Helicoil 5334-14 Save-A-Thread Thread Repair Kit M14 x 1.25

This was used of 2005 Ford F150 with 4.6L engine. It worked perfectly for the blown out spark plug #3. Make sure piston is at bottom dead center. To determine this, I used a big plastic plug that kinda stuck in the spark plug tube and had a tiny bit of a seal. I crawled under truck and turned engine over for what felt like a lifetime, because it is hard to get to the crank bolt with the suspension and shroud...but it is possible. When the engine has both valves closed and the piston is at bottom ready to go up, that plug will pop out loudly. The use of the tap is easy. Fill the end of the grooves of the tap with grease to catch metal shavings. Go in 4.5 turns, take it out and clean tap. go in 4.5 new turns, take out and clean. Wash rinse repeat. Do not do excess turns or more metal will fall into cylinders. When done, use compressed air to blow out. I sprayed a little carb cleaner to get rid of grease. I used the longest thread insert. I gently and lightly coated the new spark plug with antiseize compound, and I used permatex 27200 red threadlocker on the outside of the insert. I very gently screwed this whole thing in the cylinder. I was patient and waited 45 minutes before starting. It has held up a month now. I recommend this over the $100's people say you need to spend on super duper tools. I just do not recommend people buy a old Ford truck with one of these motors! The inconvenience was horrendous, and the research was tough. I only saw a review here on Amazon that explained it like I am. So I am also sharing the process. Takes about hour and a half constantly getting up and down on truck. Maybe 12 times to clear hole, then to reassemble.

Package arived as expected. It worked great to repair my chainsaw spark plug threads.

Honestly it worked great! Very easy to use! Just a ratchet and a bit of time! Heck I didn't even take the head of the engine off, just the exhaust muffler to get better access to the bore for cleanup. Just made sure I was able to get every last bit of metal shaving out (For the record I did coat the tap with grease to minimize shavings falling into the bore, but obviously it's not going to get it all). When I finished with the boring/tapping step, and cleaning up the area, all that was left was to put in one of the collars provided! There are 3 different sizes, and if you're fixing a chainsaw, you'll want to use the one smallest in length. Before putting in the collar, I coated the outside of it with a good coat of RTV (I used Permatex's ULTRA Grey). I then screwed the collar in until it was just BELOW flush with the surface, making sure that the "teeth" part of the collar were facing up/out! After seated, I gave it a good couple taps with the provided die using a hammer to expand those teeth on the collar and bite into the threads for a good, solid fit that wouldn't back out anytime soon! So far there hasn't been any troubles with it! It's holding very well! If you've got a stripped spark plug hole, this is a great solution! Definitely recommend!

Saved the mower from the junkyard. Got a further life from this Eager 1 mower. Repair went flawless. Excellent tool to have in your tool chest.

1997 Expedition 5.4 Triton. (Eddie Bauer 4x4) This is the 14mm x 1.25, but if you're here for the Expedition you know that. Worked perfectly. Had a cylinder 3 blow out close to home. Ordered this two day shipping along with all new plugs, coil packs. Full disclosure: I removed the air intake, pvc hoses, a bracket, unplugged a few wires to move out of the way, and fuel rail. (Cleaned and put new o-rings on injectors. Got these for $5 at auto parts store because I was already tackling this repair.) It's easier than it sounds and it's literally like 7 small bolts/screws. Lots of YouTube videos on this, watched a bunch to gather some tips. I found using grease while re-threading was very useful. I cut the old rubber boot off my broken/blown out coil and wrapped it around my socket extension so it for perfectly in the hole. It kept it nice and straight. I screwed in and removed it 3 times while boring so I could blow/wipe off shavings and regrease. I used a combo of compressed air and a shop vac to clean out shavings. I attached a smaller old hose from a pond pump to the end of the vac hose with some duct tape so it fit in the plug hole. I didn't want to use a spark plug to screw in Hexicoil insert, so I used some of that smaller hose with a bit of electric tape wrapped around it so the insert was nice and tight. I put some thread lock around the insert, screwed it in to where it was flush (no camera here, I looked in there with a flashlight.) and popped out my hose. Then I gave it 2 solid taps also using the socket extender, screwed in my plug which went on easy and torqued. No one says you need to do this but I waited 24 hours before starting it. I had plenty of time to change all the other plugs, coil packs while waiting. I cleared the codes with my reader, and it started perfectly. It's been 3 weeks and she purrs like a kitten.

The spark plug hole on my 25 year old pressure washer stripped. I used this insert to put in a new plug. I was able to get the pressure washer going again and have already put another 25 hours on it without issue.