My buddy is midway through a mild b18c1 build. When going through the torque sequence on his head studs one of the ARP's was about at spec then spun free. We pulled the head and the stud pulled all the threads from the block.

Any suggestions on where to go from here. I've read a little about time certs, will these be a long lasting fix?

thanks

 

You could heila coil it (may get flamed) But the heila coil will actually be stronger then the original threads.

 

helicoil

 

Helicoil is the way to go

Alot of people think they are a bodge repair, but as stated already it will actually be stronger than the original thread if installed correctly.

 

Timesert.

 

helicoil that bitch and call it a day

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Master of the Universe &raquo;</TD></TR><TR><TD CLASS="quote">Timesert.</TD></TR></TABLE>


oh hell no with the Helicoil. Thats the last thing you wanna do to head stud threads. TIMESERT is the ONLY way you should fix head stud threads.

Machine shops who fix Honda blocks often have these things available. If you want to buy them, theyre about $400/kit for Honda B-series blocks. We charge about $60 for the first hole and $20 each additional hole.

I wish I had pictures on hand of what they look like, but they are like "sleeving" the old threads and putting in new Sleeves. Not just tiny *** threads on Helicoils.

 

See "installation tech" post here https://honda-tech.com/zerothread?id=1988551

 

yup there you go. Check out how thick those Inserts are. Waaaay better than helicoil.

 

Go with the timeserts. I've used those on a couple of blocks with messed up threads. If your going to have a machine shop install them i'd have them install the head so if more of them break they can just go ahead and fix them. One block i had needed all of them changed.

 

Timeserts. Out of the 8-10 blocks we have repaired, no comebacks.

 

I have always wondered what a timesert was. Know I now. The pic.

 

HELICOIL FTW!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrid2007 &raquo;</TD></TR><TR><TD CLASS="quote">Helicoil is the way to go

Alot of people think they are a bodge repair, but as stated already it will actually be stronger than the original thread if installed correctly.</TD></TR></TABLE>

Timesert for sure. repaired a few blocks with this. and trans, don't waste time with Helicoil....

 

Ya, I have 3 diff kits for it.
We got the first repair, which is a kit if you havent done any helicoil or timesert in that thread before. Then you have the "Big Sert", which is the "second repair" if its been helicoiled or if you mess up the first repair somehow. This is for the B-series blocks, or actually any of the 11x1.5 headbolts.

Then the D-series has its own kit also.

A good kit to also have if you do alot of Honda/Acura stuff is the Transmission bolt thread repair kit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbowa &raquo;</TD></TR><TR><TD CLASS="quote">I have always wondered what a timesert was. Know I now. The pic. </TD></TR></TABLE>

know i now &lt;--- that just gave me a headache lol

kidding man!


Timesert FTW!

 

timesert is the way to go i used to install them into stripped holes in bosch fuel pumps all day long never had one come back as long as the hole is done right the first time

 

American Honda rec's TIMESERT...

 

timeserts all the way.

 

I still stand by what i say

 

Timesert

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrid2007 &raquo;</TD></TR><TR><TD CLASS="quote">I still stand by what i say</TD></TR></TABLE>

love to see you helicoil a headstud and then torque it down... lets see how long that lasts.... its not fun to "fix" it with helicoil and then have to pull it all apart because it can't hold the torque..

look at helicoil!! it looks like a damn spring! how well does that look like it will hold a torqued down headstud????




now look at the time-sert




also some more details about timeserts.


TIME-SERT® is a solid bushing insert. This guarantees easy installation and allows for full load use of tapped hole, ensuring protection against stress and vibration.


TIME-SERT® is thin walled due to synchronized internal
external threads. Thin cross sectional area allows for installation in areas of limited space and clearance material.

TIME-SERT® is self-positioning. Having a flange on the top of the insert will insure that the insert will have positive placement and cannot wind down into the newly repaired hole.

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.

But hey if helicoil works for you then good luck....



Modified by h22crxpwr at 10:37 AM 1/16/2008

 

Yes they look like springs. Your point?

I have installed hundreds of helicoils. Just last week i bolted a 2 tonne crane down to an alloy base that i had helicoiled. The crane has a 2.5 Tonne safe working load.

 

I would never ever ever put a Helicoil in a head stud thread ever!!! You have to think how much stress that headstud goes through when on boost or just even everyday use. And imagine the torque that is needed to put those headstuds on the block. The Helicoil is just a problem waiting to happen.

I admit, I didnt know about Timesert back in the mid 90s and I've used Helicoils back then. I dont even know if they had this over 10 yrs ago. But one thing for sure that I can stress to people that run into a headstud thread problems, is to fix it right and use a Timesert.

Maybe on other low stress threads, its not going to be an issue to use a helicoil, but FOR SURE with Headstud threads... NEVER use them. Just saying from personal experience with many customer's blocks and personal stuff back in the day. Helicoil may work in other cases, but this is just my 2cents based on having seen dozens of messed up blocks using helicoils.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ExospeedAMcrx &raquo;</TD></TR><TR><TD CLASS="quote">I would never ever ever put a Helicoil in a head stud thread ever!!! You have to think how much stress that headstud goes through when on boost or just even everyday use. And imagine the torque that is needed to put those headstuds on the block. The Helicoil is just a problem waiting to happen.

I admit, I didnt know about Timesert back in the mid 90s and I've used Helicoils back then. I dont even know if they had this over 10 yrs ago. But one thing for sure that I can stress to people that run into a headstud thread problems, is to fix it right and use a Timesert.

Maybe on other low stress threads, its not going to be an issue to use a helicoil, but FOR SURE with Headstud threads... NEVER use them.</TD></TR></TABLE>

Same here.. i didn't know about these in the 90's either.. but when i found out about them and used them and saw the machine shop use them to repair my headstud threads.. i was sold.. these things (timeserts) are solid.. they work great, are not too difficult to install and have a variety of uses including sets that will allow you to fix spark plug threads while the head is still on. and now i use them on everything that has a stripped bolt hole.. trans case. side of the block where the mount bolts to.. anything else that needs a repair. i have used helicoil and in my experience they didn't work anywhere near as good as timeserts..