{"id":454,"date":"2020-02-11T10:45:53","date_gmt":"2020-02-11T09:45:53","guid":{"rendered":"http:\/\/vw-kern.at\/blog\/?p=454"},"modified":"2020-05-22T17:07:55","modified_gmt":"2020-05-22T15:07:55","slug":"verschlissene-gehaeuse-verzahnung-durch-tdi-motoren","status":"publish","type":"post","link":"http:\/\/vw-kern.at\/blog\/en\/2020\/02\/11\/verschlissene-gehaeuse-verzahnung-durch-tdi-motoren\/","title":{"rendered":"Damaged splines of VC housing by TDI engines?"},"content":{"rendered":"

Meanwhile it\u2019s common, that the splines of the VC housing are a weak point and often worn out. Effects of worn splines are not serious in the first place (except for some tictac noises), but at some point the gearing is totally sheared off and the 4WD becomes a 2WD.<\/p>\n\n\n\n
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Good splines<\/figcaption><\/figure><\/td>\n
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Damaged splines<\/figcaption><\/figure><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Practically we haven\u2019t seen such an example yet, but we will probably see such damage in the next years.<\/p>\n

It was suspected that high-torque TDI engines are responsible for fast wear of splines. Until recently, we only visually examined the splines and “felt” the backlash by hand \u2013 not a satisfying situation. That\u2019s why we developed a special measuring tool, which measures the backlash in degree of arc. Now we got reliable data for the first time:<\/p>\n\n\n\n
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Results:<\/u><\/strong><\/p>\n

From our tested sample of 67 VC\u2019s have got 7 a backlash greater than 1\u00b0 – what we see as the upper wear limit. The minimum value is around 0,4\u00b0 btw.<\/p>\n\n\n\n
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