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Old 01-08-2009, 12:35 AM   #1
kulturekat
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heater hoses to engine swapped?

just out of curiousity what would happen if someone were to swap the two hoses going to and from the heater that connect to the intake and to the water pump? what would be the effects if any? would it cause the engine to over heat?
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Old 01-08-2009, 12:37 AM   #2
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Re: heater hoses to engine swapped?

EDIT: Read the post wrong
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Old 01-08-2009, 12:44 AM   #3
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Re: heater hoses to engine swapped?

it isnt somehting i was thinking about doing its more of somehting i think i may have done. anyone know which one should go where?
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Old 01-08-2009, 12:53 AM   #4
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Re: heater hoses to engine swapped?

Hose sizes coming from the heater core should be sized to accomodate the correct fitting on the intake and the water pump. I found out I had mine switched by forcing the wrong hose onto the bottom of the heater core and snapping it off. Not fun replacing stuff due to ignorance. I have the top hose from the core into the intake and the bottom to the water pump. I haven't had any issues. Hope this helps. Not really sure what the outcome is of switching them.
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Old 01-08-2009, 01:03 AM   #5
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Re: heater hoses to engine swapped?

i just went out to make sure and mine are matched up the same way. this came up because my truck started heating up tonight and not sure why ...i have been driving it for a while and its been doing fine and all the sudden tonight it went to 210 i have a 180 thermostat in it the only thing i can think of is that it went bad or is stuck. guess ill go buy another one tomrrow. anyone have any other ideas?
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Old 01-08-2009, 01:21 AM   #6
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Re: heater hoses to engine swapped?

The two are different sizes,as mentioned above,( 5/8" and 3/4" IIRC) but I don't see how having them reversed would cause any problem at all.
On mine, I have bypassed the heater altogether and there is no difference.
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Old 01-08-2009, 01:27 AM   #7
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Re: heater hoses to engine swapped?

i kind of ruled the hoses out as reason for the overheating but i figured id ask anyway. now on to figure out the real cause. gotta sart someone right?
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Old 01-08-2009, 02:23 AM   #8
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Re: heater hoses to engine swapped?

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Originally Posted by kulturekat View Post
i just went out to make sure and mine are matched up the same way. this came up because my truck started heating up tonight and not sure why ...i have been driving it for a while and its been doing fine and all the sudden tonight it went to 210 i have a 180 thermostat in it the only thing i can think of is that it went bad or is stuck. guess ill go buy another one tomrrow. anyone have any other ideas?
BTW, the thermostat controls the minimum temperature, not the maximum, for whatever that's worth.

You can take thermostat out & put it into a pan of water on the stove. Put a fire under the pan & see if the thermostat opens.
If you have a candy thermometer, clip it to the side of the pan, but don't let it touch the bottom.
That way you can see exactly @ what temperature your thermostat opens.

If the thermostat works, start looking elsewhere.
Start with the simple stuff, is the radiator full, etc? And then move on from there.

That's a lot cheaper than just going out & buying parts.

If you don't have a candy thermometer, go to the grocery store & buy one. You'll need it for making fudge anyhow.

Just my .02.
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Old 01-08-2009, 03:35 AM   #9
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Re: heater hoses to engine swapped?

having them swapped would not anve any ill effects on your engine, heater, air temp, nor coolant temp.
If you managed to pull it off.... no one would ever know.
Till one popped off due to size incompatibility anyways.
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Old 01-08-2009, 08:06 AM   #10
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Re: heater hoses to engine swapped?

210 is still normal to me i like to see cars run between 180-215. course the cool the motor the better the preformance
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Old 01-08-2009, 11:23 AM   #11
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Re: heater hoses to engine swapped?

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#1 - Make sure your fan belt is tight....

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Old 01-08-2009, 11:53 AM   #12
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Re: heater hoses to engine swapped?

210 just scares me ive never had a car or truck run that hot. but ive heard that from someone else that that is normal as well. the only other hting is that when it gets to 210 it smells hot.

i didnt think of the fan belt ill check that this afternoon
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Old 01-08-2009, 01:37 PM   #13
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Re: heater hoses to engine swapped?

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I had an experienced mechanic here in town recommend a warmer thermostat in my 327 based '36 Ford Coupe. I had a 185º in it and he recommended a 195-200º. I followed his recommendation and for the first few days it smelled hot too but it went away after driving it for a while. I don't consider 210º a problem. If it boils over... that's a problem..

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Old 01-08-2009, 01:54 PM   #14
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Talking Re: heater hoses to engine swapped?

It will work fine, and the hoses can be reversed, it is just a real pain trying to get 5/8 hose over a 3/4 fitting, but it will fit!!!!
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Old 01-08-2009, 08:36 PM   #15
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Re: heater hoses to engine swapped?

I reversed mine.I don't remember having a problem getting them on and haven't had a problem keeping them on.I'm kinda AR about stuff and didn't like the hoses crossing under the hood.When I asked someone else said they had done the same for the same reason.
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Old 01-08-2009, 08:49 PM   #16
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Re: heater hoses to engine swapped?

Quote:
Originally Posted by kulturekat View Post
210 just scares me ive never had a car or truck run that hot. but ive heard that from someone else that that is normal as well. the only other hting is that when it gets to 210 it smells hot.

i didnt think of the fan belt ill check that this afternoon
Don't take this a gospel, because I don't mess with 'em, but I think on the newer, smog controlled cars that coolant temperature in the 240+ range isn't uncommon.
That's why temp gauges are marked C-----H, rather than in degrees; so drivers don't soil their laundry when they see the temperature.

If I'm wrong, somebody correct me, please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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