![]() 11/20/2019 at 10:30 • Filed to: None | ![]() | ![]() |
Carbon fiber driveshaft from an AMG GT that is. In for a campaign to check the shaft because the bonding between the carbon fiber and steel flanges can come apart resulting in a loss of motive force. This one is fine, but the serial number puts it in the affected range, so it must be replaced. I’ve had torque tubes out a number of times, but never taken the driveshaft out of one. The close one is the new one. It's actually quite a bit beefier, though both are quite light, I want to say 4 pounds but I could be wrong, maybe slightly higher.
![]() 11/20/2019 at 10:33 |
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Big black shaft.
![]() 11/20/2019 at 10:38 |
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have you seen one broken yet? it is quite a lovely sight.
![]() 11/20/2019 at 10:39 |
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Wh ere’s the NSFW tag??
![]() 11/20/2019 at 10:40 |
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Frankenstein: For the experiment to be a success, all of the car’s
parts must be enlarged.
Inga: Its
fuel system
, its tires
, its suspension
, its engine
vould all have to be increased in size.
Frankenstein: Exactly.
Inga: It
vould have an enormous schwanzstucker.
Frankenstein: That goes without saying.
Inga: Voof.
![]() 11/20/2019 at 10:45 |
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I know bonding is quite common but it has to be done right to have good reliability. Back in the 90's trek carbon fiber bikes were bonded and lugged, those things had a very high failure rate, like 50% or more.
![]() 11/20/2019 at 10:52 |
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Why does the input(?) shaft on the left seem different on the two? A coupling of some sort need to be switched over?
![]() 11/20/2019 at 10:57 |
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Four pounds? Damn!
11/20/2019 at 11:12 |
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![]() 11/20/2019 at 11:58 |
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This was just a bad run. I don’t know of any actual failures, but we tend to be extremely cautious with things like this. It's only 16-17 model years, less than 1000 vehicles affected worldwide.
![]() 11/20/2019 at 11:59 |
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Yeah. It's called a compensating ring. I just haven't moved it over yet.
![]() 11/20/2019 at 11:59 |
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Nope. Never even heard of it happening.
![]() 11/20/2019 at 12:10 |
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Saw one, only one,
from extreme abuse, thing only had 6800 miles on it. He was on his fourth set of tires. That GT did not lead a good life :(
![]() 11/20/2019 at 12:42 |
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I wonder if it was in this range of bad ones. I had a GT with 30k miles of nothing but exotic track rental time in Vegas. And the only people working on it were maybe slightly better than the average jiffy lube employee. But it never had any catastrophic failures; most of its issues were caused by those maintaining it.
![]() 11/20/2019 at 13:09 |
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Sounds like a performance car being used properly.
![]() 11/20/2019 at 15:15 |
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So what does it take to “ bond ” the carbon fiber to steel, anyway? S ome kind of epoxy? Is there any crimp ing involved?
![]() 11/20/2019 at 15:28 |
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good question. My guess is special epoxy, no crimping.
![]() 11/20/2019 at 17:42 |
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I think mine’s longer...
![]() 11/20/2019 at 21:24 |
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Maybe! I’d put mine at about 6 feet. That's at least average, right!?