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PostPosted: Sat Nov 21, 2015 10:57 pm 
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Joined: Wed Aug 06, 2014 10:50 pm
Posts: 4
Location: Trinidad and Tobago
I have a 94 gti 1.3 dohc engine recently changed head gasket and bought a two core radiator to run with my car but before the fan come on I notice water pushing out of the reservoir and when the fan comes on it continues but when the car turn off don't hear water bubbling in reservoir also water is spiraling In the radiator as well can anyone help with this issue please would appreciate thanks


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PostPosted: Sun Nov 22, 2015 12:39 am 
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Joined: Fri Jan 07, 2005 2:46 pm
Posts: 887
Location: Arizona
Did you get new radiator cap for that new radiator too? Sounds like bad radiator cap.


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PostPosted: Sun Nov 22, 2015 1:09 am 
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Joined: Tue Jul 03, 2012 12:19 pm
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Location: vancouver island, canada
bad cap or bad head gasket about the only 2 things it could be. either the cap is not holding the pressure like it should causing the pressure blow by. or the new head gasket has a problem and causing the combustion to blow into the cooling system in which case its more then the 13 lb cap can handle.

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92 geo metro 1.0L 5 spd. 2 dr Soon to be my turbo swap car. (Dragonfly) sold
91 pontiac firefly, 1.0L 2dr auto. stock. (The crap can) sold
91 chevy sprint. 1.0L 5 spd. My first turbo swap. (Red rocket) now the purple nurple
95 geo metro. 1.3L auto parts car. (Scrap)
91 chevy sprint turbo, blueboy keeping it "stock"


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PostPosted: Sun Nov 22, 2015 8:05 am 
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Joined: Wed Aug 06, 2014 10:50 pm
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Location: Trinidad and Tobago
Yes I have a new cap on the radiator I recently bought one as well the thing is when I switch the fan to run continuously now and it stop pushing out water can anyone explain that for me


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PostPosted: Sun Nov 22, 2015 3:44 pm 
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Joined: Mon Jun 16, 2014 10:10 am
Posts: 342
Location: Palm Springs, Calif
Are your reservoir hoses reversed?

If you understand, the radiator would overflow into the reservoir, but wouldn't fill back up when it cooled.

Other than the two other things previously mentioned
(Bad radiator cap)
(Bad head gasket)
reversed reservoir hoses would explain your problem.

Post a picture of the hoses leading out of your reservoir.

You didn't hear water bubbling in the radiator? No problem.
Water swirling in the radiator? Normal.
Besides, you shouldn't remove the radiator cap when the engine is running.
The air can't be purged if you keep opening the radiator cap.
Only remove the overflow cap and add coolant so that it will be sucked in as the coolant cools.
After a few hot and cold cycles, the engine will be purged of air and everything will be normal.

You wired the radiator fan on continuously and it stopped pushing coolant out?
Normal.
No need to explain, but if you must:

Coolant EXPANDS as it heats.
It goes into the overflow tank.
Normal.
You put the fan on ALL THE TIME, it doesn't heat and doesn't go into overflow tank.
Simple, no?

Now put it all back together the way it should be and check that overflow cap.

There are many, many posts from people with similar problems as yours.
After you change a head gasket, air can get trapped in the area by the thermostat.
The thermostat doesn't open and people panic.
Just watch the thermostat when you are in the car and wait til it reaches normal.
Then shut it off and let it cool.
This will allow the thermostat to open and the air to find another place to hide.

Start it up again, and the air will run up into the radiator.
You will see coolant SWIRLING due to the action of the water pump if you remove the radiator cap.
This is normal.
But the air needs to get out through the OVERFLOW TUBE. So leave the radiator cap alone...period.
Then, an hour after you shut it down, the overflow tube has sucked most of the coolant back into the engine from the reserve tank.

Do NOT remove the radiator cap.
Simply top off the overflow tank and drive it, keeping an eye on the temperature gauge closely for the first few miles. After a few HOT/COLD cycles, the overflow tank should have a steady level of coolant, and you can fill the overflow tank to the appropriate level (hot or cold).

Simple no?


Post a picture of your overflow tank and cap.
If you've relocated it and forgot to mention that would also make a difference.

Giving help is a two edged sword.
You tell us, but you don't SHOW us, so we can't give you the best advice.
About the time you decided to swap in a new head gasket might have been a good time to start a thread about it.
Then we'd know what a great job you did and wouldn't mention it was a bad head gasket.

Harsh?

Not as harsh you wiring your fan ON all the time.
That's just crazy.
Who suggested that?


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PostPosted: Sun Nov 22, 2015 10:28 pm 
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Joined: Wed Aug 06, 2014 10:50 pm
Posts: 4
Location: Trinidad and Tobago
OK my bad on not loading photos will do so tomorrow please God the thing is my fan switch isn't working so that's why I have the fan running direct for now have to order one but I haven't relocated my overflow tank it's where it supports be but it's interesting if it's not in da correct order I don't usually Interfere with my radiator cap I only Notice the spiraling when I flush out my radiator from time to time but as you mentioned I will post some pics and see what can happen from there thanks for advice so far


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PostPosted: Sun Nov 29, 2015 10:12 am 
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Joined: Mon Jun 16, 2014 10:10 am
Posts: 342
Location: Palm Springs, Calif
OK
Your bad.
A picture would have show us you used the wrong radiator cap, too.

Looks like the guys posting above have better experience than me with aluminum radiators.

Here's another shock story like yours:
http://geometroforum.com/topic/5913180/1/?x=90
and it indicates the new radiator requires a different cap.

Now it's my turn:
My bad.


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