John,

    Its sounds like you have turbo rotor housings.  The turbo aluminum rotor
housings have coolant holes in the bottom (the NA rotors do not).  You
appear to be talking about the aluminum rotor housings and the turbo housing
do take O rings OR you can do like I did and plug them with freeze plugs I
got from Mazdatrix.

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message -----
From: "john" <frmrjohn@netonecom.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, January 21, 2004 5:55 PM
Subject: [FlyRotary] manifold


> Fellow Rotarys';  I wend out in the garage and dug out the crossover
> manifold to check the fit.  I purchased the engine from Dave and the ports
> are about 1-5/8" in the engine, and the manifold is approximately 2 1/4".
> Does any know what year the engine is?   One other question, what are the
> round holes in the rotor housings, between the intake ports.  There
appears
> to be some o-rings to install in these ports before the intake manifold is
> installed.  JohnD            Don't Archive
>
>
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