The flow in the Mazda cooling circuit is from the water pump down the
sparkplug side, then back on the intake side. The heater hose 5/8” tube is at
the half way point on the flow path. The thinking is that more heat is added to
the fluid on the sparkplug side, and then the fluid cools a little bit coming
back down the intake side to keep the engine from ‘banana’ warping due to uneven
heating.
Where does the output of the water pump get plumbed to?
Bill
Schertz
KIS Cruiser #4045
N343BS
Phase one testing Completed
Sent: Saturday, October 27, 2012 8:57 AM
Subject: [FlyRotary]
Am I confused on
this coolong thing?
My radiator is 19 x
21 and mounted about 5 inches ahead of the firewall in the Aco 2 biplane.
I observed the about 5/8" tube protruding from the engine top just behind the
combustion chambers must be for carryingt very hot water to the automotive
heater core, instead of plugging it up I routed a hose to the radiator inlet.
Am thinking right on this? No flight yet but 4 minutes at 5500
ground running places the water temp at 209 degrees.....can't get the new 0 to
30 psi water pressure sender to work yet, always reads
0!
Thanks for your
comments,
Randy
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