How to Repair Threads With A Heli-Coil Insert

Demonstrates how to repair damaged threads with a Heli-Coil brand thread repair insert.

Category:

Autos & Vehicles

Tags:

• PowerDirector

[BuickDoc]

What is stronger, the Helicoil or Time Serts?

[ttcautotech]

@BuickDoc Not sure which one is better as I've not used the timeserts very many times. The Helicoils have worked for everything I've used and so have the timeserts. The timeserts I have used have all been soild inserts for spark plug holes. They seem like they might have an advantage.

[jonoalf1986]

Hey man, great video....Just overtightened a head bolt and need to do this to the block, once the helicoil is done do you use the original torque spec's? Or not as much?

[ttcautotech]

@jonoalf1986  It's important to use the original torque specs.

[monsterrmann2244]

Great info sir! What did you pay for that Napa tap set in the background? I have a oil filter (motorcycle) that has the threads stripped. Its a M6 thread.....This is really gonna help me when im ready to fix it. I still am confused on the thread pitch. Is that just the length? Pleas help!

[ttcautotech]

@monsterrmann2244 Not sure what the set cost. We purchased the kit some time ago and now only purchase the inserts as we run out. Thread pitch is the measurement of how far apart or close together

the threads are. In metric threads it is the distance between two threads. Thus, a 1.5

thread pitch would mean the threads are 1.5 millimeters apart. In SAE or "standard" bolts,

the pitch is the number of threads found in one inch. For example a 3/8x16 bolt has 16

threads per inch.

[87transamman]

Thanks for this video man. I'm a new mechanic that bites his nails when he has to do something new to his ride, but you made it easy. This video should be called Helicoil installation for dummies. lol

[toddpf]

Use cutting oil when tapping!

[captainjamesster]

Thanks for the clip. Super clear and easy to understand.

[TheDustysix]

one trick that bypasses the last resort helicoil is to take the damaged hole and clean and retap for the next larger metric for a standard bolt hole. the bolt will not have the same head, or thread pitch as the other fasteners doing the same job, but it frequently works.

[WFCxGoofy]

Hey, I'm doing the same size bolt. I have the thread insert, just wondering what size drill bit you used and which tap to use?

[psycosis100]

Hey boss.Thanks for the upload. Iv got a 1993 ford f150 with a 5.0/302. one of the rocker arms stripped out. will this work on a steal head???

[robin1122211]

hey,

why do you tap that small thing off the heli coil?

greetz

[1ownjoo2]

@MsCraigslister

Or just disconnected the ingition oil from the engine, and crank the engine with the spark plug out. The compression will push the shavings out of the cylinder. You can do that if sand or something gets in there from removing the spark plug if you didnt blow air around the plug before you removed it

[1ownjoo2]

@cameramonkey2

Because stripped a bolt hole usually takes so much metal out from the hole you cant re-thread it the same size as it was before.. The helicoil you thread the whole to a bigger size so the coil will fit in, Then the original bolt goes into the coil.

[viggoM35]

Instead of getting an "installation tool" couldn't you just file or grind a bolt's end to do the same thing? I'm talking as an alternative to buying the tool set and it's only for a one time, one size job.