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-   -   Heater core Hoses go where? <> top/bottom (https://67-72chevytrucks.com/vboard/showthread.php?t=596971)

johnnyclack 09-16-2013 02:00 PM

Heater core Hoses go where? <> top/bottom
 
Heater core Hoses go where? <> top/bottom :pty:

I pulled the heater core on my 79’ K-30 w/AC some time back. Now that I did not take any Pick’s which hose goes where..........


Thanks’ Fellows

dieseldawg142 09-16-2013 04:03 PM

Re: Heater core Hoses go where? <> top/bottom
 
top hose goes to rad. or water pump, bottom hose goes to intake

INSIDIOUS '86 09-16-2013 05:21 PM

Re: Heater core Hoses go where? <> top/bottom
 
You want it to flow up so it will blow out any air bubbles
Posted via Mobile Device

raceman6135 09-16-2013 06:10 PM

Re: Heater core Hoses go where? <> top/bottom
 
Another way to tell is that the inlet and outlet are different sizes: one is 5/8" and the other is 3/4". Match the heater core to the corresponding size nipples on engine/water pump/radiator and you're set.

johnnyclack 09-17-2013 06:36 AM

Re: Heater core Hoses go where? <> top/bottom
 
Quote:

Originally Posted by INSIDIOUS '86 (Post 6272269)
You want it to flow up so it will blow out any air bubbles
Posted via Mobile Device

Good tip; Thanks I was not aware of this fact :mm:

johnnyclack 09-17-2013 06:40 AM

Re: Heater core Hoses go where? <> top/bottom
 
Quote:

Originally Posted by raceman6135 (Post 6272343)
Another way to tell is that the inlet and outlet are different sizes: one is 5/8" and the other is 3/4". Match the heater core to the corresponding size nipples on engine/water pump/radiator and you're set.


If only life would remain this simple


The P/O has upgraded both hose’s & fittings to match ¾” . :waah:
Not sure the gain here, if any ?


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