Where do I find the timing specifications for a distributor?
Find the timing specifications for your vehicle. Replacing the distributor requires you to use a timing light to set the timing of the engine after the new distributor is installed. To do this, you’ll need to use the timing specifications unique to your vehicle. Often, these are on a sticker under the hood or in the engine compartment.
What happens when you rotate the distributor on a Ford?
When you rotate the distributor to “adjust the timing” you are moving the switch on the housing side in relation to the trigger on the shaft. Rotating the distributor housing clockwise on a Ford advances the timing (i.e. spark is being fired a greater number of degrees before the piston reaches TDC), and counterclockwise decreases the timing.
What’s the best way to adjust a distributor?
Grab the distributor firmly and rotate it slowly to one side or the other. Continue rotating until the timing mark is in the correct position. Align the timing marks by continuing to move the distributor and checking with your timing light. When you’ve got it set where you want it, lock it back down by tightening the distributor bolts.
Do you need timing light to replace distributor?
Find the timing specifications for your vehicle. Replacing the distributor requires you to use a timing light to set the timing of the engine after the new distributor is installed. To do this, you’ll need to use the timing specifications unique to your vehicle.
How to install a distributor and set initial timing?
Leave a little extra room with the spark plug wires to allow freedom of movement in the distributor. For Chevys, be careful to make sure 5 and 7 are installed correctly. If the wires are accidentally switched, the engine will not be happy. Before we try to start the engine, be sure the distributor is connected to switched power.
How do you change ignition timing on a vacuum advance distributor?
Unplug the electrical connector and, if your model has it, the vacuum advance hose from the distributor. Plug the hose with a small screw and don’t remove the plug until you have adjusted ignition timing. Detach the distributor cap. On some models you can detach the cap without disconnecting the spark plug wires.
Do you need to rotate distributor when setting ignition time?
Double check that the aligning marks on the engine, distributor, and primary rotor mark, are all aligned. This will indicate you have installed the distributor correctly. Install the distributor hold down bolt finger tight and slightly loose. You may need to rotate the distributor by hand when setting the ignition time.
When to set initial timing on Summit HEI distributor?
We prefer to set the initial timing for most engines at 10 degrees Before Top Dead Center (BTDC). With that set, remove the cap from the distributor. We’re using a Summit HEI distributor.
Can a distributor be replaced in an older car?
Most older models of vehicles contain a mechanical distributor, while more recent models almost always have electronic, computer controlled distributors or even distributor-less ignition systems. These modern distributors aren’t terribly mechanic-friendly, but older mechanical varieties can be replaced (and often are to improve engine performance).
What should I do before installing a distributor?
Ensure that the rotor is in the marked position before installing. As noted above, the position of the rotor in the new distributor must match the rotor position in the old distributor exactly or your vehicle won’t be able to start. Ensure your rotor is lined up with the marking you made.