Mailing List flyrotary@lancaironline.net Message #61000
From: David Leonard <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] flexplate / flywheel saga continued
Date: Tue, 20 May 2014 14:10:17 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Charlie,

My flywheel was exactly the same diameter, thought the teeth were closer to the engine a little.  I think there may be a difference between the turbo and non- turbo.  We hashed all that out a couple years ago.. its in the archives.  You can also check the Mazdatrix website to see the different models.

Good Luck,
David Leonard 


On Tue, May 20, 2014 at 12:25 PM, Charlie England <flyrotary@lancaironline.net> wrote:
Well, I recently bought a used aluminum flywheel with the following description:

Quote:
RX7 8.5Lb Fidanza Aluminum Flywheel for FB or FC
For sale is a 8.5lb Aluminum Fidanza Flywheel for a RX7 Non Turbo , its used and could use a new friction plate
fits 86-91 Non turbo RX7s might fit Fb 2nd gen RX7s as well i'm not 100% sure
Unquote.

It was reasonably priced, since I don't need the wear surface, so I figured it would be 'plan B' if I ever have an issue with the flex plate.

When it arrived (yesterday, after everyone was gone), I sat it on top of my (cracked) flex plate, and it's almost an inch smaller in diameter. The mounting holes in the center seem to line up properly. I remember reading about milling the drive plate to move the starter .2" closer to the engine, but I don't remember anything about the smaller diameter.

So, my questions:
Did I purchase the wrong item, would I simply make my starter cutout in the plate closer to the centerline to account for the smaller diameter, or was the flywheel mis-represented?

If it's not the described item, I need to send it back, but I don't want to bother the seller if I simply bought the wrong flywheel.

Thanks,

Charlie

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