Hyundai 3.3 / 3.5 Head Bolt Thread Inserts. Repairing stripped out threads on an aluminum block.

While replacing the head gaskets on our Hyundai I stripped out the threads in the block. Upon investigation I found that this is a common problem with the 3.3/3.5l engines. I found a steel thread insert kit with some beefy inserts that should permanently solve the problem, In the end i wound up doing the whole block. Hopefully this video will give others with this issue an idea of what is involved before they take it on themselves. I'll link to the kit I bought below. I payed for this kit myself and I'm not sponsored in any way by the manufacturer, but the inserts are very robust and there is great support if you have questions.
www.huhnsolutions.com/
#NS300L

[@SteveStoltz]

2 Year Update: kzbin.info/www/bejne/e4GZhnqfqLagppY

[@mazdaland9627]

Excellent Video! Thank you for going through the high effort to make this video for others. Very Helpful! I have a 2016 KIA Sedona with the 3.3 version of this engine and the Bank 1 Rear Head Gasket is leaking at cylinder 1-2 into the coolant system with only 75k miles. KIA wants $10k for a whole new engine. They don't want to even attempt a repair. They know about the Head bolts pulling on some of these engines, so their solution is a new long block. This video was a very good reference. Can't thank you enough.

[@SteveStoltz]

Thank you, I'm glad it helped.

[@keeearrr]

doing the same job on a car that came into the shop. that plastic cap on the set screw comes off and can be tightened down with a 9/64 alan wrench. i ended up using one of those crummy "universal" sockets to drive the tap with a 3/8 ratchet because i couldn't find one of those adapters shown in the video. great video, thank you.

[@mensothefish5709]

Thank you for taking the time and showing me step by step on how to do this. I'm studying up on my automotive knowledge and this video was just perfect for me. Thank you!! :)

[@ydocproductions5593]

That’s gotta be worst case scenario right there. I can see how that would be a frustrating job. Great fix Steve. All that hard work payed off in the end😀👍!

[@davidwoodward7003]

Nice job hitting the key activities and considerations when doing this job. Definitely the best video on this process I've seen on KZbin.

[@SteveStoltz]

I'm glad it was helpful!

[@chefgeorge7172]

Thank you for making this video. It is a great tutorial and definitely the best I’ve seen. Well done!

[@brucemcginnis6141]

I googled it after this video. I ordered the same kit from Norm today. I will do all 6 holes on the bad bank. I might pull the other head too and just do them all. Thanks for the video!

[@user-jv6hr2me2s]

You will have the kid's part number to order it

[@atrayyu3016]

Awesome video, I'm about to do this on a a 2.4 with the same kit (model appropriate kit). From all the videos I've watched about it, this was very clear and concise with good camera angles. Thanks for educating us on the uses of the tapered and flat taps (3 flute and 4 flute), that helped clear up some questions for sure.

[@SteveStoltz]

Thanks, I'm glad it helped you out.

[@quratulain5318]

@@SteveStoltz hi buddy do you have the kit i like to buy from you

[@3rdcoastobs467]

great video Steve! thats a great Helicoil walk through and good explanation of starter and bottom taps. You are a better man than me, I would have blown a blood vessel when i heard the pop of a stripped head bolt 🤣but then again the price of new/used cars justifies this job. super clear picture too, I'm rocking a Samsung S8+ but you look like your filming on a 4k camera with your phone, really clear and informative on the video. great job brother! I'm glad you showed me how to do this but I pray to God I never have to attempt it lol. hope you're doing well my friend!

[@SteveStoltz]

Yeah that pop was a terrible feeling, especially when I was already in a time pinch to get it done, several late nights in the garage. I currently have an iPhone 12, the camera is pretty good in that one. Take care.

[@juliorodrigues79]

Great video. Thank you

[@oficinag2motors]

Hi, Im from Brazil and drive a 2010 3.3 Hyundai Azera ( same engine)… Dont even know how to thank you!!! Your informations are the best, save my day!!! But cant buy the toolkit and inserts from here, please, could you help somehow? God bless you.

[@robertopineda128]

Hi thank for that video is perfect let me ask something in the 3.5 how much torque you due I want to know please thank you

[@nate43bee]

Excellent tutorial! Thank you.

[@SteveStoltz]

Glad it was helpful!

[@andrewayersman6923]

Great video. I’ve done this exact procedure on head bolt holes. It sure is frustrating lol I did it again earlier today. I yelled F$&K so loud after torquing one of the very last head bolts and it spun on me. You must have a very good wife lol Also I haven’t seen one of those craftsman ratchets working and intact in a decade!! I used to rip the gears out of them all the time lol I think they quit warrantying them and I ended up junking a pile of them. Good to see a survivor out there still lolol

[@rabidmitch]

Great video! Did you have enough room to drill the head bolts with the exhaust manifolds in place? I bought the same kit and about to get started on my 2015 Kia 3.3L, but I don't want to have to pull off more than necessary from the engine.

