Subject: Adapting Tracy's box to Mazda bell housing
From: Rotary Engine
Date: 12/1/2005, 9:50 AM
To: AA-me


> It might be possible to to adapt Tracy's box to a stock
> Mazda auto tranny bell housing. No longer input shaft
> required. Reduction section is partially inside the bell housing.
> Also the prop flange will still be the standard 14 inches from the
> engine end housing.
> > The idea here is to machine about 1/2 inch off the main casting
> and sandwich the 1/2 inch adapter plate between Tracy's spacer and
> the main casting. Will only work with the 2.85:1 box as the ring gear
> is stationary and not the planet carrier. A new internal end cap must
> be made for the sun gear thrust bearing and input shaft oil seal.
> > ------------------------------------------------------------
> > This will work fine with the stock 2nd gen manual transmission bell housing.
> The input shaft will come out to almost exactly the right length.
> You will have to cut a 6.625" diameter hole in the front face
> of the bell housing to allow Tracy spacer to fit through.
> the 1/2 inch thick adpater plate will need only four bolts
> to hold it to the bell housing.
> > This is so easy to do I wonder why I did not think of it years
> ago. Tracy should build all of them like this. It is a 1000%
> improvment in the cosmetics.
> > Paul Lamar ...No rotor no motor.
>
Paul

Yes,  with a little work on the housing of the redrive you could insert the
and attach the whole redrive from the inside the bell housing.

Doug in Japan


I like this idea. Who can do this for us? I have the bellhousings.....and like the idea. How does the flange capture Tracy's case and prevent slippage? How about welding the case to the bellhousing somehow-Ed Kleppis?
Marc Wiese


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