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Which way does water flow in the radiator

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Old 09-27-2011, 07:54 PM   #1
MOXIE62
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Default Which way does water flow in the radiator

I want to flush out the water in my 62 radiator. It's out of the car. I would like to know what direction does the water flow in a radiator. From the top down or from the bottom up.
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Old 09-27-2011, 08:02 PM   #2
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I want to flush out the water in my 62 radiator. It's out of the car. I would like to know what direction does the water flow in a radiator. From the top down or from the bottom up.
Like all water , it flows down hill (top down)
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Old 09-27-2011, 08:16 PM   #3
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Originally Posted by MOXIE62 View Post
I want to flush out the water in my 62 radiator. It's out of the car. I would like to know what direction does the water flow in a radiator. From the top down or from the bottom up.
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.
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Old 09-27-2011, 08:39 PM   #4
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Originally Posted by RestoMike View Post
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.
I don't think so.
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Old 09-27-2011, 08:47 PM   #5
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Originally Posted by RestoMike View Post
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.
Ah, no.
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Old 09-27-2011, 08:48 PM   #6
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I don't think so.


Top down.

The lower hose is water pump suction. The thermostat (upper hose) is hot block/head/intake manifold discharge.

Water flows from pump to block to upper radiator hose to top of radiator and cools as it goes down the rad passages.

Thermostat goes in with sensing element into manifold.

Better double check any thermostats used/installed in your restorations Mike...


Last edited by bub; 09-27-2011 at 08:56 PM.
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Old 09-27-2011, 09:08 PM   #7
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Quote:
Originally Posted by RestoMike View Post
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.
nope...

Bill
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Old 09-27-2011, 09:11 PM   #8
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Originally Posted by bub View Post


Top down.

The lower hose is water pump suction. The thermostat (upper hose) is hot block/head/intake manifold discharge.

Water flows from pump to block to upper radiator hose to top of radiator and cools as it goes down the rad passages.

Thermostat goes in with sensing element into manifold.

Better double check any thermostats used/installed in your restorations Mike...

Ok....Ok boys, thinking cap was on backerds@#^^*#! Holy cow......how quickly they turn on you!

Last edited by RestoMike; 09-27-2011 at 09:14 PM.
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Old 09-27-2011, 09:11 PM   #9
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Quote:
Originally Posted by 1955 copper View Post
Like all water , it flows down hill (top down)
YUP.

Quote:
Originally Posted by RestoMike View Post
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.

NOPE.
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Old 09-27-2011, 09:35 PM   #10
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Chevy Small Blocks cool top down, unless of course you have a 92 or later LT1. The second generation LT1 used a reverse flow cooling system!
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Old 09-27-2011, 11:15 PM   #11
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Actually on a 62, it flows from the left to the right, not up to down.
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Old 09-27-2011, 11:39 PM   #12
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Quote:
Originally Posted by RestoMike View Post
Believe you find water from the block (which is heated) flows into the lower radiator hose cooling as it traverses upwardly to top of radiator....cooling as it travels. Back into the block through the top hose.
only in australia does water flow UPhill
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Old 09-28-2011, 02:54 AM   #13
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Quote:
Originally Posted by vetrod62 View Post
Actually on a 62, it flows from the left to the right, not up to down.
On every '60s chev, it flows that way. But, it is always L to R and up to down, the difference is some flow L/R first and up/down second, followed by L/R again, and others are up/down, then L/R then up/down again, depending on if the rad is cross flow or vertical tube.

Doug
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Old 09-28-2011, 09:24 AM   #14
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Mid year small blocks use a cross flow radiator. Water comes into the radiator from the upper hose at the left of the car, flows through the radiator from left to right, and is picked up at the lower radiator hose on the right side of the vehicle.

I think your '62 is similar . . . .

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Old 09-28-2011, 10:01 AM   #15
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The answer is in this clue. The bottom hose has a spring in it to keep it from collapsing.

If the pump was pushing water through it you wouldn't need a spring. The pump is pulling water from the bottom of the radiator.
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Old 09-28-2011, 10:20 AM   #16
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Interesting question... Makes you think a little, let's see:

Thermostat housing also called water outlet.
Spring in lower hose to presumably to prevent collapse.
The water pump is a centrifugal pump so it pumps from the center outward.
T-stat bimetal spring is up stream to sense temp.

Looks like flow is from lower hose to pump to block to water outlet to upper hose and through the radiator back to the lower hose.

Harry
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Old 09-28-2011, 10:49 AM   #17
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:crazy2 : You guys are a fun read ,it's simple which way do you think the pump "fan
"direction turns pushing water up or down???????
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Old 09-28-2011, 12:49 PM   #18
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Quote:
Originally Posted by 66since71 View Post
Looks like flow is from lower hose to pump to block to water outlet to upper hose and through the radiator back to the lower hose.

Harry
Correcto.
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Old 09-28-2011, 08:01 PM   #19
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Quote:
Originally Posted by 66since71 View Post
Looks like flow is from lower hose to pump to block to water outlet to upper hose and through the radiator back to the lower hose.
Like to add - If your over-heating and the top hose is cool or luke-warm, the thermostat is stuck closed.
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Old 09-30-2011, 01:38 AM   #20
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Quote:
Originally Posted by MOXIE62 View Post
I would like to know what direction does the water flow in a radiator.
usually towards the leak......
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