Asked by: Asan Rivet
automotive auto parts

Are Ford Motorcraft spark plugs pre gapped?

Last Updated: 3rd April, 2021

14
The fine tip iridium are always pre-gapped at factory and the manufacturers specifically say that should NOT be messed with by user. The Motorcraft ones are cheap versions of Autolite Dual Platinum, they requested "no factory gapping" to their OEM (Autolite) to save costs, that's why the gap is never exact.

Click to see full answer.

Thereof, are Motorcraft spark plugs gapped?

I called the vendor I bought them from, Motorcraft and a parts store, and they all said they are pre-gapped platinum spark plugs and not to try and re-gap them. They said re-gaping a platinum spark plug can damage the platinum coating, hence the reason they are sold pre-gapped.

Furthermore, can you gap double platinum spark plugs? The double platinum Motorcraft plugs are excellent, and can be gapped as well. Don't force anything - just bend the side electrode carefully.

In this regard, are pre gapped spark plugs good?

Autolite spark plugs traditionally leave the factory pre-gapped for their most popular application. However, a plug may fit hundreds of engines, from cars to golf carts. Gapping the plugs to your engine's specifications is important to prevent pre-ignition, detonation, fouling and poor fuel economy.

Do you have to Gap ACDelco spark plugs?

A: Yes. When ACDelco spark plugs are manufactured, they are pre-gapped to the correct gap specification. A: Not always, but you should inspect your spark plug wires for wear when replacing your spark plugs. Refer to your vehicle owner's manual or contact the manufacturer for more information.

Related Question Answers

Eliud Do Campo

Professional

What should be the spark plug gap?

Also, the spark plug gap should never exceed .055" unless pre-set by the manufacturer. Spark plug gap is where spark plug spark discharge is designed to take place. On a conventional spark plug, it is the area between the center and the ground electrode.

Bailo Rulaffs

Professional

Are platinum spark plugs pre gapped?

Note: Bosch OE Fine Wire Series Spark Plugs (Double Iridium, Double Platinum and Platinum) are pre-gapped. Adjustment of gap could cause damage to the center electrode.

Bikendi Ulyatt

Professional

What is a spark plug gap tool?

The gapping tool will help you manually open the gap to the exact factory measurement recommended in your owner's manual. That way, you boost the efficiency of the spark plug in putting out a large enough spark to ignite the air and fuel mixture in your engine. Correctly gap your new spark plug.

Ilze Espadas

Explainer

How do you adjust the gap on a spark plug?

Use the tool to adjust the bottom electrode.
When you hold the spark plug with the electrodes facing the floor, you'll want to bend the bottom one very gently either in toward the other electrode if you want to narrow the gap, or out, if you want to increase the gap slightly.

Jhoanna Penig

Explainer

What happens if my spark plugs arent gapped correctly?

Spark plugs that are not gapped properly will cause the engine to either skip firing, or ignite too soon in the compression stroke. Properly gapped spark plugs also remove heat from the cylinder ignition chamber. The heat range of a spark plug is defined as its ability dissipate heat from the tip."

Wallace Lindloge

Explainer

What happens if spark plug gap is wrong?

Spark plugs that are gapped incorrectly can cause an engine to miss, or run erratically, especially during idle. The incorrect spark plug gaps can cause uneven firing of individual spark plugs and delay engine combustion; both of which can cause an engine to miss or idle erratically.

Herve Folwa

Pundit

Should you GAP new spark plugs?

The gap between the center and side electrodes of a spark plug must be an exact distance; otherwise, your plugs don't fire efficiently. Gap new as well as old spark plugs, even if the package says that the new plugs are “pre-gapped.” To avoid problems, work on only one plug at a time, in cylinder sequence order.

Fae Bateman

Pundit

Should you lubricate spark plug threads?

AC spark plugs should be installed dry. Do NOT use any type of anti-seize lubricant on spark plug threads. Anti-seize lubricants decrease the amount of friction between the threads, resulting in over tightening. That can cause the spark plug to move too far into the combustion chamber (in crush washer applications).

Xiaohai Palleiro

Pundit

Do NGK Iridium spark plugs come pre gapped?

Do I need to gap my NGK IX iridium spark plugs? They come pre-gapped at . 030, which is the gap recommended on NGK's website for the 2.0L WRX (well, for my 2004 anyway).

Claudette Noto

Pundit

Do NGK Iridium plugs need to be gapped?

In most cases your Iridium Power plugs do not need to be gapped. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center.

Toccara Saraf

Pundit

Do you need dielectric grease for spark plugs?

Dielectric grease does not dissolve in most liquids, so it is good for marine and outdoor applications. You can use this grease to lubricate the rubber parts of electrical connectors, spark plug wires, and to protect electrical connections on your boat or recreational vehicle from corrosion.

Ridouan Wreege

Teacher

Where do you put anti seize on spark plugs?

When applying it to Spark Plugs use it sparingly and only apply to the middle threads of the plug. Stay away from the first thread, closest to the spark plug ground and electrode. You do not want any anti-seize on the ground or electrode, ever! Do not apply a lot.

Shalon Labari

Supporter

Which is better NGK or AC Delco spark plugs?

Price-wise, the AC Delcos are only $0.10 cheaper than the NGK Iridium IX plugs, though the NGK have iridium cores instead of copper. No, the ACDelco are iridium 41-101 and the equivalent NGK are laser iridium ITR4A15, with the NGK usually being a $1-2 more per plug for the same thing really.

Veridiano Koehlert

Supporter

How long should spark plugs last?

Most spark plugs have a factory service interval of 100,000 miles, though some may be as much as 120,000 miles. Long-life platinum and iridium spark plugs will typically last up to 100,000 miles or longer provided the engine isn't using oil or doesn't spend a lot of time idling.

Numan Mangalampally

Beginner

Should I upgrade to Iridium spark plugs?

Iridium plugs take less voltage to fire which results in more coil dwell time. That translates to better combustion, lower emissions, better fuel economy and more horsepower. Lower your costs. It's true – buying an upgraded plug does cost more than a basic spark plug.

Zulaima Agueda

Beginner

What spark plugs are the best?

Best Rated Spark Plugs in 2019:
  • Bosch 4417 Platinum+4 FGR7DQP Spark Plug (Single)
  • NGK 7092 BKR6EGP G-Power Spark Plug.
  • DENSO 5304 IK20 Iridium Power Spark Plug.
  • Champion RE14MCC4 (570) Copper Plus.
  • Bosch 9652 Double Iridium Spark Plug.
  • NGK 5464 BKR5EIX-11 Iridium IX Spark Plug.
  • Autolite APP104 Double Platinum Spark Plug.

Nan Victor

Beginner

Does NGK make AC Delco spark plugs?

The base of the plugs clearly has "NGK Made in Japan" stamped on them. They look to be a version of the NGK Iridium spark plug made for AC-Delco. Remember, AC-Delco doesn't actually *make* much of anything any more.

Myrtis Thelwell

Beginner

What is a rapid fire spark plug?

ACDelco GM OE (Professional) RAPIDFIRE Spark Plugs are designed for everyday use and are a high quality replacement ideal for many vehicles on the road today. These spark plugs have high-quality suppressors that help prevent misfiring, an optimized plug to boot seal, and a pure copper core for great durability.