This arc is the spark that ignites the flammable mixture. Spark plugs can stop working for a number of different reasons. Anything that interrupts the flow of electricity, such as buildup of oil , fuel, or carbon, can cause a malfunction. Having an incorrect gap will likely cause problems.
Spark plugs wear over time so an old plug may have an excessive gap. This is an option for knowledgeable car owners to prolong the life of their plugs.
Sometimes the wrong spark plug is installed in the vehicle, so the heat range will be different. This can cause a problem as well. Of course, damaged plugs may not work. Sometimes they can be corroded or burned from long life or harsh conditions. Since bad spark plugs can lead to misfires one of the symptoms , many of the general red flags overlap.
Misfires occur when there is a problem with combustion of the air fuel mixture inside a cylinder. A misfire can happen when the mixture ignites early, late, or not at all.
Unburnt fuel can cause increased exhaust emissions which are harmful to the environment and make the tailpipe smell strongly of fuel. Engine damage is inevitable when misfires go uncorrected. Black, oily deposits on the electrodes and insulator tip points to an oil-fouled plug. Oil could be leaking into the cylinders, getting past pistons that are worn or valve guides that are worn. Finding the source of the leak is very important — consult a mechanic for guidance.
Once the problem is addressed, you can replace the spark plug. A wet spark plug can be the result of the engine flooding. Flooding is what happens when you try to start the engine several times without it firing up. You can clean the spark plugs or you can just wait for them to dry out.
Blisters on the insulator tip, melted electrodes, or white deposits are signs of a burned spark plug that is running too hot. The spark plug should be replaced. Worn and eroded electrodes are symptoms of a spark plug that is past its prime. The plug has been in the engine too long and needs to be replaced. Ivan 0. Neutral Newbie April 9, Will i damage the engine or cause any problems to it? After i had changed, i kinda smell some sort of buring smell inside my car.
Share this post Link to post Share on other sites. Elfenstar I'm no guru on the clearances for the B16 but it should be fine. Kelpie Engine check light will be lighted up. The car will machiam astma like that at stationery. Neutral Newbie April 10, But how can i check the clearances for my engine?
Aimnfire If you havent hit the piston yet then it's fine. Nothingtodo Y not check the clearance and lenght from the manufacturer? They are the expert anyhow. Highwaycode 3. Neutral Newbie April 11, Yeobh If spark plugs are gapped too wide, the ignition spark loses some of its strength as it crosses the spark plug gaps.
This can result in engine hesitation. Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.
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