Frequently Asked Questions

Engines usually result in valve distortion as a result of the intake or exhaust valves hitting the piston. The biggest reason for this is timing belt or timing chain failure.

The biggest reason for the cylinder head skipping is the high temperature of the engine. The sudden drop and increase in the engine water temperature is another reason for the cylinder head to jump. When the cylinder head is skipped, the engine starts, but high pressure in the water loss and coolant is experienced. occurs. That's why the vehicle; He becomes unable to walk.

Engines çwhile working ç combustion temperatures are up to 2000-2500 degrees. However, if the engine is overloaded, if there is a misfire time in the engine, or if the engine overheats, this temperature can rise up to 3000 degrees. As a result, the cylinder head gasket burns out. It is also known as the engine overheating among the people. If the cylinder head gasket is burned again after installation; The block and cover surface, the quality of the gasket used, the cylinder head bolts, whether the bolts are tightened correctly and whether the engine cooling is correct is to be checked.

Cylinder heads are warped as a result of overheating. Two different methods are used to eliminate this fault. Either the cover surface is grinded or the cylinder head is heated between 200-300 degrees and corrected. However, since the correction process will be risky in excessively crooked covers, the cylinder head is either grinded or replaced with a new one, in accordance with the manufacturer's references. The valves, valve guides and valve rubbers of the cylinder heads that are overheated may be damaged and these should also be checked.

Water or foreign body taken by the engine through the air intake & is the main reason for the piston rod to bend. Also, a hard object that enters between the piston top and the cylinder head causes the piston rod to bend.

The first reason for piston breakage is to use the bolts that have lost their properties or to tighten them incorrectly (torque). Therefore, most of the engine &manufacturers have to replace these studs after the revision. says it should. Material fatigue, excessive load and stress can cause breakage. In this case, the piston rod breaks at the weakest point. Piston rod deterioration usually occurs in the rod bearing. This is caused by insufficient lubrication or excessive heat. The arms that cannot be revised are replaced with a new one.

Crank çcan jump due to vibration during operation. If this crack is not detected, it will result in a crank fracture. Breakage usually occurs by the corner (raidus).

The reason why the crankshaft and the bearings are wrapped can be listed as insufficient lubrication or insufficient bearing clearance during assembly. When there is not enough lubrication in the engine, the heat caused by friction between the crankshaft and its bearings rises and the bearings, which are softer than the crankshaft as a result of high heat, melt as a result. It sticks to the crankshaft. The same event may occur as a result of dry running if the assembly is made without lubrication. If the crank and bearing wrapping occurred thousands of kilometers after the engine assembly, it is due to a lubrication-related failure.

Cranks work under load and vibration due to their duty. Crank cracks are usually visible in oil holes or radius areas. Crack test should be done before and after grinding cranks suitable for jumping. Incorrect grinding of the crankshaft can also cause skipping in the radius area. Balancing the crankshafts after the operation will reduce the possibility of skipping. Durability has been increased by using steel forged cranks for diesel engines and racing engines produced in modern-day power technology.

A fewçs; It may be the reason. First of all, clogging in the oil supply holes coming to the cams or insufficient lubrication may cause the wear of the cams. Incorrect valve adjustment is another factor that wears the cams. Other factors are the club that the cams press; We can say that r or glasses are broken, & the manufacturer makes a wrong production.

Camshaft breakage is usually caused by excessive force applied to the shaft; It happens with. Excessive pressure applied to the camshaft as a result of the collision of valves and pistons with each other. It causes the shaft to break. The contraction in the eccentric bearing causes the shaft to break. Another reason is that the defect in the eccentric material may cause breakage.

Long lifespan of motor bearings; The most important factor for being a good lubrication. Bearing wear is considered normal as a result of high mileage use. Engine oil that has not been changed for a long time or the wrong oil selection will damage the engine bearings. Metal-to-metal contact happens in engines that experience oil loss. Using the engine at low oil levels causes serious damage to the engine bearings. Using the engine in this way for a long time causes the bearing to wrap. Adequate lubrication is very important at the first start of the engine. If the lubrication is insufficient, over time, scratches will occur on the bearings. Therefore, at the first start of the engine, the oil warning lamp It is necessary to check that it does not leak out in time. The oil pressure in the engine is also very humid. Engine oil that cannot reach enough pressure until the bearings are scratched and eventually the bearings wrap. can go. Press & With the clock, the engine's oil pressure can be measured. In some vehicles, the oil pressure can be measured. The watch is fitted to the vehicle by the manufacturer. Other causes of bearing wrap can be listed as insufficient crank and bearing clearance after revision, faulty  crank or use of bearing.