OK....I
know the two -16 AN fittings on the radiator will go to the top and bottom
large inlet/outlets on the waterpump. That's when the water gets
muddy....where might I make the connections for the expansion tank so that I
can put water into this thing? I need to furnish a little more
information. I am also planning on installing a heater core/fan
combination in the cockpit for heat. I found that there is a 5/8"
barbed heater core nipple underneath the oil filter. I had originally figured
on using that to go to the heater core. There is another area for a fitting on
the water pump. It is an angled fitting right next to the very bottom of the
water pump where the large -16 hose will connect. See area labeled
"connection 2" on the picture of the water pump. I had planned
on using that for the other connection to the heater core. Finally, there
is also another plug on the water pump labeled "connection 1" in the
same picture. I have no idea what that is/was for. Any suggestions on how
to incorporate a heater core and this expansion tank into my
system? I planned on installing the expansion tank at the very
top of the firewall, above the engine. Any and all suggestions are
welcome and very much appreciated. Sorry for all the questions....I would
much rather learn from "those that have gone before" than to make my
own expensive and time-consuming mistakes. Maybe I'll do it right
the first time? Thanks again for all of your assistance. Paul
Conner
Paul;
Don’t know exactly what your
installation looks like, but I’d suggest this: Installing tank at top of
firewall is good. Connect a line from the bottom of the tank to the line
returning from the rad to the inlet side of the pump. You can get a ½ NPT to
5/8 barbed adapter. You will need an air bleed at the top of the engine,
perhaps at the pump outlet line. The fitting on the side of the tank is for
air bleed from wherever else air is going to get trapped, probably at the your
radiator. Use a small diameter line (I used a 3/16” al tube and AN
fittings). If there is nowhere else for air to get trapped, you could probably
plumb the bleed line from the air bleed at the pump outlet.
Use the barb fitting below the oil
filter for feed to your heater core; return to the fitting at the bottom of the
pump (inlet side).
Al