Do spark plug wires have numbers?

First, lay out your new spark plug wires according to length if they’re not numbered (most will be numbered and most come in black, though you’ll also find them in blue, red, orange or yellow.

Where does the spark plug wire go on a four cylinder engine?

Because every vehicle is different, it is always a good idea — even on four-cylinder engines — to mark the spark plug wire location prior to removing it or to remove the wires one at a time if you are changing the plugs and wires. Obtain the firing order for your vehicle.

What’s the date on a spark plug wire?

Boot Color: original color (black, gray, brown or orange). Boot Type: original size, shape and configuration (45°/135°, 90°, or 180°/straight). Example of a spark plug wire date code. This code (3-Q-62), means that the wire was manufactured (but not necessarily installed in a vehicle) during the 3rd quarter (July-September) of 1962.

Are there any authentic spark plug wire sets?

In order to satisfy the most discriminating enthusiast and restorer, Lectric Limited manufactures USA-made authentic reproduction spark plug wire sets. These sets are identical to the spark plug wires as they would have appeared on your vehicle when it shipped from the factory.

What happens if you use the wrong spark plug?

Be sure to use the right spark plug! Although several different spark plugs may screw into the engine, using the incorrect one will result in performance problems and possible internal engine damage. Also known as L head or Side Valve Engines, these engines are commonly used for walk behind lawn mowers and pressure washers.

How do you know which spark plug wire goes where?

It is the same as the firing order of the engine. This answers how do you know which spark plug wire goes where. An easier method to do this is to replace the spark plug wires, one at a time. Pull the old one from the spark plug and the distribution cap and replace it with a new one.

Can a spark plug have a different code number?

Therefore, selection of a spark plug with a different code number is not recommended. The heat ranges may be drastically different between two different plugs, and engine damage or poor performance may result. See your local installer or retailer for details. The prefix “41” stands for the manufacturer’s product line (e.g., 41 = spark plug).

What happens if you put spark plug wires in the wrong order?

To avoid mixing up and placing spark plug wires in the wrong cylinder, it is prudent to replace them one at a time. Placing spark plug wires in the wrong order will affect the engine’s performance or prevent it from starting. Q. What Happens If You Put Spark Plug Wires on Wrong?

What causes a spark plug wire to burn?

This causes an increase in the voltage required to fire the spark plug, which could damage the ignition coil as well as the spark plug wires. Heat damage – Engine heat can burn wire insulation and boots. A damaged boot can impede proper spark plug wire seating and performance.