13
Jan
Blisters on the insulator tip melted electrodes or white deposits are signs of a burned spark plug that is running too hot. An inspection port is a complementary product designed to ENHANCE your Mechanical Integrity and Safety programs in regards to non-destructive testing NDT and personnel safety.
Remove plugs and line them up in cylinder order.
Spark plug visual inspection. A visual inspection of the spark plug color will display symptoms and conditions of the engines performance. The experienced technician can analyze the spark plug color. Therefore tracking down the root cause of many problems.
The spark plug color can provide evidence of what is happening inside the engine. Spark Plug Visual Diagnosis Worn or dirty plugs give satisfactory operation at idling speed but under operating conditions they frequently fail. Faulty plugs are indicated in a number of ways poor fuel economy power loss loss of speed hard starting and.
Blisters on the insulator tip melted electrodes or white deposits are signs of a burned spark plug that is running too hot. Causes can include the engine overheating incorrect spark plug heat range a loose spark plug incorrect ignition timing or too lean of an airfuel mixture. The spark plug should be replaced.
The appearance of the firing end of a spark plug graphically reflects the condition of an engine the suitability of the spark plug heat rating and whether or not the carburetor and ignition timing are properly adjusted. These pictures can assist you in correctly choosing your spark plugs and determining the performance condition of your engine. Visual Inspection Remove and compare your old spark plugs to a new one.
If the tip andor electrode show excessive wear they should be replaced. Also look for fuel and oil contamination. Read on to learn how to read spark plugs with a simple visual inspection.
If you check your owners manual youll probably find that your automaker typically recommends you replace your spark plugs roughly every 30000 to 50000 miles. However the actual timing of replacement will vary depending on some other factors. Spark Plug Reconditioning Service A visual inspection should be the first step in servicing spark plugs.
The threads on the shielding barrel and on the shell that screws into the cylinder should be inspected for damaged or nicked threads. Inspect the lead shielding barrel for corrosion nicks and cracks. Not always a visual inspection can give you an idea of any obvious problems and the running condition of your engine however it should not be the end all test.
If your spark plugs were hard to access and remove then you should always replace them with the OEM Spark Plug anyways even if they pass a visual inspection. Use a spark plug wrench with an extender. Once you get the socket over the spark plug place your hand over the head of the wrench grasping the head firmly and pull the handle hitting it gently with the palm of your hand to get it going.
Once you have the plug in your hand check out its various parts to look for tell-tale signs of trouble. In this video I show you how you can visually inspect a spark plug and what you can learn about how your engine is working by the different deposits and disc. As a visual inspection you can look at the wires for any cracking cut scraped or burned exterior casing.
Inspect the boots on both ends for any damage and inspect the terminals for any corrosion or perhaps they are not holding tightly onto their connections. Technician A says that a thorough visual inspection should be performed on all ignition components when diagnosing an engine performance problem Technician B says that platinum spark plugs can be re-gapped after use in an engine. Back in the day cars had a lot of ignition parts that today dont even exist.
Like spark plug wires. But no matter how exotic or mundane all cars still use. Make sure there is no intermittent spark occurring anywhere along the exterior of the spark plug wires.
This is typically seen as a short blue spark and heard as a cracking or snapping noise. Pay particular attention to points along the spark plug wire that are close to ground planes or other wiring. Visual Inspection Engine Off.
Blowing around the spark plug through a soda straw. This prevents contaminants from falling into combustion chamber when the old plugs are removed. Remove plugs and line them up in cylinder order.
A thorough visual inspection of the plugs can identify problems that may need correction or show you they are all good. Autolite publishes a plug. An inspection port is a complementary product designed to ENHANCE your Mechanical Integrity and Safety programs in regards to non-destructive testing NDT and personnel safety.
Once an inspection port plug is installed on the outside of the insulation jacket of any insulated pipe vessel tank or process equipment the inspector can safely easily get access under the insulation WITHOUT. Inspect the following items. If any of the following malfunctions are indicated replace the spark plug.
Badly burned insulator sparking side Resistance Inspection. Measure the resistance of the spark plug using a tester as shown in the figure. To avoid possible damage to the tip do not adjust the spark plug gap.
L3Y2-18110 To prevent damaging the tip use a wire type plug gap gauge when inspecting the spark plug gap. Measure the spark plug gap using a wire type plug gap gauge. A visual inspection can often confirm that the spark plug wires need to be replaced.
The wires may suffer physical damage heat marks or corrosion. Damaged spark plug wires can arc to your frame or engine keeping the power from reaching the spark plugs and corrosion can keep them from making connection to your spark plugs.