Distributor Removal and Installation

Removal:

1. Remove number1 spark plug and pull the coil wire off
    
2. Place your finger over the spark plug hole
    
3. Have an assistant bump the motor over until you feel air pushing your finger off the hole.
    
4. Use a socket (1.25" usually) and manually bring the engine dampener mark to zero.
    
5. Remove the distributor cap, the rotor should be pointing in the general vicinity of number1 cylinder.
    
6. Note the location of the vacuum canister.
    
7. Remove the distributor
    
8. Do not rotate the engine, leave it right where it is.

Installation:

1. Clock the rotor so it's pointing at number 1 cylinder and hold the housing so the vacuum unit or cover plate is in the approximate position as in number 6 above.
    

2. Drop the distributor in and jiggle the rotor and housing slightly until it drops into the oil pump drive, be sure that it drops all the way down.
    

3. Determine the correct rotation of your distributor, SB Mopars rotate clock wise, 383/400/440 all rotate counter clockwise.
    

4. Look at the reluctor (Star wheel on your distributor shaft)  see number 6 above and turn the housing to the approximate location, one of the paddles on the reluctor should now be very close to the magnetic pickup centre.  Adjust it now so it lines up dead centre on that contact point.
    

5. You now have set the distributor to zero timing and the rotor should line up centred on the cap contact for number1 plug wire.   Mark the housing so when you position the cap it's easy to confirm that number 1 cap terminal is directly in line with the rotor.
    

6. Of course at Zero timing the motor will have a hard time starting so we need to advance it to about 15*-20* , so if we think about this the position we have it set at the distributor should have already fired number1 plug so study your rotation and think about which direction it  rotates and turn the housing  so that it indicates that the distributor has already fired number1.  On a Clockwise distributor (SB) you would turn the housing COUNTER CLOCKWISE a BB you would turn the housing the opposite direction. Always remember that "Rotation Retards" so to advance the timing you turn it counter rotation.
    

7. How far?
   Just rotate the distributor to about 1/8 to 3/16" past the contact point with the reluctor paddle, this will put enough timing in the motor to fire it off, even close will fire the motor and allow for final tuning with a good timing light. see number 6 for correct direction to rotate the housing.
    

8. Tighten the clamp just enough so you can grab the cap and turn the distributor with a strong arm, we just don't want it to slip when we're trying to start it and time it.
    

9. Start the car, bring it up to temp and set the initial timing as per your specs.  We recommend that you also bring it up to about 100-200 RPM above where we set the total at and with a dial back light check to be sure that it doesn't exceed the total timing we have determined as Max timing for your application.
    

10. Your all done, tighten down the distributor clamp, double check it and "Happy Motoring"

Caution:

Poor wires or a  bad cap will load your body with about 25,000 volts at idle if using our ignition system and remove all doubt that our ignition system puts out extreme voltage.  Be sure the entire system is in top condition before grabbing a handful of ignition wires, failure to do so may cause your head to slam into the hood and or painful bruising of the elbow when it makes rapid contact with the inner fender.  

Spark Plug Reading    Carb Sizing    Hydraulic Cam Installation and Braking    Mopar Rear Ends    Remove/Install your Distributor

Cross Reference Demon to Holley    Mopar Valve Geometry    Torsion Bar Removal    Mopar Ignition Wiring Diagrams

What size Fuel Pump do you Need    Basics of Cam Specs    Mopar Distributors    Demon Carburetion Sales Policy

Valve Adjustment Chart    Ignition Tune Up Help    Mighty Demon Q&A    Secrets of Cam Design    Voltage Regulators

4 Pin/2 Pin Ballast Resistor    A688 Drop Cylinder Test    A688 Q&A    Computer Controlled Ignition Swap    GM HEI Distributors

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