Hi Tracy, I have both of those ports plugged and the smaller one
¼” is the one I was discussing with Lynn … I’ve seen some
installations where this is plumbed back into the water pump … my
expansion tank is plumbed from top of water pump outlet to bottom of the expansion
tank … see attached.
Should I run the rear iron ¼” hose directly to bottom of
expansion tank, or can this be done via the interconnection to water pump?
If direct, I’ll certainly not use the clear plastic hose.
Thanks … Jeff
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Tuesday, December 09, 2008 12:00 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Three more flights..........
Jeff, there are two ports on
the rear iron. Not sure which one you are talking about. One is on
the side (5/8" heater port which should be blocked ) and a smaller one on
the top which should go to your coolant expansion tank through a small diameter
hose. This is the primary point where the block purges air. If you
have this one blocked off, your coolant system is not configured as well as it
could be.
Tracy
On Tue, Dec 9, 2008 at 10:35 AM, Lynn Hanover <lehanover@gmail.com> wrote:
Lynn, there is an unused water
connection on my rear iron. At present I have a short hose on it and it's
plugged.
What about extending the hose a
bit and replacing the plug with a snifter valve, or keeping the plug and using
this hose as an auxiliary water filing point? It could easily be elevated to
the highest point in the system and used as an air burping point on the ground.
Any scheme at
all that bleeds off the trapped air is a good idea.