Brembo caliper bolt stripped
#1
Brembo caliper bolt stripped
Like the title says, I was having my local shop put on my beautiful new Powerslot rotors and StopTech pads when they guy calls me to tell me that one of the two bolts that hold the right front caliper stripped out when trying to remove the caliper.
Is it possible to save somehow? I don't want to buy a new $500 caliper if this one can be saved...
Is it possible to save somehow? I don't want to buy a new $500 caliper if this one can be saved...
#3
So... Basically I need a caliper? I don't know what helicoil is... Is it some type of rerthreading? I don't like "should" when it comes to things like brakes.
Last edited by LogicWavelength; 03-21-2012 at 08:29 PM.
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4drturbo (11-01-2022)
#4
the overexplainer
the shop should know what it is. Basically the hole is bored out and a helicoil is put in. the helicoil provides threads for the caliper.
Search more next time: https://acurazine.com/forums/3g-tl-problems-fixes-114/brembo-stripped-caliper-thread-724300/
also these bolts experience a shearing force, not a twisting force. the bolt wont loosen over time.
in the thread linked there's a company that does remanufactured if you want to go that route. Alternatively, time-sert.
Search more next time: https://acurazine.com/forums/3g-tl-problems-fixes-114/brembo-stripped-caliper-thread-724300/
also these bolts experience a shearing force, not a twisting force. the bolt wont loosen over time.
in the thread linked there's a company that does remanufactured if you want to go that route. Alternatively, time-sert.
Last edited by ez12a; 03-21-2012 at 09:08 PM.
#5
the shop should know what it is. Basically the hole is bored out and a helicoil is put in. the helicoil provides threads for the caliper.
Search more next time: https://acurazine.com/forums/showthread.php?t=724300
also these bolts experience a shearing force, not a twisting force. the bolt wont loosen over time.
in the thread linked there's a company that does remanufactured if you want to go that route. Alternatively, time-sert.
Search more next time: https://acurazine.com/forums/showthread.php?t=724300
also these bolts experience a shearing force, not a twisting force. the bolt wont loosen over time.
in the thread linked there's a company that does remanufactured if you want to go that route. Alternatively, time-sert.
#6
Racer
The Heli-Coil threads are made of very good air craft quality steel, the threads in the caliper are only as good as the caliper casting, I'd go heli coil every time.
(old retired machinist, 40 yrs. experience.)
(old retired machinist, 40 yrs. experience.)
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JJH (07-05-2013)
#7
I got the new caliper installed. I have nothing but good to say about the XLR8/Acurazine brake package. Stops hard, responds well to modulation, initial bite is good if not better than before.
I have one problem... I don't have enough posts to sell my old caliper if someone wanted it!
I have one problem... I don't have enough posts to sell my old caliper if someone wanted it!
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#8
Intermediate
I did the same thing. Its because your mechanic used air tools on it and stripped it to all hell.
Just go to the hardware store, buy a larger diameter bolt and a tap that has a matching thread patter and re-drill the hole. It will save you $500.
Helicoil is garbage.
Just go to the hardware store, buy a larger diameter bolt and a tap that has a matching thread patter and re-drill the hole. It will save you $500.
Helicoil is garbage.
#10
AZ Community Team
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#13
Instructor
Can someone please answer this question? I'm preparing to do my brake job and I want to have my basis covered as it seems like I'm going to need to have this done. Thanks.
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#15
Instructor
#16
just measure the thickness of the caliper. I believe it's the standard 21mm for the helicoil springs. you need a special oversized tap to get the existing hole bigger to fit a helicoil or timesert. I ended up taking mine to machine shop and did all 4 holes for $100. Custom steel inserts made on a lathe. The kit itself costs around $60 but if you got the tools (drill press, necessary tap and tool) to do it then go ahead. You can salvage the bolts. It's the aluminum from the caliper that gets stripped not the steel bolt. Run a m14x1.5 die over the bolts and you will be good.
Last edited by blkmz3; 07-05-2013 at 12:43 PM.
