Paul,
        I'm just starting the disassembly / inspection of my 20B for
   the purpose
        of an aircraft conversion.  The thing that seems to be worrying
   me the
        most is the water pump.  That thing is huge, or at least it
   sticks up in
        the air a mile over the top of the engine block.  And....the
   pump is
        cast iron in an aluminum housing....very heavy!!  Is there some way
        to modify, or preferably another pump that will mount in its
   place that
        will solve these issues?  This thing will NEVER go inside the
   engine
        cowl?

        Thanks again!!
        Don Mitchell

        No problem. Not to worry.
        I'll give you a step by step on how to cut it down with pictures. I
        did one for Bulent and his is working and cooling fine. Later
   today.


        Paul Lamar ...No rotor no motor.


   Thanks Paul,
   That would be VERY helpful !!
   Is there a feasible external water pump that would be lighter?
   Don

   --------------------------------------------------
   Unfortunately not that I know of. Most do not have the
   flow requirements.

   You don't have to do it this way but this gives the best flow
   rate.


   Paul Lamar ...No rotor no motor.


One more question Paul:
Do I just run without a thermostat after the water pump modification?
Thanks again!!
Don Mitchell

Yes you do. Cowl flaps are the best way to control the eng. temp.
as they can add 5 or 10 MPH to he top speed.

Cowl flaps add 3 to 4 mph to the top and cruise speed of my C182
at only around 150 MPH. More when you get up in the 200 MPH range.

Paul Lamar ...No rotor no motor.

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