Diesel engines can be more prone to head gasket failure than other types of engines. Diesel head gasket repair can also be more complicated that other head gasket repairs due to the complexity of a diesel engine and the extra work involved in the repair. Diesel head gasket repair also often has to be done specifically at a specialty diesel engine shop or dealership which can charge higher labor rates which also will add to the cost and complexity of the job.
Diesel engines can blow a head gasket just like a gasoline engine. Diesel engines also have higher combustion pressures during normal operation so a diesel engine head gasket leads a much more difficult life. A gasoline engine relies on a spark to ignite the fuel-air mixture so the pressures and temperatures are limited. If they get too high, the fuel/air mixture ignites on its own, called knocking and can cause damage to the head gasket. On the other hand, a diesel engine operates because the intake air charge is so hot that when the fuel is injected into the cylinder it combusts due to the high heat so no spark is needed.
To make sure the air charge is heated enough to run, some diesel vehicles will utilize glow plugs or intake air heaters during startup or cold weather. The one thing every diesel engine does to help heat up the intake air charge is to have a relatively high compression ratio. The more the air is compressed by the piston, the hotter it will get so most diesel engines have compression ratios at least about 15:1 but sometimes upwards of 20:1! On top of these high compression ratios, many diesel motors have turbo charges adding even more pressure. Once all this air is stuffed into a tiny combustion chamber, pressures are already extremely high putting lots of stress on the head gasket. Once you add the fuel and it ignites, pressure skyrocket up to as much as 2000 PSI or higher!
These high pressures put lots of stress on the head gasket in your diesel motor. Most diesel motors are designed to last for lots of miles since they are usually relatively low revving engines due to the longer stroke. To help make sure the head gaskets last as long as the rest of the motor, many diesel engine manufacturers have added an increased number of head bolts or used exotic materials in their head gaskets to help them last longer, but many head gaskets will fail on diesel engines even with normal use.
Due to the complexity of a Diesel engine, head gasket replacements can often be expensive jobs. The job is often more complicated due to the extra equipment on diesel engines like the high-pressure injection pump and turbocharger, and the mechanics completing the job will often charge more for their services.
In order to avoid paying these high costs for replacing your diesel head gasket, consider repairing your head gasket instead. BlueDevil Head Gasket Sealer is a non-particulate sealing agent that you can add to your vehicle’s cooling system. This sealing agent will bond to your current head gasket at the leak point until the leak is permanently sealed stopping your head gasket leak and keeping your engine running. BlueDevil Head Gasket Sealer can hold up to the high pressures in your diesel engine and keep it running properly.
For more information about BlueDevil Head Gasket Sealer, visit our product information page here: BlueDevil Head Gasket Sealer.
You can also purchase BlueDevil Head Gasket Sealer at any of our partnering local auto parts stores like:
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