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Water Spurting Out Of Overflow Tank

GTAAAH

By GTAAAH,
in General Maintenance

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GTAAAH Mentor

GTAAAH

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Hey, my mates got a r32 gtr, has a standard engine in it with n1's (got like 275awkw on 18psi) fuel reg, aluminium radiator, power fc, few other things and we've noticed that every time he gets to work after sitting in traffic his overfill bottle overfills to the point theres water squirting out of the top of it and out onto the pillars.. I've noticed with mine it filling up but it drains back into the radiator..

Is this normal? He's running correct coolant mix (whereas mine is currently a bit low on mix but still not having problems) and his temp gauge always stays smack in the middle, car runs fine

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GTAAAH Mentor

GTAAAH

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Any idea of water / oil temps?

Water temp is constantly on half ( like right where it should be) and oil temp ranges a bit because his gauge is a bit dodgy, but generally around half, sometimes flicks up to full until you tap it back down though it's not a proper reading

gotRICE? Veteran

gotRICE?

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Posted

Its possible that you put too much coolant into the overflow bottle when the radiator was changed/flushed etc.

To test that theory, drain the overflow completely. Then re-fill it to the MAX mark.

If it keeps doing it after that, then you have other problems. Like possibly the radiator cap isnt allowing the water to be sucked back through when the car cools.

My old Hiace did that. When it got hot, it would push coolant into the overflow as normal, but when the engine cooled, under less load, freeway driving, or the key was off,

it was not drawn back into the engine.

So of course the bottle was slightly more full than it used to be.

Repeat this a few times, and bang. Your overflow is full and, overflowing :cheers: Eventually you will run it dry and cook the engine. So keep a close watch.

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