Heater core to Radiator hose placement?

Topic: Heater core to Radiator hose placement? (Read 2114 times) previous topic - next topic

Heater core to Radiator hose placement?

September 18, 2005, 08:58:41 PM

Heater core to Radiator hose placement?

What is the proper hook up of the heater hoses from the back of the engine to the heater core?

Does it matter?

Mine was top hard line to left side and bottom hard line to right side.

I can’t seem to find a Pic of it in any of the heater core post or in any manuals.

I have new hose to go on (they need trimmed to fit) but do I am not sure if the hoses were right in the first place.

Re: Heater core to Radiator hose placement?

Reply #1 – September 19, 2005, 10:53:54 AM

Quote

I have new hose to go on (they need TO BE trimmed to fit) but do I am not sure if the hoses were right in the first place.

Your pic shows the right orientation of hoses. One is 3/4", the other 5/8"

Here's the list I made while looking for mine:

Supply (pipe2) to heater core
- 4 turns
- 3/4" x 11.6"
Ford............ E7SZ-18472-A (inc. restrictor)
Motorcraft...... KHM-121 (discontinued) KY-2 (flex 3/4)
ACDelco......... 14176S
Dayco........... 80411 * 2 + 80423 connector
Gates........... 19606 - Heater To Pipe-2, W/O ATC CtF {Molded}
Goodyear........ 63087/63037
NAPA............ NBH11606 ctf
Drive-rite......

Heater core to return (pipe1)
- 3 turns
- 5/8" * 12.5
Ford............ E6LY-18472-C
Motorcraft...... KH-195 / KY-1 (flex 5/8)
ACDelco......... 16030M
Dayco........... 80400 * 2 + 80422 connector
Gates........... 18705 - Heater To Pipe-1, CtF {Molded} (DAYCO xref = 87621)
Goodyear........ 63138
NAPA............ NBH10705 ctf
Drive-rite......

* * NOTES * *

The "restrictor" will be found shoved in one end of the 3/4" hose.
That end goes to the engine pipe.
The hose goes out, turns toward the driver's side, then loops up and around the 5/8" to clear it on the way to the core.

I don't know how Dayco expects two 90 degree turns and a straight connector to duplicate a 4-turn hose.

Some of the numbers don't exactly match other maker's cross-reference books (Goodyear).

Re: Heater core to Radiator hose placement?

Reply #2 – September 19, 2005, 11:52:41 AM

Thanks for the reply.
I love the lack of room, to me it looked like I could reverse the hose and they would fit better.
Now I know for sure.

Heater core to Radiator hose placement?

Reply #3 – February 20, 2006, 10:08:19 PM

Yes I will be the king of digging up old posts......

but I have a question.... How are the ATC cars different from what is posted above? I bought my T-bird with the heater core already bypassed, and there is a sensor in the middle of the hoses from the two pipes under the intake. Which hose do I leave the sensor in?

Thanks.

G.

Heater core to Radiator hose placement?

Reply #4 – February 20, 2006, 11:10:43 PM

The sensor (marked by the arrow) is in the bottom hose its basically an electronic thermostat. By setting the temp on the ATC module you set the sensor for a target operating voltage. When the heated fluid raises the voltage/temperature to the desired setting it then restricts flow to keep it at that setting. 90 degrees is full open all the time when in manual mode from what I understand.

Heater core to Radiator hose placement?

Reply #5 – February 20, 2006, 11:51:35 PM

Thanks Pauly, thats exactly what I needed to know...:D

Heater core to Radiator hose placement?

Reply #6 – February 21, 2006, 06:11:30 PM

Drivwfo,

I edited the top post just wanted to give you a heads up. It's the bottom hose.