What is the function of spark plug in petrol engine?
Your spark plugs are what supply the spark that ignites the air/fuel mixture, creating the explosion which makes your engine produce power. These small but simple plugs create an arc of electricity across two leads which are not touching, but close enough together that electricity can jump the gap between them.
What causes a spark to go out on a spark plug?
This article focusses on finding the source of misfires caused by the loss of spark. Loss of spark is caused by anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. This includes worn, fouled or damaged spark plugs, bad plug wires or a cracked distributor cap.
How do you remove a spark plug from a car?
Use an insulated tool to lift the wire off the plug, one at a time. Now the whole wire and the coil that supplies it is loaded. Use a jumper wire to ground an insulated screwdriver. Gently drag the screwdriver down the length of each spark plug wire, around the coil, and the boots.
What to do if your Harley Davidson has no spark?
Just installed 12″ bars and cam plate. Buttoned it all up and tried to start it. Motor turns over fine, however no spark. Pulled the plug wires, put another plug in wire and no spark. Took tank back off, no pinched wires. Tested B terminal of coil plug and getting 12 + Volts. Removed power commander, hook bike back to ecm, no spark.
Where are the spark plugs on a General Motors engine?
The placement of each spark plug wire on the distributor cap is directly correlated to the engines firing order. For example; a standard V-8 General Motors engine has eight individual cylinders. However, each cylinder fires (or reaches top dead center) at a specific time for optimal engine efficiency.
What does it mean when your spark plug is not working?
Indicates the cylinder from which the spark plug came is not using all the fuel supplied to it. Check for faulty or sticking choke, overly rich fuel mixture, ignition problems, leaking fuel injectors, or spark plug heat range is too cold. Appearance – Firing tip is damp with gasoline, usually the odor of fuel is present on the spark plug.
Where can I read the condition of my spark plugs?
The pictures and text are from the Autolite technical manual and just made a bit easier to read in the grand scheme of EZ-Read charts here. You can find Images and PDF’s from Autolite, NGK, and other on how to read the color and condition of your spark plugs. This is a simple re-hash of that with mostly the same text as the original from Autolite.
Why does my Harley Davidson have no spark?
No spark. Good fuel. The service dept. told me that the coil hardly goes bad. It might be the crankshaft sensor. I replaced it and it started.
What does oil fouled spark plug look like?
Usually when a plug is oil fouled smoke (gray) is seen. This can sometimes have a wet look, but don’t confuse it for Fuel Fouled Plug 3, which will smell a lot like gasoline. Mechanical Damage Locate and remove foreign object from inside of cylinder.