From: "Charlie England" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Flywheel or Spline modification
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Message-ID: <0b60675e-3676-de63-40ba-e0fef37eb616@gmail.com>
Date: Thu, 22 Jun 2017 20:43:05 -0500
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On 6/22/2017 7:13 PM, Mark McClure wrote:
> So with my inability to find a gen2 RX-7 flexplate I have ordered a lightweight steel Flywheel from RacingBeat.
>
> My thoughts are to have the 4 bolt holes machined in the flexplate or 6 holes in the spline and drill out the rivets to remove the damper plate.
>
>  From reading the archives it seems the spline directly mounted is what Tracy did for the RD-2C but that it's a different spline setup.
>
> Anyone done this? Am I better to continue searching for the auto flexplate?
>
> Mark
>
Mark,

I can't help you with the flywheel question, but if you want to find a 
flexplate, try
http://car-part.com/
(Don't forget that hyphen.)

I just searched for an '88 RX-7 flexplate; got dozens of hits.

I'd advise calling your shop of choice directly, & getting the guy to 
carefully inspect the one he has for sale prior to shipping. Explain 
that you've seen them cracked before, and that the cracks can sometimes 
be hard to see. The guy I bought from was very accommodating. Tell him 
what to look for: where cracks are likely to be. Flexplate cracking 
isn't an a/c-only issue; I've got one here that's cracked and has never 
been on a plane.

Charlie


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