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In either case, the head has to be removed. Once it's off, a machine shop can "Flux" the head. IF IT'S and iron head, they put a powerful magnet on the head then spray powdered iron to see where it lines up. If the powdered iron gathers along a line, you have a cracked head and it isn't worth anything more than scrap prices.

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โˆ™ 2006-03-21 15:31:35
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Q: How would you tell the difference between a blown head gasket and a cracked head?
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What is the difference between a cracked block and a blown head gasket?

A cracked block means that the engine itself is cracked. A blown head-gasket means that the gasket between the engine and the head has blown. Either can be caused by overheating the engine. When an engine overheats the head can warp causing the head-gasket to give out. In some engines the heat cracks the block. If the block is cracked, it's over. If the head-gasket is blown you can always machine the head surface and put it all back together.


What happens if water went into exhaust pipe of truck?

blown head gasket or cracked block blown head gasket or cracked block


How do you repair a blown head gasket or cracked head?

A blown gasket can be repaired by replacing the gasket...if you are talking about the head gasket, then you have to remove the cylinder head from the engine block and replace the gasket that is inbetween them. Cracked heads generally have to be replaced because they are made of aluminum which cannot be repaired permanently once it is cracked.


How can you tell the difference between a blown head gasket cracked head or cracked block?

If you suspect the head and/or the block, have them "magnafuxed" by a machine shop. On the other hand, as you're pulling it apart, check the head gasket and if it's shot, there is usually only the one problem.


Why is there antifreeze in the oil?

Blown head gasket or cracked head.


You have antifreeze in your oil?

cracked head or blown head gasket


Why is there oil in your radiator?

you have a warped/or cracked head,or blown head gasket


Is antifreeze in exhaust?

not unless you have a cracked head or blown head gasket


Why is there antifreeze in one of the cylinders of your 1960 Oldsmobile?

Blown head gasket, cracked head, or cracked block.


Could antifreeze leaking fromthe overflow be a blown head gasket for sure?

Blown head gasket or cracked head or both are a good bet.


How does water get into engine oil marine?

Blown head gasket or cracked head.


Why is there gas in your oil on a Ford Contour?

Because you have a blown/cracked head gasket.


When should a head gasket be changed?

Whenever it is blown or the head is cracked or warped.


You have coolant getting into your oil how?

You have a blown head gasket or a cracked head. STOP driving this car immediately or you will do serious damage to the engine. It will need the gasket replaced and the head checked.You have a blown head gasket or a cracked head. STOP driving this car immediately or you will do serious damage to the engine. It will need the gasket replaced and the head checked.


Why is antifreeze missing from over flow?

you could have a cracked block or a blown head gasket it could even be a cracked head


Oil in coolant reservoir what oil is it in a 1993 88 Royale?

Blown head gasket, cracked hed or cracked block


Oil in the header water tank?

Cracked Engine Block or blown head gasket.


What causes coolant to leak into the exhaust manifold?

Blown head gasket and/or cracked head.


What causes coolant in the oil?

Blown head gasket, cracked/warped head, or both.


What other than blown head gasket can cause radiator bubbles?

A cracked head.


What causes antifreeze to mix with oil?

cracked or warped head/blown head gasket.


What causes Water in pistons Mazda 323?

A cracked/warped head, Blown head gasket, cracked cylinder wall, or cracked/warped intake manifold.


Can anything oher than a blown head gasket cause water in oil?

A cracked head or a cracked block can also cause this.


What causes water in motor oil of a 2001 Chevy Camero?

Blown head gasket - Warped or cracked head - cracked block.


What causes water in motor oil of a 2002 Chevy Malibiu?

Blown head gasket, cracked head or cracked block. Busted head gasket; cracked cylinder head; broken piston; or bad oil pan gasket if driving thru high water.