Intake manifold gasket for different automobiles
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Your Intake manifold gasket worn out? » Read more about common malfunctions • Repair • Replacement manual
Protection against false air from the intake seal The intake seal is a small, yet very important component that is required for smooth operation of an combustion engine. This gasket seals the intake from outside air. In addition, it thermally separates the intake manifold from the hot cylinder head. This is especially important for vehicles that take advantage of a charge from a turbocharger, a G-charger or a supercharger. At a temperature of 90 °C - 140 °C, compressed charge air is always much hotter than common charge air. The intake gasket is easy to find, easy to replace and inexpensive. Yet, as it is installed in a quite well-hidden place, lay people may have trouble discovering a defect on this gasket. However, some simple tricks can help with this. This gasket is also called "intake manifold gasket" or "seal kit for the intake manifold". Air and false air If there's a sudden decrease in the engine performance, the consumption of fuel rises, accompanied by a choppy or stuttering response to acceleration, the cause may be the dreaded false air. This means that there's a leak between the air filter or air flow meter and cylinder head, by which pressure escapes or unwanted air is getting sucked in. If the airflow or rather the actual air pressure differs from the value calculated by the air flow meter and the control unit, then the entire engine management is no longer correct. Then the combustion is either too rich or too poor, which causes interference in the controlled unfolding of the engine's performance. False air can occur along the entire intake tract behind the air flow meter: The mass air flow sensor itself, the intercooler, the suction hose or the intake manifold can become damaged from mechanical or chemical and thermal influences. A component that is often overlooked during troubleshooting is the intake seal. Position of the intake seal The intake seal is easy to find: It is located precisely between the intake manifold and the cylinder head. The intake manifold, also referred to as "induction pipe", is a highly specific component made of heat-resistant plastic. Its replacement is usually very expensive. The seal mostly consists of small O-rings or paper, which can easily be removed when removing the intake manifold. Recognizing defective intake seals The steps for repairing an intake seal outlined herein are a general representation of the procedure rather than instructions for installation. If the engine suffers from rough idling, reluctant response to acceleration or increased consumption of fuel, all symptoms of damage to the intake system, it is common practice to check the entire path of the air. The first method is examining whether for whistling or hissing noise from the intake system when the engine is running. If no leaks are detected this way, the next step is spraying short bursts of brake cleaner along the air intake system with the engine running. Note: Never spray brake cleaner onto the hot manifold, for this may easily cause deflagration! If the engine speed changes, you can more easily localize the leak. Finally, the air intake system can also be dismantled and removed. The leaks can easily be recognized by holes or cracks. Once a gasket has been removed, it is generally replaced with a new one rather than being reused. However, when replacing the gasket it is essential not to damage the intake manifold. The high temperatures from the engine and the constant vibration can make the intake manifold's plastic brittle, especially around they eyes for the screw connections. They can easily break, especially during assembly. In this case, the bridge must also be replaced. Safety through quality components AJUSA and ELRING are manufacturers of high quality gaskets for the intake passage. These companies' products guarantee a maximum service life. They are tested, heat-resistant and pressure-stable. This distinguishes them from the often poor-quality products from unknown manufacturers. A brand quality seal kit for the intake manifold costs about 15 euros. One simple reason against using inexpensive intake manifold gaskets is the fact that the bridge must be disassembled each time they are replaced. Thus, the risk of irreparable damage to the intake manifold exists during each repair of the intake gasket. Then a replacement of a 15 euro component may quickly result in a repair costing several 100 euro. You can effectively avoid this risk by always choosing an established brand offering maximum quality when replacing intake seals.