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Old 05-16-2011, 12:57 AM   #101
minifreak
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I just recently fixed the threads in my Brembo's using the Time-sert kit and I am really happen with the result. The tough part is keeping the drill/tap straight.


Quote:
Originally Posted by minifreak View Post
Started rebuilding the Brembos calipers.

The rears has snap bolts and damaged threads so after talking to Jason I picked up the Time-Sert thread repair kit with stainless steel inserts.

Damaged threads:


Drill out the damage threads:


Bored out and counter-sunk:


Tapping new threads:


Great success


One caliper down and a few more to go. I really need to find my electric drill to speed up the process...

I've also picked up the dust boot and seal kit to replace those on the Brownbo's
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Old 05-16-2011, 07:27 PM   #102
Felix C
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Has any one tried soaking them in penetrating oil over night? I dread doing my brakes.
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Old 05-16-2011, 07:35 PM   #103
JiveMasterT
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Quote:
Originally Posted by Felix C
Has any one tried soaking them in penetrating oil over night? I dread doing my brakes.
That didn't work for me. The problem is hardened steel bolts in an aluminum caliper.
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Old 05-16-2011, 09:32 PM   #104
vision.dynamix
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This happened in my StopTechs, too.
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Old 09-05-2011, 05:49 AM   #105
xemetrix
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Quote:
Originally Posted by txl146 View Post
anyone had success in eliminating this issue by applying anti-seize?
I have a 2005 Sti at around 93k miles now. I replaced the bushings in my rear knuckles at about 60k and used copper anti-sieze on the inside rims of the rear rotors where they contact the hubs and on the rear caliper bolts. At that time, a hole in one of the calipers had stripped half-way. The bolt tightened back up with about half of the original threads intact. The fronts have never been off until tonight. (since I've owned it...from 52k miles+) I decided to replace my brakes since they've been squealing alot lately. Turns out, the pads are still a good ways away from the squeal tabs, but deeply ground into the rotors. I started by removing the fronts. The drivers side caliper came off with a breaker bar lengthened by a jack handle. There was much bolt squeaking, but the threads were fine...no anti-sieze there. The rotor was another story, I've done plenty of brakes in the past, but no other rotors have given me this much trouble. Lots of WD40, the 2 small bolts through the rotor, and alternating with a metal hammer and huge rubber mallet over too long a period of time finally worked. Next, I broke the lower passenger front caliper bolt, walked away and started on the rears. They came apart like butter-except... In my frustration, I forgot to turn down the parking brake gear and broke a spring retainer...but the anti-sieze worked so good that I thought I should share the info. I used the permatex copper anti-sieze in a small gold tube. Someone said previously that graphite is bad, and I think this may have graphite in it....so be your own judge. There was no corrosion and the rotors came off with little effort by using 2 bolts in the holes. The caliper bolts came out with no issues. I drilled and re-tapped the hole in the front and gave up for the day. I will be using the anti-sieze again when I put everything back together.
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Old 09-05-2011, 05:56 AM   #106
sc00by4life
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Anti-seize is NOT going to prevent galvanic corrosion. the problem is (thats been stated numerous times) its a steel bolt going into an aluminum caliper, in a high heat area! there is literally no way to avoid this fact happening EVENTUALLY.

Time-sert kits seem to the the most permanent solution.
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Old 09-11-2011, 04:58 PM   #107
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I just had this happen the other night. Fortunatley I was able to reuse the threads. I would like to fix the problem though. I have never used helicoil or timeserts. I am pretty mechanically sound but is there any tricks or tips to installing them? Just can't afford to mess up but I don't like paying people to do an easy job either. Is it basically this:
1 drill hole with bit provided with kit
2 use tap provided to thread for helicoil or timesert
3 screw in helicoil or timesert using provided tool
4 bolt everything back together.

Is it pretty much that simple? Thanks. I spent 3 hours on 2 bolts trying to get them out
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Old 10-09-2011, 03:58 AM   #108
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Has anyone fixed a stripped bleeder screw hole on the sti brembos before? I bought a set of this guy that failed to tell me one of the bleeders was stripped. He won't refund my money so I'm going to try and fix it. Looks like Dorman sells a repair kit 13915. Has anyone had any success with the ?
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Old 10-09-2011, 09:45 AM   #109
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Quote:
Originally Posted by pips888 View Post
Has anyone fixed a stripped bleeder screw hole on the sti brembos before? I bought a set of this guy that failed to tell me one of the bleeders was stripped. He won't refund my money so I'm going to try and fix it. Looks like Dorman sells a repair kit 13915. Has anyone had any success with the ?


The repair kit can be used, but you should probably have a machine shop do the work since the stakes are high and you only get one shot. I'm convinced the 1/8 NPT kit could be used on a basic stripped out caliper, but on my case, I removed just a bit too much material drilling the bleeder out so I stepped it up to the 1/4 NPT unit. There is barely any room for it and not much material left! It has about 3 turns of engagement and required a modified tap to do it. I used high pressure thread sealant to prevent any leaks. The machine shop charged me under $40 to do it. Good luck.

For what it's worth, there is a specific method of removing stuck bleeder valves and it involves hammering a dowel pin into the center of the bleeder valve before removing it. This prevents the collapse of the valve under high torque which causes it to strip out or twist off.

You *might* be able to buy the right thread insert kit and repair it that way as well, but you must be dead nuts or that valve won't seat and it will leak.

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Old 10-09-2011, 10:50 AM   #110
Ysidro
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Ran into this thread stripped problem while doing my brembo swap.
It is a bitch! Brembo and other big brake makers should take note and install the time-sert or heli-coil straight from the factory. Theres too much problem.

