heater hose hook up? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

D1S13 · 03-06-2008, 08:18 AM

the lines for my heater core are currently recirculated on my s13

want to hook them to the heater core, but need to know which hose goes to the top and which to the bottom.

searching all morning w/no luck

thx for help

chituntang · 03-06-2008, 08:24 AM

Does not really matter from what I heard and what I did on mine

D1S13 · 03-06-2008, 08:26 AM

Quote:

Originally Posted by chituntang

Does not really matter from what I heard and what I did on mine

doesn't matter which way the coolant flows???

g6civcx · 03-06-2008, 08:59 AM

Quote:

Originally Posted by chituntang

Does not really matter from what I heard and what I did on mine

You want the inlet to the heater core to be the line regulated by the temperature control rod.

As for coolant circulation in the block, check the FSM for direction of coolant circulation as controlled by the water pump.

D1S13 · 03-06-2008, 09:21 AM

Quote:

Originally Posted by g6civcx

You want the inlet to the heater core to be the line regulated by the temperature control rod.

As for coolant circulation in the block, check the FSM for direction of coolant circulation as controlled by the water pump.

found the line regulated by the temperature control rod, now is the inlet of the heater core the bottom spout??? or the top?

Monooxide · 03-06-2008, 10:58 AM

Bottom = In
Top = Out.

I had to look it up on my install.

D1S13 · 03-06-2008, 12:40 PM

Quote:

Originally Posted by Monooxide

Bottom = In
Top = Out.

I had to look it up on my install.

thank you guys

chituntang · 03-06-2008, 12:52 PM

Quote:

Originally Posted by g6civcx

You want the inlet to the heater core to be the line regulated by the temperature control rod.

As for coolant circulation in the block, check the FSM for direction of coolant circulation as controlled by the water pump.

Well, the thing is that if you pull the lever to cold, the coolant within the heater core will be stuck and you it will not exchange heat from the engine anymore since coolant from engine is not getting in. So it really does not matter.

03-06-2008, 08:18 AM	#1
D1S13 Zilvia Addict Join Date: May 2007 Location: phx Posts: 830 Trader Rating: (9) Feedback Score: 9 reviews	heater hose hook up? the lines for my heater core are currently recirculated on my s13 want to hook them to the heater core, but need to know which hose goes to the top and which to the bottom. searching all morning w/no luck thx for help __________________ www.teamtopflight.blogspot.com

03-06-2008, 08:24 AM	#2
chituntang Zilvia Junkie Join Date: Sep 2005 Location: ATL Age: 38 Posts: 505 Trader Rating: (13) Feedback Score: 13 reviews	Does not really matter from what I heard and what I did on mine

03-06-2008, 10:58 AM	#6
Monooxide Zilvia Addict Join Date: Mar 2005 Location: Farmington/Flint, MI Age: 37 Posts: 675 Trader Rating: (8) Feedback Score: 8 reviews	Bottom = In Top = Out. I had to look it up on my install.