Subject: Water pump connection
From: Rotary Engine
Date: 3/27/2007, 6:32 PM
To: AARotary Engine

        > One of the problems with the 13b water pump (cut down or not)
   is that
        > the intake and outflow from the pump do not head in a 'helpful'
        > directions to route coolant hoses if the radiator is mounted
       beneath the
        > engine.  I am not very satisfied with the solution I came up
   with the
        > first time around, so I am pondering some rework while I
       reinstall the
        > engine next weekend.
        >
        > First thought is to weld a 180 bend onto the pump as shown in the
        > figure.  This makes it relatively straight forward to add some
       hose + a
        > 90 degree bend to get to one side of the radiator.  But it does
       nothing
        > to help getting from the goofy 45-degree pump port to the other
       side of
        > the radiator.
        >
        > Anyone have a better idea how best to lay this out?
        >
        > Mark Supinski
        >
        > Here is what I have come up with but it requires a two pass rad.
        >
        > Paul Lamar ...No rotor no motor.

       What is a two pass rad?

       Doc Custer
       Retired Software Engineer and sometime Audiologist

       OK that is when the water goes down one side and comes
       back the other. Sometimes called a Sciroco type.
       Makes plumbing a lot easier.
       --
       Paul Lamar ...No rotor no motor.


   The stock radiator Tracy is currently flying is a 2-pass.  I had to
   have
   a couple of mods applied to it for my use - I milled off the radiator
   cap and welded it shut.  Also, for whatever reason the rad came with one
   port 1.5" and the other 2.0".  I had the large one milled off and a 1.5
   put in it's place.  But it's a nice rad, just tricky to mount.  If you
   come by, Doc that would be an area you could give me some suggestions,
   since this is the last remaining design area I have no workable plan
   for.

   Mark Supinski 719-651-3236

   I see what happened Mark. The neck is on the extreme left instead
   of in the middle. It helps if it is the middle. Not fatal however.


   --
   Paul Lamar ...No rotor no motor.


For those interested, I found a source online for prebent pipe with
aircraft experience.  Here's a link:

http://woolfaircraft.thomasnet.com/advanced/bent-elbows/bent-elbow?

Mark

How much money Mark?

Paul Lamar

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