Finn,
As they say, there’s more than one way to skin a cat. Actually, my system works pretty well, once I get the water pump primed. I have a small line going from the top corner of the radiator to the top of the purge tank. There is a line from the bottom of the purge tank that is Tee’d back into the pump inlet. Its purpose is to automatically bleed air from the system. So, once the coolant starts circulating, the rest of the process happens all by itself. All I have to do is keep enough coolant in the purge tank to cover the return fitting in the purge tank. There’s a float switch in the purge tank and coolant warning light on the panel to alert me of low coolant. And finally, there’s a coolant pressure sender connected to the EM-2 to warn of leaks. After 9.6 hrs it seems to be working as intended.
Mark S.
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Finn Lassen
Sent: Thursday, December 01, 2005 11:14 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Lack of progress report
Or you could go the cheap way. I used a windshield wiper bottle with built-in pump as my overflow bottle.
I routed the pump output via a small checkvalve to the water pump inlet. Worked pretty well.
Finn
Mark R Steitle wrote:
Bob,
While I do have a purge tank, I wouldn't mind having an EWP just to use for purging the air from the cooling system. We will be expecting a status report on the EWP when the time comes.
Mark S.
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bob White
Sent: Thursday, December 01, 2005 9:56 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Lack of progress report
Hi Mark,
Thanks for the reminder. I do have one advantage. Currently I'm
plumbed with the EWP. I can run the cooling system without starting
the engine and the pump is at the bottom of the system. I run the
pump, stop and add water 5 or 6 times before the system is filled.
Since I live in a relatively warm climate, I'm expecting this to be the
definitive test on EWP performance in an Airplane.
Bob W.
On Thu, 1 Dec 2005 07:21:10 -0600
"Mark R Steitle" <mark.steitle@austin.utexas.edu> wrote:
Bob,
You probably know this, but be sure to bleed the air out of the block before running the engine for the first time. That usually means removing the thermostat so the air can escape through the bypass circuit. It would be a shame to overheat a new engine due to low coolant. It has happened more than once, and almost happened to me.
Good luck,
Mark S.
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bob White
Sent: Wednesday, November 30, 2005 9:06 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Lack of progress report
Any of you who have read my signature would know that I was trying to
get my engine started by today at the latest. It didn't happen. I
have a long list of excuses, but I won't bore you with them. :)
I am still plodding along on the wiring. Once that's done, all that's
left is to tighten up some hoses, add fluids, do some system checks, and
give it a try.
From the land of mañana,
Bob W. (Sorry I'm not making some noise!)