|
|
Hi, Rusty...here is a picture of my water pump housing with the temp sensor
as well as a -6AN fitting I drilled and tapped into the housing. The red
line indicates where the water/coolant level was when I removed the
thermostat. The water was maybe 1/16" below the lip of the thermostat, and
followed that red line. The picture is deceiving, does not look level
because of the angle I took the picture at, but that red line is
representative of where the water level sat when I removed the thermostat. I
could actually see the sensor on the inside of the water pump casting, and
it was not submerged or covered by water. Hope this helps and/or makes
sense. Thanks again. Paul Conner
----- Original Message -----
From: "Russell Duffy" <13brv3@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, March 09, 2004 9:09 AM
Subject: [FlyRotary] Re: air pocket in cooling system
> Hi Paul,
>
> Can you post another pic of this thermostat housing area, with the temp
> sensor visible? Are you saying the stock temp sensor is above the
> thermostat? The water pump housings that I have, locate the temp sensor
> below the thermostat, which would be immersed in coolant if the level is
up
> to the bottom of the thermostat as you described. Is there any chance
this
> higher fitting you describe was originally a level sensor?
>
> As for air pockets, my rev-1 system had a pretty big loop of AN-16 hose
out
> of the top of the thermostat housing, that went all the way down to the
> radiator below the engine. That loop stayed full of air all the time. I
> figured that there wasn't enough flow to force the air pocket down the
long
> slope and into the radiator. It seems the hose was large enough to allow
> the water to flow along the bottom of the hose, and leave the air in the
> top. It didn't hurt anything, but it always bugged me.
>
> In rev-2, I did away with the air separator tank, and have only an
overflow
> bottle. The rad cap is mounted on the thermostat housing (no room for a
> thermostat though), so I can actually fill the engine without taking hoses
> off (another improvement from rev-1). I have the option of adding an
> aluminum, pressurized expansion tank in place of the plastic overflow tank
> if it proves necessary, but for now, I decided that simple is good.
>
> Cheers,
> Rusty (running again by the end of this week...really...don't laugh, it
> could happen)
>
>
> >> Homepage: http://www.flyrotary.com/
> >> Archive: http://lancaironline.net/lists/flyrotary/List.html
>
|
|