300ZX (Z31) Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.

So afraid!!

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Old 03-11-2007, 07:34 PM
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So afraid!!

I was cruising in my 86na a couple of days ago. I noticed a slight stall, then another then my temp gauge goes to almost 270. I pulled over and the car had overheated. put water and antifreeze in but the car wouldnt start. I got it home, crawled under it. When the motor turns over, antifreeze blows out the exhaust manifold where the exhaust pipe connects. Im afraid that ive cracked a head, cylinder, or, best case, a blown head gasket. Has anyone got any ideas before i tear the heads off?
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Old 03-11-2007, 07:47 PM
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i have a 1986 na engine in better shape than yours but needs rebuild--never been overheated and not seized. needs main bearing, oil pump, rings and valve job--hay, its gonna be apart--might as well check out the rest--------good strong engine before suicide by oil pump.......
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Old 03-11-2007, 07:49 PM
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Originally Posted by cliftcrawford
Has anyone got any ideas before i tear the heads off?

Pull your spark plugs & look at the tips. If it's blowing coolant out the exhaust... 99% sure you warped the head & melted the headgasket.
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Old 03-11-2007, 07:53 PM
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i yam in coronado--car soon to be more inland and dismemberable---come on down---ps-----bring a truk.........
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Old 03-11-2007, 08:07 PM
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I just did a complete rebuild 3k miles ago. looks like ill be in the market for some heads.
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Old 03-11-2007, 08:16 PM
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well, homes, come on down..........what else do you wish from the royalpain piglet??????......ps--where are you......

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Old 03-11-2007, 08:21 PM
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central louisiana
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Old 03-11-2007, 08:47 PM
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hehe... a lil bit of a driver to cali then... might not be "comin on down"
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