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Technical content from Motorservice International
Oil pumps and water pumps for Scania and Volvo trucks
Motorservice International
The water pump is the central component in the coolant circuit. It conveys the cooling liquid in the sealed engine cooling system. Variable coolant pumps provide demand-based engine cooling, reduce power requirements and cut frictional losses, fuel consumption and pollutant emissions. READ MORE
Damage from overheating
Motorservice International
Why are there seizure marks all over the piston crown? What happens when the oil injection nozzle is bent or faulty, resulting in insufficient cooling of the piston from below? How does piston skirt seizure on both sides appear? You can find out here. READ MORE
Cooled exhaust gas recirculation
Motorservice International
Ever more stringent emission regulations require a constant improvement in pollutant reduction methods. For diesel engines this particularly applies to a further reduction in nitrogen oxides. Cooled exhaust gas recirculation can play a significant role in this context. READ MORE
Sealing problems and piston ring damage
Motorservice International
After damage due to dirt, damage and wear caused by fuel flooding is the second most common cause of damage on piston rings. In the event of fuel flooding, the oil film on the cylinder wall suffers so significantly that the piston rings rub metal on metal against the cylinder wall and quickly lose radial wall thickness. READ MORE
EGR Fault due to foreign bodies from the exhaust tract
Motorservice International
Foreign bodies from the catalytic converter area can be sucked through the lines of the exhaust gas recirculation due to pulsations in the exhaust tract or the vacuum in the intake air system of petrol engines. READ MORE
Mounting and disassembling piston rings
Motorservice International
Can you fit piston rings by hand? What can happen? Why should the groove side, under no circumstances, be damaged when removing carbon? How, and in what sequence, should piston rings be installed? Find out here. READ MORE
Piston damage — recognizing and rectifying
Motorservice International
The process of assessing engine damage is similar to a medical assessment in that it requires an all-encompassing approach to identify the cause(s) of a problem, which may not always be clear and obvious. It's not at all a rare occurrence for repairs to be carried out and then for the same damage to occur again and the same components to fail again because, although the damaged parts were replaced, nothing was done to eliminate the cause of the problem. READ MORE