Oil pressure senders are either a spade connection or the pin connector shown here. The unit operated by two vacuum lines, one for advance and one for retard. Over the entire history of the small-block Ford, three basic starter types were used. The resistor prolongs the service life of the point set. Rotating the distributor body changes the position where the points contact the distributor cam.
Those barely have enough room for the standard-diameter cap to fit. Ignition Upgrades:Capacitive Discharge A stock ignition system uses an inductive discharge. Once the distributor is reassembled, the engine is run with the dwell meter attached. To test Ford Coil-on-Plug Ignition Coils 4. You can find this tutorial in Spanish here: at: autotecnico-online.
They are good ones that are equal to those available for any other engines. However, on our 289-powered '67 Fairlane the distributor and its functions are still very relevant to our world. I normally use the lower two timing-cover bolts on the passenger side as the location for the hand-formed bracket. A feeler gauge is used to measure the point gap at the open position. These bushings wore out quickly causing unacceptable shaft oscillation, point bounce, and dwell irregularity resulting in poor performance. By the time the condenser is saturated with this residual electricity the points are far enough apart so that the small amount of remaining voltage won't be able to jump across. Oil-impregnated bushings are your best option if you can find them.
As you may already know, it's this action that makes the ignition coil spark away. Generators and Alternators Between 1962 and 1964, all small-block Fords were factory fitted with a 30-amp generator charging system with an external voltage regulator. Whether you've got a Pertronix ignition or not you still have primary and secondary sides to the ignition system and you'll still have to have the correct engine timing. In other words, the faster the engine is spinning, the earlier we have to fire the plug to produce optimum power. The other way is by measuring the dwell electrically. If your car has a more modern roller cam, then the camshaft will be made of steel.
Replaces Coils With Short 4. The single-point Autolite distributor was equipped with this fully adjustable vacuum-advance unit. Plug the electrical connector into the module and bolt it to the housing. Also, the battery must be in a fully charged condition for all tests in this article. For a slower rate of advance, you add shims to increase spring tension against the diaphragm. Alternately, you can use only the distributor features and bypass the pickup coil entirely to use a crank trigger.
Aftermarket replacement vacuum advance units are adjusted via the vacuum port with an Allen wrench. Duras-park consists of a module and a distributor fitted with a reluctor and shutter wheel, which perform the same role as breaker points. December 15, 2009 Ignition System Basics No Ford engine project is complete without a properly functioning ignition system. The block has a small recess just above the cam for indexing distributor housing. A builder seeking an original appearance uses factory Ford-style valve covers, and the large-diameter wires do not fit through the plastic wire looms. To prevent this from happening the condenser provides an alternative path to ground.
The current then arrives at the rotor, which will deliver the charge to the correct spark plug at exactly the right moment. If the engine turns 6,000 rpm, the alternator turns 18,000 rpm with the small pulley. Getting it wrong will have a dramatic affect on ignition timing. Because the cam is geared to the engine rotation, this adjustment changes when the sparks occur with respect to the rotation cycle. There are variations between 157-tooth versus 164-tooth and manual transmission versus automatic transmission. The same can be said for the various casting numbers, date codes, and designs. Vacuum Advance System Original vacuum advance units can be dialed in via shims and a spring, as mentioned previously.
They s on solenoid means start you want to put the wire from the ign. Pertronix is the only large company that still services that market niche, and it has continued to refine the system over the years. All you need is a Duras-park distributor, ignition module, coil, and wiring harness. High resistance and short-circuits made the 2G a fire hazard, which is why enthusiasts have converted their applications to the 3G alternator. These units usually require a 12V feed, so you may have to bypass the pink resistor wire. Here are two Motorcraft Duraspark ignition modules. The primary circuit wire goes into the coil through the positive terminal and loops around the primary windings and then exits through the negative terminal.
Primary And Secondary Ignition Your classic Ford ignition is divided into primary and secondary ignition systems. In the 1970s there were a number of similar kits on the market that let you turn a points distributor into an electronic distributor. Each type of module is color-coded, which is intended to prevent erred installation. Quick methods to disable the engine I have seen people do on the classics: Close the points by loosening the set screw Pull the rotor cap Connect a wire from the coil to ground. The unit includes an adjustable vacuum advance and is as simple as it gets for a street-rod ignition package. You'll need a Ford starter solenoid with the 'S' start and 'I' ignition terminals on it, install the resistor in line with the existing coil feed, then run a wire from the 'I' terminal to the coil.
But there is a huge amount of variability within those ranges, and every combination is different. There were varied amounts of advance designed into the originalequipment canisters; some were adjustable using a hex key inserted into the vacuum hose opening. The opening in the intake manifold is sealed from oil spray with a cone-shaped rubber O-ring installed on the distributor body. May 17, 2010 Ok solenoid bolts on to fender wall and we will start with main wires the big ones. The internally regulated Motorcraft 2G alternator first appeared on new Fords in 1982, replacing the older 1G, which had been in production since 1964. At normal rpm ranges this system works fine. What Tools Do I Need For The Ignition Module Test? However, as engine rpms climb the process begins to happen too quickly for the coil to have time to store up a complete charge between each event.