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EA113 Balance Shaft delete kit - Vis Motorsport
This is an alternative to cut the cost of eventual shaft and oil pump replacement if bs seize
kit eliminates the problem
What is an oil pump? Quite simply, it’s the single most important mechanical component in making sure every crucial moving part of your engine is properly lubricated, no matter how hard you drive. Getting oil to your engine’s moving parts reduces friction to an all-but-harmless level. There’s always some friction, which is why engines wear out – eventually. But without proper oil flow from a quality oil pump, your engine is toast before you know it – very expensive toast.
It is important to check the original crankshaft gear
replace the weaker OEM VAG part number 06F105243C on the TFSi Engine.
Balance Shaft Removal
Balance shafts are commonly found in inline four cylinder engines such as the EA113 which, due to the asymmetry of their design, have an inherent second order vibration (vibrating at twice the engine RPM) which, contrary to popular belief, cannot be eliminated no matter how well the internal components are balanced. This vibration is generated because the movement of the connecting rods in an inline engine is not symmetrical throughout the crankshaft rotation; thus during a given period of crankshaft rotation, the descending and ascending pistons are not always completely opposed in their acceleration, giving rise to a net vertical inertial force twice in each revolution whose intensity increases quadratically with RPM, no matter how closely the components are matched for weight.
The EA113 found in are equipped with 2 balance shafts. The left balance shaft that's directly connected to the oil pump driven gear and the right balance shaft that's driven by the balance shaft gear over the oil pump sprocket. Two balance shafts rotate in opposite directions at twice engine speed. Equally sized eccentric weights on these shafts are sized and phased so that the inertial reaction to their counter-rotation cancels out in the horizontal plane, but adds in the vertical plane, giving a net force equal to but 180 degrees out of phase with the undesired second-order vibration of the basic engine, thereby canceling it. The basic problem presented by the concept is adequately supporting and lubricating a part rotating at twice engine speed at the higher RPMs where the second order vibration becomes unacceptable.