Blown Head Gasket – How to Fix a Blown Head Gasket Without Replacing it

Sometimes, it’s difficult to tell if your vehicle has a blown head gasket. In this article, you would learn what a Blown head gasket is, the signs of a blown head gasket, what causes a blown head gasket and also how to fix a blown head gasket without replacing it. To learn more, kindly read to the end.

Blown Head Gasket
Blown Head Gasket

Blown Head Gasket

You may be reading this article with no knowledge of what a Blown Head Gasket is. If so “what is a Blown Head Gasket?” A Blown Head Gasket is a condition that happens when the seal between a vehicle’s cylinder head and the engine block malfunctions. A blown head gasket causes overheating, leakages and other serious damages overtime if not attended to.

The Head gasket is a necessary automotive part in any vehicle. “What is a Head gasket?” you may be wondering now. The Head gasket is the seal between a vehicle’s cylinder head and the engine block. The head gasket is found under the bonnet and its main function is to cover the combustion gases in the cylinder and to prevent engine oil and coolant from leaking into these cylinders.

What Causes a Blown Head Gasket

Having known the functions of the Head gasket, you may be worried about your vehicle has a blown head gasket. Hence, you should be aware of the causes of a blown head gasket as this would help you take precautions. When the engine of your vehicle overheats, this temperature may get to a point where the cylinder head and the Engine block expand excessively. This excessive expansion results in the failure of the Head gasket which is the seal.

Also, denotation or pre-ignition could occur in your Engine causing the Cylinder contents to leak past the armors and this leads to a blown head gasket. In simple words, an overheating engine may lead to a Blown gasket head. To prevent your engine from overheating, you should ensure your radiator is not leaking and is always filled with adequate coolant.

 Signs of a Blown Head Gasket

You may have the feeling that the Head Gasket of your vehicle is blown, the list below contains the symptoms of a blown head gasket. You could go through this list below to confirm if you have a blown head gasket.

  • Engine overheating. This is the first sign of a blown head gasket.
  • Leakage of oil or coolant. This is because the head gasket may have failed between the oil or coolant passage and the engine block.
  • A milky white coloration in the oil. This is caused by the vehicle’s coolant leaking into the oil.
  • A noticeable bubbling in the Radiator and coolant reservoir.
  • A thick white smoke emanates from your vehicle. This is caused by the antifreeze leaking into the cylinder.
  • A blue or grey smoke also indicates that you may have a blown head gasket.

Having known this, you should confirm with these signs if your vehicle has a blown head gasket and fix an appointment with your mechanic if so.

Can You Drive with a Blown Head Gasket?

Having read to this point, you may be wondering if it is safe for you to drive your vehicle with a blown head gasket. The answer is NO! This is because a vehicle with a blown head gasket will pose a health hazard to the environment and most importantly, further damages would happen to your car. Therefore, you are advised to repair your vehicle as soon as possible if it has a blown head gasket.

How to Fix a Blown Head Gasket Without Replacing it

If the head gasket of your vehicle is not full-blown, you could fix it yourself without having to replace it. This is cost-efficient and you can fix the blown head gasket yourself if you have an experience in car repairs. To fix a blown head gasket without replacing it, you would be needing a good head gasket sealer and with this, you can follow the guide below to carry out the process:

  • Park your car on a leveled surface and lift up the bonnet.
  • Make sure your engine is cold before you begin.
  • Carefully remove the Thermostat and also flush the cooling system of your vehicle.
  • Fill the cooling system of your vehicle with fresh water.
  • Start the engine of your vehicle and add the Head gasket cooler to the radiator slowly.
  • Replace the radiator cap and let your vehicle run for some minutes.
  • Flush the cooling system a second time.
  • Replace the thermostat and fill the cooling system with an appropriate amount of coolant.

Having done this, you should let your vehicle run for a while and inspect if there is still smoking and other signs of a blown head gasket. However, if the situation of your vehicle’s blown head gasket is bad, you should consider booking an appointment with your mechanic.

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