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Message
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 would stick with plan A for plumbing the heater
core. As for the expansion tank, it doesn't need much
flow. As Lynn suggested, there should be a small line running
from the highest possible point in the system, to the upper fitting on the
tank. The bottom fitting will return to the engine on the suction side of
the system. I would look for a T fitting to return it to that same
lower water pump housing location that you'll be using for the heater
return. You can even T it into the heater return hose wherever
is convenient.
Cheers,
Rusty
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