----- Original Message -----
From: "Neil A. Kruiswyk" <neilak@rogers.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, October 17, 2002 10:02 PM
Subject: [FlyRotary] Re: EWP adapter pics


>
> Either Ed is asleep or I am.  The 5/8" recirc hole is in the water pump
> body.  Todd's super-looking adapter replaces the water pump body so the
> hole goes bye-bye.  Since the EWP is temperature regulated, why would
> you add a bypass hole?
>
> Neil K.
>
> ZZZZZZ
>
>
>
> Ed wrote...
>   I do have a question.  If you recall -the stock Mazda water pump has a
> 5/8" dia hole for recirulating water through the engine while the
> thermostat
> is still closed.  Once the coolant heats up, the thermostat opens and
> also
> "plugs" this 5/8" hole.  Racing Beat (amongst others) state that if you
> do
> not use a thermostat and fail to plug this hole you can loss 20% of your
> cooling effectivness.  So the question is do you plug this hole or not?
>
> Ed Anderson
>
 
Duh! What can I say?  

Ed.