#18
Pro
Use Timeserts not helicoils. Helicoils aren't as strong. A Timesert is pretty much a sleeve that's screwed into a new set of threads that you create in the stripped hole and has a groove that allows the insert to "lock" into place. Good thing to have because its also the same thread pitch as your oil pan drain plug.
#20
Instructor
Yes, definitely going with timeserts. The kit is about $140 shipped to canada, while I found a local shop who can do 4 holes for $80.
I'm just going to pull the brembos off and see what happens. Worst case I'll timesert all 4 for $80.
The shop said they'd charge me double if they were to mount it on the mill and make "perfect" holes. I'm thinking mounted + hand drill is probably sufficient as long as progressively larger drill bits are used to drill the hole. Thoughts?
I'm just going to pull the brembos off and see what happens. Worst case I'll timesert all 4 for $80.
The shop said they'd charge me double if they were to mount it on the mill and make "perfect" holes. I'm thinking mounted + hand drill is probably sufficient as long as progressively larger drill bits are used to drill the hole. Thoughts?
#22
Pro
I have been told 14.25 , 14.5 and 9/16
I am doing the helicoil in the shop so I want to make sure its right
#23
The DVD-A Script Guy
For example here's the TimeSert info for metric but not sure what inserts you have.
http://www.timesert.com/html/engineeringdataM.html
#24
Thanks. I've had 3 out of 4 work. Passenger side bottom. Took buddy and I 3 hrs of manual labor to get it off! Wow!!
So, helicoil? What's the timeserts? Can I do it or do I need a good shop?
So, helicoil? What's the timeserts? Can I do it or do I need a good shop?
#29
Race Director
#30
Pro
Nope was removed by hand. This isn't the first time we have had this same issue with brembo calipers stripping honestly. We have had the same happen with GT500's, STI's and any other car with a steel bolt threaded into aluminum and then torqued down. Its sad that these brakes didn't come from the factory with inserts the way they should have. Harley Davidson learned long ago about not to thread aluminum but instead use inserts to save the customers from troubles.
#31
Race Director
Nope was removed by hand. This isn't the first time we have had this same issue with brembo calipers stripping honestly. We have had the same happen with GT500's, STI's and any other car with a steel bolt threaded into aluminum and then torqued down. Its sad that these brakes didn't come from the factory with inserts the way they should have. Harley Davidson learned long ago about not to thread aluminum but instead use inserts to save the customers from troubles.
#32
Pro
Removal. The big issue is that the brakes cycle temperatures fluctuate so much that using 2 metals with completely different heat cycles is asking for trouble. So after fixing the threads I went ahead and tossed some anti-sieze to help in the future. I have always been really happy with hondas quality but they really let me down on this one but like I said its not just honda that does it.
#33
This is quoted from http://www.noblefix.com/HeliCoil-Aerospace.html
Vibration isn't an issue either....
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justnspace (03-19-2014)
#36
Removal. The big issue is that the brakes cycle temperatures fluctuate so much that using 2 metals with completely different heat cycles is asking for trouble. So after fixing the threads I went ahead and tossed some anti-sieze to help in the future. I have always been really happy with hondas quality but they really let me down on this one but like I said its not just honda that does it.
#37
Head a da Family
Join Date: Jul 2003
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When the bleeder valve freezes up and strips when trying getting it out of the caliper, you have to replace the whole caliper, that is, unless Helicoil has fixes for stripped bleeder valves. Rockauto has remanufactured black Brembo calipers (NUGEN) for the '04/5/6 M/T and '07/8 Type-S. for about $75 each, net. I have them and they seem pretty good. No issues.
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#38
When the bleeder valve freezes up and strips when trying getting it out of the caliper, you have to replace the whole caliper, that is, unless Helicoil has fixes for stripped bleeder valves. Rockauto has remanufactured black Brembo calipers (NUGEN) for the '04/5/6 M/T and '07/8 Type-S. for about $75 each, net. I have them and they seem pretty good. No issues.
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