[@robertopineda128]

Hi Steve how much torque you use in tha motor now

[@hectorsanchez3338]

Those KIA/Hyundai V6 3.3 engines have the same problem over and over. The engine block threads strip out of nowhere.

[@rotarythread]

Great fix on the engine! Does these inserts last a long time? Especially on the engines

[@rengerthao9960]

Carious to see your 1 year update, how it it doing now?

[@SteveStoltz]

The head gaskets are doing great. I've since had a phaser go bad and leaks from other places but the inserts are doing their job.

[@jayhm1493]

What would be the torque spec after you installed the inserts? Should you use the same manufacture's torque spec or it can be adjusted to the specific amount of torque and angles?

[@SteveStoltz]

I used the manufacturers spec of amount of turns, but I would imagine it could be torqued somewhere in the 75-85 range like the earlier models specify.

[@999thenewman]

Well at least it's done now. I mean, it runs again, right Steve?

[@brucemcginnis6141]

Just pulled the head off my 14 Sedona with a 3.5. 2 Head bolts were loose and the one came out w the threads. Can I I get the part # for this kit please?

[@robertopineda128]

I have the same Sedona 14 in the rear head I get the same problem in the exhuast side 1 2 3i need to due the video is perfect thank to everybody

[@thecarlotmechanic4531]

So when they say drill 83 mm is that from the Jag surface or the block service

[@charlesjohnson756]

Probably should measure how deep the bolt hole is already and only go that deep

[@albertochavez677]

Hay I need some help what was the siez of the hili cool set I got a M11 - 1-5 1.5D INSERTS

[@SteveStoltz]

The ones that came with the kit are M11 X 1.5 (P/N 1007).

[@albertochavez677]

@@SteveStoltz SO I GOT THE WRONG ONES AND DID U ESE THE ORIGINAL BOLT IN THE BLOCK COUSE MY BOLT SHREEDED ITS SELF OUT CROSSTHRESD NO GOOD THANKS

[@SteveStoltz]

@@albertochavez677 I bought new bolts when I did mine.

[@blackericdenice]

I never torque bolts to spec because spec is too high.

[@kevinhancock4064]

Great video........the thing that concerns me (nothing about your work ) I had my hg and many other things done a while ago .. I keep gett8ng overheating and coolant keeps exploding from.overflow . Its what u said at the beginning. The head was skimmed and oressure rested etc so maybe its not that it's dine wrong but I'm concerned still .

[@SteveStoltz]

I'd pressure check it again to make sure you don't have a crack somewhere else in the system.

[@kevinhancock4064]

@Steve Stoltz it's with garage I bloody hope not given what's been spent or I'll be hitting the roof . That's something I truly hope isn't the case

[@kevinhancock4064]

@Steve Stoltz given the coolamt isn't as nicely coloured as I'd expect I'd say there's either shit still in the system - or misdiagnosed water pump (weakened ) god knows. I'm assuming they done a pressure check a littke while ago via compression as hg checked out OK

[@johnstorz8566]

These engines seem to be known for head bolt block thread failure. I'll bet you didn't strip them at all. They were probably already gone and are what caused the gasket to leak in the first place.

[@SteveStoltz]

I think your right. I remember when taking the heads off that most of the bolts were very tight and I needed a breaker bar to bust them loose, but the one that stripped and the one next to it took no effort at all to loosen. That also happened to be where the gasket was leaking.

[@johnstorz8566]

@@SteveStoltz I'm putting the same inserts in my 3.3 Kia Sedona. When I was at the dealer picking up new head bolts and gasket kit, one of the techs was telling me that there was a problem with the block castings and that it's always that back corner that goes. He told be that inserts won't work and that I should look for a used engine. I don't really believe him, as the kit from Norm Huan seems to be very good. How did it work out for you in the long run?

[@SteveStoltz]

@@johnstorz8566 So far so good with my inserts. The ones I used are very beefy, with deep threads. It’s seems very unlikely to me that they will pull out of the block. Something I noticed with the stock threads is that they go deep into the block but very little of the head bolt threads into them.

[@yoube449]

I thought you're not supposed to use a ratchet?

[@big0bad0brad]

That's why he's holding it over the tap and not on the handle of the ratchet to be able to feel the resistance better

[@anthonydargenio3536]

I can not believe these crooks get 500 bucks for that kit.... WOW

[@lanemitchell52]

Do you still have this kit ? If so wanna sell it ?

[@SteveStoltz]

I do, but I'm going to hold on to it since it can be used with other engines as well.