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MSD Billet Distributor Buick V6 Even-Fire PN 8551, PN 8554
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Category: Automotive
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Short Description: A Buick V6 has 11:1 compression, a high energy ignition and turns ... Obviously a full technical explanation of correct ignition timing would be very ...
Content Inside: MSD Billet Distributor Buick V6 Even-Fire PN 8551, PN 8554 Important: Read these Instructions before attempting the installation. Contents Timing Functions Choosing an Advance Curve Setting or Locking Out the Centrifugal Advance Installing the Distributor Adjusting the Slip Collar Wiring the Distributor Parts Included: 1 - Pro-Billet Distributor 1 - Rotor, PN 8467 1 - Distributor Cap, PN 8553 1 - O-ring Seal 1 - Tube of Gear Lubricant 1 - Parts Bag An MSD Pro-Billet Distributor must be used with an MSD Ignition Control. TIMING FUNCTIONS Before continuing with the installation, here are a few definitions you should be aware of: This is the base timing (also referred to as idle timing) of the engine before centrifugal advance begins. The centrifugal advance mechanism is made up of weights, springs, advance cam, and an advance stop bushing. The amount and rate of advance that your distributor is capable of is determined by the centrifugal timing. If you ever wish to lock out the centrifugal advance, refer to the centrifugal advance section. This is the total of the initial timing plus the centrifugal advance added together. Example: 10° Initial + 21° Centrifugal = 31° Total Timing. PN 8551 is equipped with an adjustable mechanical advance. PN 8554 does not have this feature. CHOOSING AN ADVANCE CURVE The function of the advance curve is to match the ignition timing to the burning rate of the fuel and speed (rpm) of the engine. Any factor that changes the burning rate of the fuel or the engine speed can cause a need for an ignition timing change. Figure 1 shows some of the factors that will affect engine timing. AUTOTRONIC CONTROLS CORPORATION · 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 · (915) 857-5200 · FAX (915) 857-3344
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