stillexclusive.blogg.se - How to install spark plugs and wires

This may cause burns and damage to the engine head, as most engine heads and engine blocks are now made from aluminum. Never change spark plugs on an engine that has not cooled completely.Use only OEM (original equipment manufacturer) or better replacement spark plug wires and spark plugs.Replacing Spark Plugs And Spark Plug WiresĪ few things to remember when replacing your spark plugs and spark plug wires. You can find the recommended time for tune up or spark plug change in your owners manual, or contact any dealership for this information.

When necessary, make the engine repairs and change spark plugs as indicated by the manufacturer. Always use the recommended spark plug gap and heat range. Changing a spark plug will not always help with certain fouling problems. There are other reasons for spark plug fouling, though these are the most common. You can see crusty deposits on and around the plug from rust or ash, because the electrode is worn and may appear to be burnt. The spark plug will be chalky white and sometimes have blisters or discoloration on the spark plug core and or the electrode.

Overheating: A spark plug may become overheated for several reasons including incorrect heat range, bad exhaust or exhaust restrictions, like the catalytic converter, or overheating of the engine.

The cause of this type of foul could be caused by a number of reasons such as worn valve seats or broken piston rings. This fouling indicates advanced engine wear.

Oil fouling: A black oily spark plug with oil deposits.

When this happens, you will experience engine misfire. The carbon based deposits you see on the plug may be conductive, and will allow the voltage coming out of the electrode to travel down the plug instead of jumping the gap.

Carbon fouling: Your spark plug will have a black look, and will have soot build up deposits indicating a rich fuel/air mixture, another cause may be from, weak ignition.

Here are some of the most common reasons for spark plug fouling: Every spark plug can foul, no matter how expensive or how good they are. Although these are two reasons for spark plug fouling, there are other issues you should consider. Generally, most people will associate fouled spark plugs with gas and oil.

Though the spark plug and spark plug wire manufacturers have been coming up with new technologies to retard the effects of EMI or RFI, the people who design the cars, trucks, SUVs and vans we drive everyday are working hard to help with the effects of EMI or RFI. But the EMI or the RFI can also cause more severe problems with your vehicles computer or radio, or other vehicle electronic or electrical systems. When a spark moves or jumps the gap on the spark plug, it creates electromagnetic field causing a number of problems, such as poor spark plug performance. These unwanted signals interfere with other signals sent from other electric or electronic signals. With the spark plug and spark plug wires, this is extremely minute amounts of radiation that are emitted by electric circuits which carry rapidly changing signals. Instead, the resistors were created for EMI (electromagnetic interference) or RFI (radio frequency interference). Some think that the resistor will stop oil fouling or may stop the deposits from entering or exiting the spark plug chamber. Many people have this misconception about spark plug resistors.