Ignition / Preheating auto parts: Spark Plug
Spark plug is necessary to ignite air fuel mixture in the internal-combustion engine. In the ignition coil a voltage appears that comes from spark plugs to the engine compartment. Between two electrodes ignition spark appears and creates a small flash in the engine compartment. It starts the cylinders. Spark plugs are made of steel and have a screw thread. Due to it they are attached in the engine basic block. Under optimal conditions spark plugs clear themselves. If they overheat (because of temperature difference, for instance), this may result in ignition failure.
Motor mechanic can see the correct engine adjustment relying on spar plugs condition after long period of their use. When inspecting the plugs, the specialist can see if the oil level in the mixture is low or high. An important moment is the distance between electrodes. In the engine must be plugs with a correct heat rating. If you are not sure about these two points, pay attention to the maintenance instruction. There will be not a problem to replace the plugs as for definite car models there are definite spark plugs.
Any car owner can replace the spark plugs. First remove the spark plug pin. Then unscrew the spark using the spark plug socket and insert a new spark plug. After this replace the pins. When installing the spark plug, be careful not to deform the outer electrode. In our online store you can buy ignition cable, ignition module and ignition coils. Moreover, here you will find original spare car parts, such as brake shoe facings, horns, mudguards, window lifters, clutch discs, tie rods and shock absorbers.
Spark plugs failure
Signs of spark plugs failure
Causes of spark plugs failure
It is often sufficient to inspect the part visually to estimate spark plugs condition and find out the cause of failures. For this purpose it is sufficient to check the colour of an insulator of a spark plug working tip. Gray or yellow-brown colour is indicative of correct operation of the component. Dry or damp black deposits point to:
Repair and replacement of spark plugs
The spare part service life usually doesn't exceed 15 000 operational kilometers. Replacement of spark plugs should be performed in the following order: