Anybody use these studs? They have self locking threads on one end. I plan to 
use 10mm self locking thread studs and the wedge lock washers when I put things 
back together. 

http://www.mcmaster.com/#self-locking-threaded-studs/=19k229

Driven on the street I never have a problem. lots of track duty and everything 
goes wrong. 

Bob


  ----- Original Message ----- 
  From: Bill Cardell 
  To: Emilio - 949Racing ; MiataPower 
  Sent: Wednesday, April 01, 2009 10:04 PM
  Subject: RE: loosening turbo to mani and turbo to d/p nuts


  We have had studs come out, mainly on track driven cars. I'd have to disagree 
about the stage 8s, though. They also address the stud coming out.

  TurboDog's Dad 
  Bill Cardell 
  www.flyinmiata.com 
  1-800-FLY-MX5S 
  970-464-5600 tech support 
  Don't miss our Summer Camp! August 6-9 





------------------------------------------------------------------------------
  From: [email protected] 
[mailto:[email protected]] On Behalf Of Emilio - 949Racing
  Sent: Wednesday, April 01, 2009 9:40 PM
  To: MiataPower
  Subject: Re: loosening turbo to mani and turbo to d/p nuts


  My experience has been that its more the studs backing out. So even, stage 
8's, Nordlocks, safety wire and what not doesn't always fix it. Someone at MRLS 
mentioned that FM may be switching to or optionally offering 10mm studs with 
their kits. The extra surface area does seem to make them stay put longer. 10m 
studs have been de rigueur for turbo Miatas that see a lot of track use  but  
its trickling down to street cars slower it seems. I haven't tried green, hi 
temp cylindrical bonding Loctite but that might help. Another fix might be 
staking them, but that may raise cracking issues with cast manifolds.

  Jason, you don't track your car do you? That's when stuff falls off :) I've 
seen daily driven turbo cars that have never had an an issue on the street, not 
make one session at the track before a stud or two backs out.

  But to answer your question yes, it's endemic for turbo track miatas.


    Emilio Cervantes
    www.949Racing.com
    26242 Dimension Dr #130
    Lake Forest, CA 92630
    949.716.3111 phone / fax


    On 2009-04-02 03:05, Jason C wrote: 
    > A lot of people seem to have this problem (though not me)....I want to 
understand why some do and some don't. Â  Some do despite the fancy serrated FM 
washers.Do FM see this problem?







------------------------------------------------------------------------------


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