly, install the belt and tighten the alternator in place. To check the belt tension, install a 15/16" socket and 3/8” rachet wrench to the pulley nut of the alternator. Try to turn the nut clockwise as shown in Figure 3. The pulley should not turn, or just barely move with the other pulleys turning. Note: Pulley discolorization or excessive belt dust are signs of improper tension. PRE-START CHECK LIST • Be sure the battery is good and fully charged. A low battery can damage the alternator. Remember that alternators are made to maintain batteries, not to charge a weak or dead battery. • Review the instructions and check the connection between the battery positive terminal and the charge terminal of the DynaForce Alternator. • Reconnect the battery ground wire. • Start the engine. Rev the engine to over 1,200 to excite the alternator so it starts charging. SYSTEM CHECKS Once the alternator is installed and running, there Figure 3 Checking Belt Tension. Figure 4 Installing the Charge Wire. are a few tests you can perform to ensure correct operation. For these checks you will need a digital volt meter. With the engine running, rev the engine once to over 1,200 rpm. This ‘wakes up’ the alternator for it to begin charging as needed. Use a digital volt meter set to DC voltage, check the voltage across the battery terminals. Voltage should be from 13 – 14.5 volts. Next, check the voltage at the output terminal of the alternator to engine ground. Compare this value to that from the battery terminals. There should not be more than a .40 volt drop between the two measurements. If there is, check for poor connections or replace the charge wire with a larger diameter wire (See Figure 1). If you are not seeing proper charging values, it is recommended to run a ground wire from the alternator housing to the engine block. Powder coated and anodized brackets do not provide a good ground path. Also confirm there’s a proper engine ground to the battery negative terminal. CAUTION: Never disconnect the battery when the engine is running. Damage to the alternator will occur. |
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