Step 2: Check the head and block for flatness. A machined straight edge across the surface and feeler gauge will reveal all. The service manual will provide specifications. Blocks or heads out of specification must be sent out to the machine shop and be repaired.
The machine shop will also be able to check for cracks. Step 3: Prepare the surface. Never use anything that will remove metal. Be careful not to scratch the deck of the block or mounting surface of the head. While it may seem like a good idea to use a scrubber pad connected to a power tool, the surface irregularities created can cause sealing problems down the road. Step 4: Chase the head bolt or stud holes with a tap or thread chaser to remove any crud and prepare the threads.
Use compressed air to blow out any stragglers. Correct head bolt torque is of the utmost importance. Any interference can throw off the torque readings. Step 5: Prefit the head gasket in the correct orientation. Never use sealant unless specifically required by the manufacturer.
Head gaskets that require sealant will usually come so equipped. The service manual will outline sealant locations and requirements. Step 6: Correct bolt tightening sequence and torque is key to proper head gasket sealing. This small yet vital component is used to seal the internal combustion process allowing coolant and oil to travel throughout the engine to cool and lubricate.
Blown head gasket symptoms are pretty easy to identify and need to be rectified pretty quickly to prevent damage to your engine. This article will help you understand the head gasket, what it does, and how to know when it fails. In addition to sealing the combustion portion of the engine to allow oil and coolant to circulate, the head gasket also seals the combustion chamber in the engine. This allows the vehicle to produce enough power to move forward, as well as keep harmful gases from exiting the combustion chamber by directing them through the exhaust system.
The head gasket in modern vehicles is comprised of several layers of steel material entwined with elastomer, making them more durable and longer lasting. Vehicles produced in the past were equipped with gaskets created by graphite or asbestos. The head gasket is a vital component within the combustible engine. The combustion chamber contains the pistons and needs a high amount of pressure to ensure the pistons continue to fire appropriately.
Additionally, oil and coolant have equally important jobs but, in order to perform their tasks efficiently, they cannot mix. The head gasket keeps the chambers separated to ensure there is no cross-contamination of fluids. The most common cause of a blown, or damaged, the head gasket is often a result of an engine that has gotten too hot. High engine temperatures are usually caused by a lack of coolant within the radiator, usually due to a leak.
Some gaskets are likely to weaken sooner than others depending on their material. Aluminum, for example, expands faster when heated. Metals that have a higher thermal expansion rate are more sensitive to heat. You may also notice a loss of engine power due to lower cylinder compression if the head gasket leaks to adjacent cylinders. If you experience any of these symptoms, the cooling system may be pressurized, shut the engine down and do not attempt to release the pressure.
If you experience coolant leaks on the ground or garage floor, have it checked out. Also, make it a habit to keep an eye on your temperature gauge; if you notice it running hot, have it immediately checked out by your professional technician. Learn more about Fel-Pro quality gaskets that are specifically designed for the repair environment, find your car part , or find where to buy your auto part today.
The content contained in this article is for informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content. Check them out today! Where to Buy.
0コメント