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The spark plug in my Husqvarna 326L wobbles and causes the engine to stop because the threads are stripped where it is screwed in.

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There is a thing called a helicoil that can fix this issue, they are sold at auto stores. the hole is drilled slightly larger and thread tapped and the helicoil is like a wire tube you thread in and leave and the plug screws inside of it. this is hole they fix bad spark plugs on cars. bring spark plug with you to store and they can match it up for size.

Posted on Apr 23, 2010


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The area where the spark plug screws into is stripped out. How do I fix that? I have a Husqvarna 455 Rancher

The threads can be repaired using a helicoil. Here is an example. Just make sure to get the correct thread for the unit you are repairing.
Helicoil 5334 14 Save Thread Thread Repair Kit M14 1 25

Nov 25, 2014 | Husqvarna Garden

1 Answer

How to repar stripped spark plug threads/ where to purchase?.......???????

Helicoils are the best "at home" repair I know of for stripped spark plug threads in a head.

Sep 11, 2014 | Motorcycles

1 Answer

Spark plugs

a really good mechanic might be able to install HELI COILS for that cylinder .

Dec 19, 2017 | Husqvarna Garden

1 Answer

Spark plug cylinder stripped

This can be repaired with a heli coil ( thread insert ) they are normally a short 14mm thread, an good chain saw/engineering shop will do this for you, or you can purchase your own kit and do it, but this will be expensive if you are only doing one

Feb 29, 2012 | Husqvarna Garden

1 Answer

How to change spark plugs on 2001 chevy lumina

First, I would highly recommend that you also purchase a set of igniton cables and replace these also because you are most likely to have damaged spark plug boots when you remove the boots from the plugs. Trust happens about 95% of the time, and you will be way ahead of the frustration if you are prepaired.

Pull the spark plug boots off of the spark plugs.


Allow the engine to cool before removing the spark plugs. Attempting to remove the spark plugs from a hot engine may cause the plug threads to seize, causing damage to cylinder head threads.

Clean the spark plug recess area before removing the spark plug. (spray brake cleaner and compressed air works well) Failure to do so could result in severe engine damage because of dirt or foreign material entering the cylinder head, or by the contamination of the cylinder head threads. The contaminated threads may prevent the proper seating of the new plug. Use a thread chaser to clean the threads of any contamination.

Screw the spark plugs out of the cylinder head.
Check the air gap at the electrode end of the spark plug.

The specification for the plug gap on your vehicle is 1.524mm (0.060 in)

Place a SMALL amount of nickle-based antiseize compound on the spark plug thread, being very careful not to get any on the porcelain portin of the plug. If you do get antiseize on the porcelain part of the plug, it is imperative that you clean it off thouroughly using brake cleaner and a clean rag, otherwise it could cause cylinder misfires.

Screw the spark plug into the cylinder head and torque to specifications.
The spark plug torque specification for your vehicle is 15 Nm (11 ft. lbs.)

NOTE: Failure to properly torque the plugs can cause severe engine damage. Overtightening the plug can damage the threads in the cylinder head and/or make spark plug removal in the future impossible. This will cause you to have to remove the cylinder head for repair the next time the vehicle needs service on the spark plugs.
Undertightening can cause the plug to leak compression and damage the threads in the cylinder head. This can result in the plug blowing completely out of the head causing severe cylinder head damage.

When replacing the ignition cables, make sure they are routed EXACTLY as they were originally routed from the factory. Make sure that all protective wire loom and fasteners are transfered to the new wires and secured properly. Failure to do so can cause damage to the cables, engine misfires and can cause the spark plug wires to "spike" sensitive sensor circuits that are nearby and cause damage to the sensors or your computer modules. Improperly routed ignition cables have also been known to cause interference in radio and stereo systems.

HINT: The rear plugs on your engine are much easier to get to if you remove the two engine struts that go between the engine and the upper radiator support. You can then use a ratchet strap to pull the engine forward to get more room to work on the rear plugs.

Aug 12, 2011 | 2001 Chevrolet Lumina

1 Answer

Spark plug tube striped spark plug jumped out of tube

The issue seems to be related to the spark plug threads. The spark plug is either not tightened down or the threads are stripped, and during the compression stroke when pressure is applied inside the combustion chamber, the pressure leaks thru the spark plug threads and blows off the spark plug boot. If the spark plug is not tightened and the threads are ok, then tightening the plug will resolve this issue. If the spark plug threads are damaged, then the threads will need to be repaired, and will require the cylinder head to be removed to repair the stripped threads. Taking the cylinder head off requires the engine's top end to be ripped apart and re-assembled....big job.

Nov 26, 2010 | 2004 Dodge Stratus

1 Answer

I can't get the spark plug tight on a 2000 Lincoln towncar

If the spark plug is turning and the threads are properly seated in the threaded hole, then the threads are stripped out. The only way the threads can become damaged is using a wrench to start the threading process. Spark plugs should always be started by hand, even if a socket and extension is used, it should be turned by hand, not with a ratchet. Unless the spark plug was cross threaded before, verify the threads are engaging and turning by hand only. Otherwise the hole will need to be re-threaded and will require head removal to do it correctly and keep metal from entering the combustion chamber during the process, thus causing internal engine damage.

Nov 25, 2010 | 2000 Lincoln Town Car

1 Answer

Replacing rear spark plugs


Things You'll Need: Spark plug socket and wrench

Twist and pull the spark plug wire from the leftmost spark plug on the front of the engine. Grasp the spark plug wire by the "boot" or the end of the wire that cups the plug. Avoid pulling on the wire itself.

Place the spark plug socket on the spark plug. Turn the wrench counterclockwise to remove the spark plug. Unscrew the plug until it is fully removed from the engine.

Install the new spark plug by carefully placing it in the hole by hand. Turn the spark plug clockwise, but do so only gently by hand. Ensure that the spark plug screws in gently and naturally. Stop turning it at the first sign of major resistance. Check to make sure that you have not stripped the threads. Move on to the next step only when you're sure that you've positioned the plug at the correct angle and have it threaded most of the way in.

Position the spark plug socket over the spark plug and tighten it with the ratchet. Avoid tightening it too much. It will offer increased resistance for about half a turn as the metal washer on the plug is compressed. Once it is good and snug, stop there.

Replace the wire by handling the boot of the spark plug wire. Listen for a "click" that indicates correct installation.

Use this procedure for the remaining two plugs on the front and the three plugs on the back of the engine. Remove and replace one plug at a time, to ensure that you don't mix up the wires.

Best regards.

Oct 29, 2010 | 2003 Mazda MPV

1 Answer

Husqvarna Leaf Blower won't start

yes, it is. i suggest checking to make sure the plug is firing--you can check by removing it, plugging it back into the plug wire and resting the threads of the plug on any ground--usually right outside the spot where the plug screws in. have someone pull the cord while you see if the plug fires. DON'T touch the plug while the engine is being cranked. also, even if you see a spark, it may not fire inside the engine. if the spark is weak, you may want to put in a new one.

May 11, 2010 | Husqvarna 28CC Handheld BlowerVac

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