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Möbius build 3.0 : Crash testing Miatas like he works for the NHTSA

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Old 06-07-2017, 03:38 PM
  #121  
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Clutch bang.
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Old 06-07-2017, 03:40 PM
  #122  
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Was the free play and total travel adjusted properly?
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Old 06-07-2017, 04:01 PM
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Exactly as described. BANG noise and no more drive.
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Old 06-07-2017, 04:02 PM
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Thats no bueno. Send the family on vacation and get that trans dropped. We have track time tomorrow.
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Old 06-07-2017, 04:25 PM
  #125  
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Hah.
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Old 06-09-2017, 07:33 PM
  #126  
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Ok. So there's good news and there's bad news.

I took the trans off, because that's easy and quick and fun. With the transmission in 4th gear, spinning the input shaft spun the output shaft. So transmission was not obviously broken.

There was no shrapnel in the bellhousing. Fork arm appeared fine, no bends, moved appropriately.

There was nothing immediately apparent to the naked eye with the clutch that was wrong. I took a clutch alignment tool and put it in there and tried to spin things. Things wouldn't spin. Everything looked fine.

Curly suggests I check the diff, so I check the diff, and the diff doesn't check. Diff is toast. Toast as in I can apply the ebrake, and the input flange freely spins. Da fuq? I blow up a Torsen leaving a stoplight?

Cts-V, OS-Giken, or another 3.9 Torsen, what say ye?
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Old 06-09-2017, 07:37 PM
  #127  
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TorsenI/II or Tochigi Fuji Super LSD?

This is much sadness, but fairly easy to diagnose, as you did, and there are plenty of options, as you said.

Still sucks though. Sorry man. Another 3.9 Torsen is probably the EZ button.
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Old 06-09-2017, 07:45 PM
  #128  
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Assuming it was the diff that shipped oem with the car, it was a 2001 Type II Torsen.
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Old 06-09-2017, 07:55 PM
  #129  
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Well OS-Giken was on the list anyway, just way way down the list. Good thing about lists, they can be re-prioritized. Giken it is.
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Old 06-09-2017, 07:56 PM
  #130  
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Might as well add a 3.63. You know, while you are in there.
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Old 06-09-2017, 07:57 PM
  #131  
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Mazda shipped my tapered front hubs yesterday too, so that's good news.
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Old 06-09-2017, 07:58 PM
  #132  
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Originally Posted by EO2K
Might as well add a 3.63. You know, while you are in there.
Hmm maybe. I will have to look at the BMW trans ratios to see what I want, as that's also on the list. Now beneath the differential.
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Old 06-09-2017, 07:58 PM
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Where are the photos of the carnage?

--Ian
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Old 06-09-2017, 08:02 PM
  #134  
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If doing BMW trans then you probably want to head down the getrag route. Or Ford 8.8
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Old 06-09-2017, 08:04 PM
  #135  
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You will not miss the Torsen after going clutch type.
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Old 06-09-2017, 08:06 PM
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The carnage is in the diff, and I'm out of time today.
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Old 06-09-2017, 08:08 PM
  #137  
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We will open it tomorrow.
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Old 06-09-2017, 09:04 PM
  #138  
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That sounds like a threat.
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Old 06-10-2017, 12:52 AM
  #139  
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It just occurred to me to wonder from which magical pot of gold I was going to fund an os giken with.

The extent of what exactly I need shall be revealed tomorrow.
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Old 06-10-2017, 01:27 AM
  #140  
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I have a OSGiken sitting in a complete 4.3 assembly that has just sat around for years. Interested?
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