Today while torquing my head on 1 of the studs broke free and stripped the threads in the block. I had an issue getting the stud in at first and had to chase the threads, so I am guessing when they came out the threads were alittle messed up.

What has people been using to fix this? Helicoils, time serts??

Any help would be greatly appreciated.

 

Helicoils are it. you dont have another choice as I see it.

 

a friend refered me to time sert's which appear to be a beefed up helicoil, the only issue is in the discription is says not used for deep head studs and I am not sure if out studs count as that or not.

 

Anyone used these before?

http://www.timesert.com/html/universalheadbolt.html

maybe on a DSM, or another car?

 

Timeserts no question. In fact, Timesert makes a specific oversize kit for those who failed with Helicoils.

I did that to my Sleeved Honda block when 8 of the threads were stripped. They're better than ever before. They'll work.

 

Hondas have head bolt threads that are way down n the block. Mitsu threads are at the surface so that is not an issue for you. Just make SURE that you install them straight. If you get it even a small amount crooked it will not fit with the head on and it will be a junk block. I would have a machine shop do it since they have fixtures and drill presses to make sure it is 100% straight.

Good luck.

 

Timesert. Just ask any BMW tech in the dealer right now, LOL

 

Clean up shavings well!

 

We are actualy taking the entire car to a machine shop that is going to do the work. Since the time sert head stud kit is $400 and they have the kit their its just easier to have them do it and pay $50-100 vs $400 for a kit that I may very well screw up.

 

I see you live in tokyo are you military, very well english speaking japanese, or exchange student,(i could go on)??

I ask as I was stationed in japan from 02-05 and actualy married a japanese national, her brothers live up in tokyo where as the rest of her family is down in Osaka and Hiroshima

 

I am active AF. I was in Japan 2011-2013, I'm in New Mexico now.

 

Funny, I spent 7yrs in japan in the 60's and early 70's-- Kanto Mura-- base is closed now and down south--name of base slips in an out.