Anyone know of any bbk company that install time-sert or heli-coil straight from the factory?
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Old 10-09-2011, 11:13 AM   #111
pips888
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Quote:
Originally Posted by kpluiten

The repair kit can be used, but you should probably have a machine shop do the work since the stakes are high and you only get one shot. I'm convinced the 1/8 NPT kit could be used on a basic stripped out caliper, but on my case, I removed just a bit too much material drilling the bleeder out so I stepped it up to the 1/4 NPT unit. There is barely any room for it and not much material left! It has about 3 turns of engagement and required a modified tap to do it. I used high pressure thread sealant to prevent any leaks. The machine shop charged me under $40 to do it. Good luck.

For what it's worth, there is a specific method of removing stuck bleeder valves and it involves hammering a dowel pin into the center of the bleeder valve before removing it. This prevents the collapse of the valve under high torque which causes it to strip out or twist off.

You *might* be able to buy the right thread insert kit and repair it that way as well, but you must be dead nuts or that valve won't seat and it will leak.
Awesome! Thanks for the response. I'm glad it worked out for you. I'm still waiting for palpay to make a decision on my claim but I doubt I'll get money back since I paid him cash and it's become my word against his on the stripped bleeder. I also looked into heli-coils but had the same concern as you. If you're not dead straight, it's not going to seal. So i think i'm going with the repair kit. It gives you a little more room for error. Thanks again!
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Old 10-09-2011, 11:30 AM   #112
florotary
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I need to do this on my caliper mounting bolts. Just a little nervous cause I have never used helicoil
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Old 10-09-2011, 01:17 PM   #113
Dirty25RS
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I just snapped a bleeder in half last weekend trying to bleed.

Man these Brembo brakes are troublesome
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Old 10-09-2011, 02:28 PM   #114
wistful
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what'd you do for that? I stripped the threads out of the bleeder too. It was a time crunch so I ended up just buying a new caliper. I still have the caliper sitting in my garage.

Don
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Old 10-09-2011, 02:38 PM   #115
kpluiten
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I'm going to start buying up stripped out bleeder calipers and repairing them. It seems like every STi owner in the midwest has at least one of these calipers sitting around.
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Old 10-09-2011, 11:30 PM   #116
Dirty25RS
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I didn't do anything for it.

I guess I will try to use an easy-out to get it out. Haven't had much luck getting things out of these calipers with easy outs in the past though...
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Old 10-11-2011, 04:10 PM   #117
InfamousDX
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Just had AZP Installs (tri-state vendor here on NASIOC) helicoil my front Brembos. God what a pain these expensive brakes can be...
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Old 10-17-2011, 08:08 PM   #118
florotary
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I may take mine somewhere to have them do mine. Ive never used helicoil and don't want to mess up my caliper
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Old 10-22-2011, 11:51 AM   #119
florotary
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Just to be sure before I buy the timesert kit. The m12 x 1.50 is the correct kit right? Also the kit comes with 16.2mm inserts is that the right insert or does it need to be longer. Thanks
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Old 10-28-2011, 02:18 PM   #120
Gheorghe
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I just did my front brakes on my 07 STI @30K miles two weeks ago and on the right side caliper the top bolt was a pain to remove. When it finally came out some of the thread material were imbedded on the tip of the bolt. I looked inside after I pulled the caliper off the knuckle and saw the threads weren't destroyed. I then took the lower bolt from the same caliper with some oil and chased the threads and they cleaned out ok. I cleaned up the threads on the bolt and it bolted back alright. I didn't want to mess with a helicol so thank god I didn't have to.
I am having a hard time believing this is galvanic corrosion because it doesn't happen to all bolts at least not in my case. If it was galvanic corrosion it should happen to all four bolts since they are in the same location and same environment. I though it is more of an issue with over torqueing from the factory but this is just my opinion. I wonder if this happens to the EVO/350,370Z/Acura… cars that run this style of caliper as well
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Old 11-03-2011, 12:08 AM   #121
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I just did this today using the Time-Sert kit. I have 4 inserts left, and if anyone wants to buy it cheaper than they can new, let me know, and I'll ship it to you. I would recommend using a drill press, as it wasn't an easy task to drill out using a hand drill.

http://i.imgur.com/DDYGJ.jpg

http://i.imgur.com/NEPJR.jpg
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Old 11-03-2011, 12:49 PM   #122
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Quote:
Originally Posted by civicseth View Post
I just did this today using the Time-Sert kit. I have 4 inserts left, and if anyone wants to buy it cheaper than they can new, let me know, and I'll ship it to you. I would recommend using a drill press, as it wasn't an easy task to drill out using a hand drill.

http://i.imgur.com/DDYGJ.jpg

http://i.imgur.com/NEPJR.jpg
What were the sizes of the timeserts you used for front and the rear brakes?
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Old 11-03-2011, 02:12 PM   #123
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I only did one of the fronts, not the rear.
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Old 11-03-2011, 02:45 PM   #124
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Quote:
Originally Posted by civicseth View Post
I only did one of the fronts, not the rear.
Can you share what size timesert worked for the front calipers?
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Old 11-03-2011, 03:53 PM   #125
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I have the kit you need for sale. It came with 5 inserts, but I only used one. It is the 12x1.5 kit. Let me know if you want it. It's just going to sit on the shelf and collect dust for years. I'd like to see it go to someone who needs it.


http://forums.nasioc.com/forums/show....php?t=2264726

Last edited by civicseth; 11-03-2011 at 06:28 PM.
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