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Camshaft set Components

The camshaft kit is a comprehensive set of components that are recommended to be changed when performing the repair. The individual components of the valve opening system as well as the control of Unit Injector System (UIS) are: Camshaft, camshaft bearings, hydraulic...

Unit Injector System (UIS) – pot tappet and valve clearance

Technique

The hydraulic pot tappet is a part of the timing mechanism. The tappet working surface is ground and hardened, in some cases the tappet walls are equipped with a black protective lacquer (similar to the pistons). The transfer of the stroke of the cam to the valve is...

Hydraulic tappets – causes and consequences of the damage

Technique, Tips and tricks

If there is an excessive wear on the hydraulic tappets, it means that the hydraulic system components do not work as they should. All power transmission components must be working in perfect synchronicity and under optimal working conditions. If any of the components...

Specifics of Unit Injector System (UIS) engines (pump – nozzle) system

Technique

As part of the trend towards reducing exhaust emissions, a diesel injection method, known as Unit Injector System (UIS), has been developed for diesel engines of previous generations. It is no longer installed in new engines these days; however there are still a lot...

How to disassemble and assemble the camshafts

Guides

When disassembling and assembling the camshaft, it is always necessary to strictly follow the manufacturer’s instructions for the particular engine type (e.g. according to the procedure in a workshop manual). The following is particularly important (based on the...

Camshaft set Components

Unit Injector System (UIS) – pot tappet and valve clearance

Hydraulic tappets – causes and consequences of the damage

Specifics of Unit Injector System (UIS) engines (pump – nozzle) system

How to disassemble and assemble the camshafts

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