Auto Spark Plugs K6RTC for NGK BCPR6ES/ BKR6ES /BOSCH FR7DC /
K20PR-U
Features
| Optimum engine protection: nickel-plated housing and thread, which
must not be lubried, provide protection against corrosion and
seizure at the aluminum cylinder head |
| Higher performance: heat-shrink assembly ensures gas-tightness and
a steady heat range |
| Higher wear resistance: the center electrode with copper core
features a higher thermal conductivity, providing protection
against thermal overload, corrosion and material erosion |
| Smoother engine operation and steady acceleration: the ground
electrode made from nickel alloy features a higher heat
conductivity |
Specfiion
.Hassle-free replacement of spark plugs: factory-set electrode gap
to suit the respective engine
.meets various engine specifiions and manufacturers’ demand.
.The spark plug ensures the starting even when the motor is cold.
.Nickel-plated housing and thread provide protection against
corrosion and seizure at the aluminum cylinder head.
.Heat-shrink assembly ensures gas-tightness and a steady heat
range.
| Filetage | M14 x 1.25 |
| Thread length | 19mm |
| Hex | 16mm |
| Resistor | Yes |
| Shell Seat | Flat |
| Center Electrode | Nickle Copper |
| Ground Electrode | Nickle |
| Gap | 1.1mm |
Packing
1) 1pc in a small box, 10pcs in a middle box, 200pcs in an export
carton;
2) 4pcs in a blister packing, 200pcs in an export carton;
3) 100pcs in a polyfoam box, 200pcs in an export carton;
4) 9600pcs spark plugs/pallet;
5) As customer's requirements.
How to Read Your Spark Plugs
Is your engine running too lean? Too rich? Is there an issue with
oil control or ignition timing? Or is everything just fine with
your engine? Like the mechanical version of the Magic 8-Ball, your
spark plugs may have the answers for you. The trick is learning how
to read your spark plugs.
With help from the spark plug experts at Beyond First Auto, we’ll
teach you how to diagnose minor tuning issues or potentially major
engine problems by examining your spark plugs. Check out the images
below, courtesy of Spark Plugs, and get ready to do a little light
reading the next time you pull your spark plugs.
Normal
Appearance: A light tan/gray or brownish color, along with very
little electrode erosion, indies optimal operation conditions,
including a healthy engine and correct spark plug heat range.
Deposits
Appearance & Symptoms: The electrodes—center and ground—are covered
in an ashy coating. As a result of this masking of the electrodes,
your engine may experience a misfire. This build-up of combustion
deposits can eventually (but not usually) fill in the space between
the two electrodes.
Possible Causes: Oil leaks, poor fuel quality.
Wet and Dry Fouling
Appearance & Symptoms: Dry fouling (top) appears as sooty, black
build-up. Wet fouling (bottom) has a wet, sometimes oily
appearance. Both conditions can create poor starting and misfiring.
Possible Causes: Depending on whether the spark plug is coated in
oil or fuel, wet fouling can be symptomatic of a compromised head
gasket, poor control from your pistons’ oil control ring,
valvetrain problems, or an extremely rich condition. Dry fouling,
or carbon fouling, is often caused by an overly rich condition, and
the problem may lie with your air cleaner (clogged) or carburetor.
Other possible causes could be low compression, vacuum leak, overly
retarded timing, or improper spark plug heat range.
Lead Fouling
Appearance & Symptoms: Lead fouling can only occur in applications
that use leaded gasoline, such as racing engines. Lead fouling
generally shows up as yellowish brown deposits on the spark plug’s
insulator nose. Lead fouling can cause your engine to misfire only
at high-rpm and under hard acceleration.
Possible Causes: This condition commonly occurs when gasoline
contains too much lead; however, because spark plugs are changed
frequently in racing applications, lead fouling has become less
common.
Breakage
Appearance & Symptoms: The insulator around the center electrode
may be broken (see left) or the ground electrode may be bent.
Again, you will likely experience misfire and some power loss under
these conditions.
Possible Causes: If the insulator is broken, it may be the result
of sudden thermal expansion or thermal shock caused by extreme
temperatures or temperature change. Detonation is often the culprit
and can be caused by an extremely lean air/fuel mixture,
drastically advanced timing, improper gasoline octane rating.
Melting
Appearance & Symptoms: In this case, the center or ground electrode
is melted or scorched, and your engine may be experiencing some
power loss.
Possible Causes: Melting often results from loose installation,
which prevents the plug from properly transferring heat from its
tip. But melting may also indie unusual heat or hot spots within
the combustion chamber. This excessive heat is often the result of
pre-ignition, which can be created by an overly lean condition,
improperly advanced injection timing, or improper heat range (too
low).
