What causes a blown head gasket?

1996 FORD MUSTANG
163,000 MILES
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SHERRYBONDWEBB
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What causes blown head gasket?
Aug 8, 2012 at 1:17 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
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Warped cylinder head from overheating the engine. Corroded gasket from acids that build up in coolant.
Aug 8, 2012 at 1:28 AM
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CJ MEDEVAC
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THERE COULD BE SEVERAL CAUSES

HERE'S A FEW

HEAD(S) NOT TORQUED CORRECTLY...WRONG TORQUE...DID NOT USE TIGHTENING SEQUENCE...DID NOT TORQUE IN STEPS

WARPED HEADS RE-INSTALLED WITHOUT PROPER MACHINING

ENGINE OVERHEATED---HEADS WARPED

EXPECTING THE ENGINE TO PERFORM BEYOND THE INTENDED CAPABILITIES IT IS PRESENTLY BUILT FOR

THE MEDIC
Aug 8, 2012 at 1:32 AM