|Place of Origin:||Zhejiang China|
|Certification:||GOST ISO 9001-2011; SGS TS16949|
|Minimum Order Quantity:||4000pcs|
|Packaging Details:||Packed in the box and reinforced with carton for outer packing|
|Delivery Time:||30 days after received your payment|
|Payment Terms:||T/T, L/C, Western Union|
|Supply Ability:||4800000pcs per month|
|Product Name:||Sparking Plugs||Application:||Bus Truck|
Bus and Truck Spark Plug Cooper spark plug and Champion Beru sparking plug
Spark plug for automobile, motocycle, lawn mower and other engine.
1. High quality & Save gas
2. Long life & Competative price
3. Nickel & Cooper Electrode
4. Platinum & Iridium Electrode
Match with NGK spark plug
Match with BOSCH spark plug
Match with Beru spark plug
Match with Eyquem spark plug
Match with Brisk spark plug
Q1 What is the heat rating of a spark plug?
A spark plug must dissipate the heat produced by the combustion gases. The heat rating is a measure of the amount of heat dissipation.
It is essential to use a spark plug with a heat rating that matches a specific engine and its condition of use.
When a wrong heat rating is selected,
When the heat rating is too high,
The spark plug temperature remains too low and causes deposits to build up on the firing end; the deposits provide an electrical leakage path that possibly cause misfire.
When the heat rating is too low,
The spark plug temperature rises too high and induces abnormal combustion (pre-ignition); this leads to melting of the spark plug electrodes that could cause problems such as piston damage.
Q2 In addition to correct heat rating, what other precautions should be taken during installation of spark plugs?
A Ensure the spark plug has the correct thread reach.
The engine will not operate properly without the proper thread reach.
If a spark plug with the wrong thread length is erroneously used, the piston or valve could strike it and damage the engine. Moreover, there is also the concern that the electrode could overheat and melt.
A Ensure the spark plug has the correct projection dimensions.
There are several types of spark plug igniter shapes.
Sometimes, even when the length of the thread is correct, installing a spark plug with long metal shell projection dimensions may cause it to be struck by the piston or valve and result in engine trouble. Only use projection type plugs as specified by the manufacturer.
When trying to remove a spark plug that is tight and will not come out easily, removing it by force may damage the neck of the threaded section and break the seal section of the spark plug, causing the threaded section to remain in the cylinder head.
To remove such a spark plug without excessive force, first operate the engine and allow it to warm up the cylinder head, then apply penetrating oil to the threaded section.
After a short while, the spark plug can be removed.