Can a piston hit a spark plug?

There is no way the piston is hitting the spark plug. The piston would hit the bottom of the cylinder head long before it would hit the spark plug, unless it is the incorrect spark plug. Even if the top threads were damaged or even gone, the plug would still stop at the desired location.
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Can piston Touch spark plug?

You will either bend the spark plug electrode, smash the insulator, smash a hole in the piston crown or all of what I mentioned ! Normally for that to happen, you have fitted the wrong plug! e.g. a long reach plug into a short reach engine. The plug electrodes will be squashed, and piston top damage at best.
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What would cause a spark plug to be smashed?

The three most common causes of wet spark plugs are: a flooded engine, a cracked ceramic insulator, or a faulty ignition cable.
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Can a piece of spark plug fell into cylinder?

You need to use compressed air and blast into the cylinder. This should blow out any pieces of spark plug.
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Can a spark plug destroy an engine?

Most problems that a bad spark plug can cause are repaired relatively easily. However, a spark plug that is left in the engine for an extended period of time can cause problems with piston rings and rod and crank bearings. These types of problems are more serious, but still not permanent.
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Can a piston punch a spark plug through the cylinder head?



Is it easy to break a spark plug?

Typically spark plugs are not difficult to remove as long as the plugs are replaced on a regular basis. But spark plugs can break off, particularly in engines that have been sitting for long periods of time. This is why you hear the plight of broken plugs being raised by antique tractor restorers.
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How do you know if you blew a spark plug?

6 Bad Spark Plugs Symptoms
  1. Engine misfires. The most common symptom of bad spark plugs is that you will feel misfires from your engine. ...
  2. Check engine light. ...
  3. Rough idle. ...
  4. Slow/rough acceleration. ...
  5. Hard starting condition. ...
  6. Poor fuel economy.
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How do you remove a broken spark plug from a cylinder head?

To remove the plug, move the piston to Bottom Dead Center, and make sure the engine is cold, even if you have to wait for cool-down. Then soak the broken plug shell with a generous amount of penetrating oil. Give it a few minutes to work, then tap an appropriately sized easy out firmly into the empty shell (Figure 3).
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What do black spark plugs mean?

Carbon fouled

Black, dry soot on the electrodes and insulator tip indicates a carbon-fouled plug. This can be caused by a dirty air filter, excessive driving at low speeds, too rich of a fuel/air mixture or idling your vehicle for too long.
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What does a wet black spark plug mean?

Dark coloring, such as heavy black wet or dry deposits, can indicate an overly rich condition, too cold a heat range spark plug, a possible vacuum leak, low compression, overly retarded timing or too large a plug gap.
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Can you fix a fouled spark plug?

Technically, yes, you can clean spark plugs, however, in most cases it's not worth it. We do not recommend it for a number of reasons. Ultimately, you won't get the same performance from a cleaned plug as from a new plug. Electricity discharges best from sharp edges.
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Can a spark plug explode?

A spark plug blow out occurs when the spark plug is fastened too tightly or not tight enough to the engine plug. The result is that the spark plug itself cannot properly channel the electric charge from the plug to the engine block, and the spark plug breaks down.
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Why do spark plugs shatter windows?

Spark plugs break windows because they're made from aluminum oxide ceramic (porcelain) and put a tremendous amount of energy at a single point on the glass. So if you can throw a spark plug even moderately hard at a window, this should break it with ease.
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Can I use wd40 on spark plugs?

Using WD-40 to repel water from spark plugs, distributors, alternators, and batteries is a good way to prevent corrosion and keep moisture away. You can also use it to ease the removal of spark plugs, especially if there is any rust or corrosion.
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How much does it cost to fix a blown out spark plug?

The average cost to repair a blown spark plug will be $750.
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How tight should spark plugs be?

Tighten the spark plug finger-tight until the gasket reaches the cylinder head, then tighten about ½ – ⅔ turn more with a spark plug wrench.
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How much does it cost to fix a broken spark plug?

The Best in Auto Repair

The average cost for spark plug replacement is between $130 and $165. Labor costs are estimated between $129 and $163 while parts are priced at $2. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.
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What does a broken spark plug sound like?

Sometimes, especially while accelerating, you will hear your engine making a distinct knocking sound. That sound is caused by your spark plugs not detonating properly and igniting all the fuel. The fuel and vapor that did not ignite eventually will catch fire and detonate.
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What does a misfiring spark plug sound like?

So what does a misfire sound like? During a misfire, the engine will make a sudden sound that can be described as popping, sneezing, or backfiring. Backfiring occurs when unburned fuel exits the cylinder on the exhaust stroke and is then ignited farther in the system by the spark of the next cylinder.
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What does a misfiring cylinder sound like?

So what does an engine misfire sound like? The most common descriptions of an engine misfire are a sound like a popping, sneezing, banging, chuffing, or a backfire, usually when the engine is anywhere between 1,500 – 2,500 rpm.
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How often do spark plugs break?

When your engine is functioning correctly, spark plugs should last between 20,000 and 30,000 miles. The U.S. Federal Highway Administration clocks Americans' average annual mileage at 13,476. Break this down into spark-plug life expectancy, and it comes to between 1.5 and 2.25 years.
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Can I drive with a broken spark plug?

Malfunctioning spark plugs cause engine problems including, misfires, hard starts, reduced gas mileage, rough idling, and lack of acceleration. Driving with a faulty spark plug will be difficult because the engine might fail to function.
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