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Captain Slow.
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1,483 Posts
To much NAWZ
 

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1.5JZ Turbo Supra
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3,378 Posts
Depends on which time you are talking about...


Completely stock 7M untouched... under torqued head bolts


any time after some one has touch its because of something they did wrong. /end thread good bye
 

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Registered
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281 Posts
deck not surfaced properly when gasket changed
head not surfaced properly when gaset changed
head not hardness tested and head posibly soft (seen it a few times)
incoffect torque settings, pattern

has anyone experimennted with drilling out the waterjacket hold in the back of the head that the block and the gasket has but the head dosnt have??
 

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443 Posts
because they're REALLY horny...

blowing HGS is their only outlet.
 

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THE LAST NA
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1,326 Posts
Depends on which time you are talking about...


Completely stock 7M untouched... under torqued head bolts


any time after some one has touch its because of something they did wrong. /end thread good bye


good point, and i will add all head gaskets fail if given enuff time.....

i side note, poor cooling and coolant quality and drecrease life.....I estimate that a genuine "toyota" untouched 7m can get 80k to 250k depending on how well the coolant sysyem was maintained......

I recommend checking for loose head botls every 50-80k........





[/end thread]
 
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