Essential Tool For Any Mechanic! Save Time & Money!

This essential tool should be in every mechanic's toolbox! It will save you time, money, and frustration when repairing your engines, whether 2-stroke or 4, in a professional workshop or even just as an enthusiast in your garage at home.

Regardless of the machines you work on, from Honda, Stihl, Kawasaki, Briggs & Stratton, Kohler, Yamaha and many more, most have the same size spark plug threads. Therefore, this tool can fit multiple engines across multiple models and brands too.

It's inevitable that you'll need to repair damaged spark plug threads sooner or later, and this simple yet affordable tool does so better than any other I've come across. Whether you're working on small engines or large, 2-stroke or 4, from motocross bikes to lawn mowers, this thread chaser is a versatile solution to a very frustration and common problem!

OTHER TOOLS I USE:

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#Stihl #DIY #tools #enginerepair #threadrepair #honda #mechanic

00:00 How to fix damaged threads on your engine
00:20 Using thread inserts
01:06 Powerbuild Back Tap Thread Chaser
02:37 How to repair spark plug threads
04:18 How to install a spark plug correctly
04:50 How to calibrate a torque wrench

[VintageEngineRepairs]

Any links to products are likely to affiliate links, and I may earn a small commission from qualifying purchases, with no additional costs to you. Thank you!

[Colorado_Native]

One thing the USAF taught me in a year of technical school working on expensive aircraft parts was put the bolt into position, turn counterclockwise until you feel the item 'snap' into place when the threads are aligned, start threading by hand and then tighten. Too many people just try to thread something into place and easily crossthreading. I have never seen this tool. There's a rule I like to follow - Design your repairs and projects around the tools you want to buy. I need one of these! Real bad.

[rtk]

Sixty years of working on small engines and I’ve never seen this ingenious tool. Thanks so much for sharing!

[cujoedaman]

The ONLY rule of thumb when installing a spark plug is to turn it in by hand first or at least just use the socket with your extension, if it doesn't go in with just your fingers, you're doing it wrong.

However, this tool is awesome to see.

[jeffarcher]

To avoid stripping try this trick.
Push down on the plug bolt or nut and turn it backwards.
You should feel a click as the start of the threads pass each other.
Now you're aligned to start going forward.
If it's too greasy to feel the click clean it with WD or carb cleaner.

Of course always start things by hand as wrenches and pneumatic tools will not give you any feel and the damage will be done.

[vinegarjoe]

These work perfectly. About 20 years ago, I cross threaded one of the plug entries on my TVR, in the worst possible location, where it was really hard to access. Was really looking at removing the head with all that entails. On one of the TVR sites, I explained the situation, and an extremely kind chap from around Bristol way, if memory serves, offered to send me one of these FOC. This he did, and with much trepidation I put it to work. BINGO!!!! Perfect result first time. On return of the tool I gave him the price of a few beers, as the time and effort it saved were immense. Because normally the damaged thread is near or at the top, this device goes beyond that and out the other side. When you expand the tap it is normally coming up to a clean thread and basically taps the hole backwards, encountering the damaged thread well into the tap's travel. Excellent tool, which i never knew existed until that kind person offered me it.

[billmitchell]

A few years ago I bought a used Jeep. Changed the plugs and found a stripped thread. Bought this tool. Worked great! A little hard to find, but well worth it

[clintstevenson]

Just another reason why a rubber hose as a spark plug starter work! Great video Tom. That older green engine you had running looks like a great restoration

[AnonymouslyHidden]

it's very rare do you see a video title like this that isn't just scamming you into clicking the video. thanks for the info

[ClipheApex]

I'll probably never need it but I want it, just in case. Remember. He who dies with the most tools wins.

[daveski]

You just taught me the answer to my dilemma. From the inside out.... brilliant. Thank you!

[TheGreasyShopRag]

Good job showing how that thread chaser works.

[dev-debug]

I have a lot of mechanics tools collected over the decades but never saw one like this. That is slick !

[terryenyart]

Great idea! I learned long ago not to get myself in those situations, but there will always be repairs on other people's stuff. I have standard & metric taps/dies & many thread files, thread pitch gauges, rethreaders for clean-up & a lathe & mill. I've even made a few taps myself. And have many threaded inserts, heli-coils etc. Being proficient at properly installing a heli-coil could be entire video as theres only one correct way, and when done properly it will last firever.This expandable design never occurred to me as I always got the job done. But I like knowing it exists. Thank you

[mikedieken]

Yes, this is a must have tool. I got careless changing plugs on a six cylinder outboard marine engine cross threading the new plug and damaging the threaded hole quite badly. This tool saved me. Great little invention.

[antelopeslr]

I’ve been an Aviation Technician for over 30 years, service my own cars regularly, and never have I once ever cross threaded anything. I don’t understand how people do this. Start the fastener by hand and if it feels like is binding, then back it off, check the thread and start again. Don’t just grab a ratchet and “make” it fit!

[paulpflaumer]

As.a teenager an old experienced mechanic told me how to handle threads nuts and bolts, especially on fuel and brake lines plus oil pans. 60 years later, I'm glad I followed his advice. Saved many problems

[SwapPartLLC]

I've always used a straight, short piece of hose for starting spark plugs. You need a diameter which will fit over the porcelain just snuggly enough to hold it. The hose won't allow the amount of torque required to damage the threads, so if you're threads aren't aligned properly, it will slip. Once you get a few turns, you can safely switch to a spark plug socket.

[Carlitosway]

Well that is a bad ass little tool there! I've never had an issue chasing threads and packing grease on the tap but I like the theory behind this one and think I'm adding it to my tool box.

[nspro]

They do make a thread repair kit that can be done with the head on. It is not a heli coil, it is a bushing threaded inside and out installed like a heli coil. You install it with loctite and also stake it in place. I packed the flutes with grease to catch the chips but it is a slow process because they quickly eat up the grease so you have to go in and out many times. Still worth it. The ones I have seen/done have held for many years and many hours.