How to repair your head gasket with engine block sealer

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Before you start to read how to repair your head gasket with engine block sealer, let me make you understand what does a head gasket do? In the simplest terms, vehicle engine is separated into two major sections. The top of the engine, where valves control air flow in and out of the cylinders and fuel is introduced to the cylinder bank, is called the head. Bottom portion of the engine is the largest portion where cylinders convert mechanical energy into kinetic energy.

For a better engine function, there must be an airtight seal between these two sections. Your head gasket ensures seal is maintained but after years of wear and use, gaskets can dry out, crack and fail. When this happens, oil, coolant and fuel end up in the wrong places and the risk of overheating becomes extremely high.

How to repair your head gasket with engine block sealer

Engine block sealers do the work of hardening the seal at the leaks by using the heat of the engine as a catalyst. The process of using engine block sealers is usually very simple task that can be done on one’s own. Note, that before attempting to repair a head gasket leak with block sealer, it would be advised to have the vehicle properly diagnosed, to be sure of the nature of the problem before taking such measures.

Materials needed for own gasket leak repair.

  • Coolant
  • Engine block sealer
  • Gloves

To explain in a simple way; read the instruction on the engine block sealer, locate the radiator cap, add the engine block sealer where you add coolant (Open the radiator when the engine is cool otherwise pressurized engine will spray hot coolant everywhere when the pressure is suddenly released), replace the cap, turn on the engine, let the engine run for an hour, turn off the engine and allow it to cool down and check to see if the coolant should be topped off.

Takeaway note

Using block sealer is a last resort to repair head gaskets, this is often a great option to consider if repairing the engine doesn’t seen feasible or appropriate. While the results may vary greatly depending on factors such as the severity of the leak and the type of sealer used, it is often worth a try since the cost is much cheaper than having the engine repaired.

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