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

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...

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...

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

Hydraulic tappets – causes and consequences of the damage

How to disassemble and assemble the camshafts

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