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Radiatior over flowing?? after long trip?

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Old 08-31-2011, 12:16 PM   #1
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Default Radiatior over flowing?? after long trip?

I have a LQ9 in my Lexus SC300,
I have a LS1 water pump with water pump spacers, no heater (u shaped hose connecting the 2 heater hose outputs).

i have a 28x16x3 radiator with a 14" silicone intakes fan that runs all the time.

after i drive the car some what hard for a trip like i drove for about 3 hours, and when i went to the flash light drags and hot lapped it for a while.

when i shut it off about a gallon of coolant spits out of my over flow tank, and by the time its cool enough for me to inspect what happened, the over flow which i would say is 3/4 of a gallon is totally empty, and about 2 inches of water is missing from the rad.
Is there something im doing wrong. the sending unit for my gauges say 185ish degrees. and the motor is working perfect

any ideas or suggestions would be appriciated
thanks
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Old 08-31-2011, 12:45 PM   #2
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Post a picture of your radiator and fan assembly
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Old 09-02-2011, 09:20 AM   #3
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Check your radiator cap. My 99Z did that because of a bad seal on the cap
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Old 09-04-2011, 11:59 PM   #4
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Originally Posted by Hugger67RSSS View Post
Check your radiator cap. My 99Z did that because of a bad seal on the cap
Either that or you need a higher rated pressure cap.
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Old 09-04-2011, 11:59 PM
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coolant, heater, hose, ls2, output, pump, spits, turn, water


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