Stoptech SS brake lines manufacture defect, WARNING
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04-03-2012, 03:43 PM
#2
To all prospective buyers of Stoptech Stainless Steel brake lines.
I purchased the OEM non-brembo kit for a 350Z enthusiast model from R1 Concepts in California(also bought their rotors which seem very nice, straight vane slotted premium, hawk hps pads, and ATE super blue).
After installing I noticed a leak from my front left banjo bolt where the bolt meets the first washer.
After calling stoptech technical support a couple times(who were actually extremely helpful and know their stuff), I came to the conclusion that I had two manufacturer defects with my kit.
First, the screw that goes through the banjo bolt had large indents/scores where the bolt meets the first washer. This was the major cause of the leak.
Second, one of the washers had a fairly large dent on the side, which I assume was also messing up the contact surface.
They said I could re-use the OEM bolts but I opted to go to Nissan and get a new bolt and two washers for about $7-$8, which they said was a miracle they even had them.
Please do yourself a favor, and inspect all stoptech flat surface parts before installing.
I don't want anyone dying out there from catastrophic brake failure.
Good day.
I purchased the OEM non-brembo kit for a 350Z enthusiast model from R1 Concepts in California(also bought their rotors which seem very nice, straight vane slotted premium, hawk hps pads, and ATE super blue).
After installing I noticed a leak from my front left banjo bolt where the bolt meets the first washer.
After calling stoptech technical support a couple times(who were actually extremely helpful and know their stuff), I came to the conclusion that I had two manufacturer defects with my kit.
First, the screw that goes through the banjo bolt had large indents/scores where the bolt meets the first washer. This was the major cause of the leak.
Second, one of the washers had a fairly large dent on the side, which I assume was also messing up the contact surface.
They said I could re-use the OEM bolts but I opted to go to Nissan and get a new bolt and two washers for about $7-$8, which they said was a miracle they even had them.
Please do yourself a favor, and inspect all stoptech flat surface parts before installing.
I don't want anyone dying out there from catastrophic brake failure.
Good day.
The area of the banjo connection is critical and most of the time it's the washers. In most cases, the leaks are caused by INSTALL errors...over tightening (or not tightening enough). You can also damage/strip the bolt itself if you're not careful. Not saying in your case, but the fact you found TWO different *defects* leads me to believe you may have damaged the bolt and washer. I assume you didn't see these *dents* when you took them out of the kit?
BTW..I just installed my Stoptech BB (fronts) today and they were PERFECT in every way.
04-04-2012, 04:01 AM
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The lines themselves are NOT defective
The area of the banjo connection is critical and most of the time it's the washers. In most cases, the leaks are caused by INSTALL errors...over tightening (or not tightening enough). You can also damage/strip the bolt itself if you're not careful. Not saying in your case, but the fact you found TWO different *defects* leads me to believe you may have damaged the bolt and washer. I assume you didn't see these *dents* when you took them out of the kit?
BTW..I just installed my Stoptech BB (fronts) today and they were PERFECT in every way.
The area of the banjo connection is critical and most of the time it's the washers. In most cases, the leaks are caused by INSTALL errors...over tightening (or not tightening enough). You can also damage/strip the bolt itself if you're not careful. Not saying in your case, but the fact you found TWO different *defects* leads me to believe you may have damaged the bolt and washer. I assume you didn't see these *dents* when you took them out of the kit?
BTW..I just installed my Stoptech BB (fronts) today and they were PERFECT in every way.
The lines themselves were not defective, but the hardware should be inspected too on such a critical component of the car.
There is no way I could have possibly damaged the bolt or the washer
Added pics to original post.
I did notice the dent in the washer, but as it was seemingly completely flat I didn't know if it would make a difference. I didn't notice the scores in the bolt, however. Never had a bolt that looked like this before.
Last edited by gzrecoil; 04-04-2012 at 04:18 AM.
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04-04-2012, 02:30 PM
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Looking att he pics of the bolts and knowling that is it a copper crush washer. No need for new hardware, perfectly fine.
04-04-2012, 05:56 PM
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You guys are out of your mind.
I guess you are missing the large scores in the bolt head. There is no way I could have done that during install.
You know why? It's because it did not happen during the install.
I'd like to see you get a bolt with those deep indentations in the flat surface not to leak, it makes me think you guys are the ones who don't know how to install stainless lines, LMFAO. This is not my first install, but it will be my last post on this sorry *** sad excuse of a website.
Go ahead, keep your heads up your asses, **** this place. Peace
I guess you are missing the large scores in the bolt head. There is no way I could have done that during install.
You know why? It's because it did not happen during the install.
I'd like to see you get a bolt with those deep indentations in the flat surface not to leak, it makes me think you guys are the ones who don't know how to install stainless lines, LMFAO. This is not my first install, but it will be my last post on this sorry *** sad excuse of a website.
