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Old 12-11-2023, 05:39 PM   #1
SIM1
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Question Are these heater core hoses the right way around??
Hi,

I have been working on the cooling system on my 2006 ZC 3.0L V6 Ford Escape using the workshop manuals posted in the tech docs (thanks Russ!).

While doing so I noticed the diagram of the heater core inlet and outlet hoses looked like they might be installed the wrong way around. I've swapped them over but I want to be sure I haven't done something dumb. Links to photos of current configuration and screenshot of diagram from workshop manual https://fordforums.com.au/wsmpub/zcesc68/07-07.html included.










https://www.amazon.com.au/photos/sha...jY9vV5253A57iA

https://www.amazon.com.au/photos/sha...ZogwEymjTesaxL

https://www.amazon.com.au/photos/sha...v7ZiyzmiVnjul4
Last edited by SIM1; 12-11-2023 at 05:54 PM. Reason: LINKS TO PHOTOS
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Old 12-11-2023, 05:41 PM   #2
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Default Re: Are these heater core hoses the right way around??



I've tried to post photos but they haven't appeared on the post as far as I can tell.

I've posted links to the pics on an offsite hosting platform (Amazon prime)
Last edited by SIM1; 12-11-2023 at 05:55 PM. Reason: photos not appearing??
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Old 12-11-2023, 05:56 PM   #3
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Default Re: Are these heater core hoses the right way around??
Photos you can see clicking on the links, your hoses look ok to me.
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Old 12-11-2023, 06:43 PM   #4
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Default Re: Are these heater core hoses the right way around??
Quote:
Originally Posted by SIM1 View Post
image
image

I've tried to post photos but they haven't appeared on the post as far as I can tell.

I've posted links to the pics on an offsite hosting platform (Amazon prime)
Have a read through this. Most guys find it very easy to use.
https://www.fordforums.com.au/showthread.php?t=11482048
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Old 12-11-2023, 07:13 PM   #5
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Default Re: Are these heater core hoses the right way around??
[IMG][/IMG]

[IMG][/IMG]

[IMG][/IMG]
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Old 12-11-2023, 09:45 PM   #6
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Default Re: Are these heater core hoses the right way around??
it will work without the [IMG] & [/IMG] tags. all you need do is copy the hotlinks for forums tag line [or what ever ya wanna call it] and then post it as per below. -




otherwise your posting worked well.
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Old 13-11-2023, 09:55 AM   #7
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Default Re: Are these heater core hoses the right way around??
If theyre not rubbing on anything..... whats the problem?
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Old 14-11-2023, 03:43 AM   #8
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Default Re: Are these heater core hoses the right way around??
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If theyre not rubbing on anything..... whats the problem?
I'm assuming there would be a problem if the inlet to the heater core was hooked up to the hose that is meant to be on the outlet and vice versa?
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Old 14-11-2023, 05:23 AM   #9
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Default Re: Are these heater core hoses the right way around??
To me, it does appear they’re transposed. That’s from looking at the bends moulded into each hose.

If it’s a “constant flow” type heater core, it’s not going to matter - it will heat the same.
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Old 14-11-2023, 08:53 AM   #10
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Default Re: Are these heater core hoses the right way around??
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Originally Posted by SIM1 View Post
I'm assuming there would be a problem if the inlet to the heater core was hooked up to the hose that is meant to be on the outlet and vice versa?
Considering a heater core is essentially a long length of pipe arranged inside a series of fins, its no different to drinking with a straw.....
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Old 14-11-2023, 10:16 AM   #11
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Default Re: Are these heater core hoses the right way around??
…Except you’re less likely to be concerned with who used a heater core before you. #backwash
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Old 14-11-2023, 06:13 PM   #12
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Default Re: Are these heater core hoses the right way around??
Does this diagram help?

ZC Heater Hoses.png
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Old 14-11-2023, 10:38 PM   #13
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Default Re: Are these heater core hoses the right way around??
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If it’s a “constant flow” type heater core, it’s not going to matter - it will heat the same.
Although some take advantage of thermo-siphoning induced flow and then the hot coolant from engine should be preferably connected to the lower inlet.
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