Skip the auto shop - Our mechanics make house calls

Q: Helicoil fell into spark plug well. what do I need to do to get it out. thank you.

asked by on

I stripped a spark plug and when I was trying to thread it the helicoil went down to the cylinder head. I've already tried a magnet with no success, I just need an explanation of the procedure I need to do. I can't afford a mechanic right now so I have no choice but to do it myself. I'd appreciate the help very much. Thank you

My car has 130000 miles.
My car has an automatic transmission.

There are only a couple things to try. One way is to use a magnet like you’ve already tried to get into the cylinder. I’m not sure what kind of magnet you used but you may have to use a flexible type of magnet to get into the lower areas of the cylinder in order to get the piece out.

Another way is to use flexible mechanical fingers and a long piece of clean rag with a dab of thick grease on the end. Work the rag into the hole and onto the piston. Then try moving it around to try and get ahold of the piece. Once you do this you should get it out.

If these methods don’t work you will need to blow compressed air into the hole using a long thin air tube and use a rag to catch anything that comes out. If you’re still not able to get it out then the head will need to be removed completely.

If you’re unable to get the piece out and your budget allows some assistance from a mechanic, consider YourMechanic, as one of our mobile technicians can come to your home and help service your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • Helicoil fell into spark plug well. what do I need to do to get it out. thank you.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My truck died while driving. Now will start, but dies when I push brake. If I start in neutral, I can put in drive and go but dies - 2003 Ford F250

Hello - your symptoms suggest that once your cold start features are no longer needed - engine warming up - there is an air "leak" that ruins low speed running. Causes could be a leaking exhaust gas recirculation (EGR) valve,...

Q: Will bad brake calipers cause excessive vibrating in steering wheel while driving?

This may very well be caused by the uneven wear on the front tires. When uneven tread is subjected to various road conditions or braking power, this will definitely cause a vibrating or shaking feeling. This may also be caused...

Q: The car has no compression and there is a lot of oil in the cylinders how would I fix this?

Hi and thank you for contacting YourMechanic. If there truly is no compression and signs of oil inside the cylinders, the only way to fix this issue is to have the engine rebuilt. The piston rings are worn or broken...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...