stbri
21.04.2021 18:04:48
This article, with segmented videos, will show you step-by-step how to re-thread a spark plug hole and insert a thread tap so that you can insert a new spark plug that will stay in place in the cylinder head.
See full version: Repairing a Blown-Out Spark Plug Using the Save-a-Thread HeliCoil Repair Kit (With Video)
This article, with segmented videos, will show you step-by-step how to re-thread a spark plug hole and insert a thread tap so that you can insert a new spark plug that will stay in place in the cylinder head.
You can use a thread tap to make the spark plug hole larger while creating new threads. Then you take a new insert—also called a HeliCoils or TimeSert—thread it, and torque it into the enlarged hole. You apply high-temperature RVT to the insert's threads to prevent it from coming out. Then you thread the new spark plug into the hole of the insert. [links]
After I diagnosed a blown out spark plug in my customer's Crown Victoria, he went out and bought a "Save-A-Thread" kit containing a thread tap with 3 different lengths of HeliCoils. I picked the HeliCoil that matched the length of the spark plug threads and screwed it into the tapped hole. Once I locked the HeliCoil in place, the threads inside the coil, matching the threads of the spark plug, allowed the plug to be torqued back into the cylinder head without coming loose. [links]
Spark plug thread repair kits are a go-to solution when the spark plug threads in your vehicle's cylinder head have been stripped or damaged. This can be caused by over tightening or cross-threading a spark plug. Using a spark plug thread repair kit could save you from having to replace the car's cylinder head. A special tool secures the thread insert inside the spark plug port, restoring threads without tapping the head. At O’Reilly Auto Parts, we carry spark plug thread repair kits, spark plugs, and the tools you need to get your vehicle back on the road.
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Remington Military Defense New Hand guard uses TIME-SERT inserts to strengthen threads.
Time-Sert thread repair kits.
TIME-SERT� is self locking. On installation the bottom internal threads of the insert are cold rolled to expand the mating external threads into the base material locking the insert in place. Locking mechanism is at the bottom of insert.
HIGH QUALITY PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES
Designed by Americans Made by Americans
TIME-SERT� is a thread renewal system
Repair stripped or damaged threads
Also Used in New application design
Answer: I personally recommend the Time Sert or the Calvan tools because they are a better repair, but if you would rather use the thinner Heli-coil insert, the HEL5396-14 has the longer thread tool than the standard Heli-coil kit. here
Answer: While it is true there are only five threads for the spark plug in this design engine for the spark plug and the Calvan insert has five spark plug threads as well, the Calvan spark plug insert is steel not aluminum and the insert itself is held in place with ten external threads. The Calvan spark plug insert improves the design and durability at fraction of the cost of replacing the cylinder heads with the same design weakness. Time Sert offers fully threaded inserts PN 51457. here
Answer: Yes, the Calvan spark plug repair insert is a larger insert and has worked well for our customers before, saving the expense of replacing the heads. The Time Sert 5600 has the largest outside diameter and therefore can save heads that have pretty large holes. In fact up to .73". here
Answer: You are right this is a totally different issue, but you're not alone. What we used to sell for this problem was a spark plug remover, a specialty tool made by Rotunda, the number is 303-1203. We use to sell a lot of the 303-1203 special service kits, but now the LIS 65600 is what we sell the most of for removing Ford broken spark plugs. See the LIS 65600 DLT in use tool blog for more information.
Question: I am selling my truck as fast as I can get a spark plug to stay in long enough to get rid of it. I wanted to use a Heli-coil because I won't have to drill, but the thread tool isn't long enough to reach in the spark plug recess, any suggestions? here