Go ahead, keep your heads up your asses, **** this place. Peace
Last edited by gzrecoil; 04-04-2012 at 05:58 PM.
04-04-2012, 07:26 PM
#12
You guys are out of your mind.
I guess you are missing the large scores in the bolt head. There is no way I could have done that during install.
You know why? It's because it did not happen during the install.
I'd like to see you get a bolt with those deep indentations in the flat surface not to leak, it makes me think you guys are the ones who don't know how to install stainless lines, LMFAO. This is not my first install, but it will be my last post on this sorry *** sad excuse of a website.
Go ahead, keep your heads up your asses, **** this place. Peace
I guess you are missing the large scores in the bolt head. There is no way I could have done that during install.
You know why? It's because it did not happen during the install.
I'd like to see you get a bolt with those deep indentations in the flat surface not to leak, it makes me think you guys are the ones who don't know how to install stainless lines, LMFAO. This is not my first install, but it will be my last post on this sorry *** sad excuse of a website.
Go ahead, keep your heads up your asses, **** this place. Peace
Washers are made to *crush* and basically form a *gasket* seal of sorts. Even imperfections under the head of the bolt itself shouldn't be a problem, since the seal is formed against the BANJO interface on both sides. If you had a problem with the surfaces of the BANJO itself, then that could pose a potential problem.
04-04-2012, 10:26 PM
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Doesn't matter whether there is a crush washer or not.
Obviously you did not read the post either, one of the washers stoptech sent had a nick in the side which also was most likely causing an imperfect seal.
It's ok ronn1, stupidity is contagious, and when you don't listen to a manufacturer telling you they sent you a defective bolt and carry on with your ridiculous ******** you will die from overlooking something like this.
When I went to zdayz a couple years back I would have never guessed my350z.com was filled was such douches, I don't visit this site, but it seemed the largest, and I came to give you guys a heads up. As someone pointed out above, they have a scored bolt too.
Guess what you dumb ****, the bolt and the washer were the problem. I re-used an old washer with no scores and it still leaked so I narrowed it down to the bolt head before replacing everything. I bought a new bolt and washers from Nissan and no leak.
Last edited by gzrecoil; 04-04-2012 at 10:36 PM.
04-04-2012, 10:28 PM
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This isn't *rocket science*..I just put on a complete Stoptech Big Brake on my Z YESTERDAY
Washers are made to *crush* and basically form a *gasket* seal of sorts. Even imperfections under the head of the bolt itself shouldn't be a problem, since the seal is formed against the BANJO interface on both sides. If you had a problem with the surfaces of the BANJO itself, then that could pose a potential problem.
Washers are made to *crush* and basically form a *gasket* seal of sorts. Even imperfections under the head of the bolt itself shouldn't be a problem, since the seal is formed against the BANJO interface on both sides. If you had a problem with the surfaces of the BANJO itself, then that could pose a potential problem.
See, the problem is I care too much.
I didn't want to post again, but I couldn't stand for a good guy to die because a douche like you is full of themselves.
and in my experience it wasn't a 9/16" open end wrench, it was a 14mm wrench.
Last edited by gzrecoil; 04-04-2012 at 10:43 PM.
04-05-2012, 07:32 AM
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A nick in the side of a crush washer won't cause a leak either. Stop tech probably told you what you wanted to hear to shut you up and get you off the phone.
04-05-2012, 08:24 AM
#20
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Dude, calm down and don't assume people on here don't know how to wrench, did you torque the bolt to spec? I'm going to put those lines on and make a video, I will post it later. That is useful diagnostic method and not guessing and flipping out and making an *** out of yourself whether you are right or wrong.
ASE Status Letter
April 05, 2012
Rochells, Damien
Oakland, California 94605
ASE ID # ASE-1522-8898
Current ASE Designations
Automobile Technician
Advanced Level Specialist
ASE Certification Details
Test Description Expiration Date Status
A1 Engine Repair 12/31/2015 Current
A4 Suspension & Steering 12/31/2015 Current
A5 Brakes 12/31/2015 Current
A6 Electrical/Electronic Systems 6/30/2015 Current
A8 Engine Performance 6/30/2015 Current
L1 Automobile Advanced Engine Performance 12/31/2015 Current
ASE Status Letter
April 05, 2012
Rochells, Damien
Oakland, California 94605
ASE ID # ASE-1522-8898
Current ASE Designations
Automobile Technician
Advanced Level Specialist
ASE Certification Details
Test Description Expiration Date Status
A1 Engine Repair 12/31/2015 Current
A4 Suspension & Steering 12/31/2015 Current
A5 Brakes 12/31/2015 Current
A6 Electrical/Electronic Systems 6/30/2015 Current
A8 Engine Performance 6/30/2015 Current
L1 Automobile Advanced Engine Performance 12/31/2015 Current