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12-03-2011, 10:02 PM | #1 |
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740iL Engine knock/noise
MY 2000 740iL has the M62 engine with the Vanos system. Engine runs fine and smooth with 110,000 miles. But when cold at first start it is normal: smooth and quiet. But once it warms up you can hear a slight knocking noise as if the there were a cam/lifter problem or maybe a wrist pin problem (engine still runs smooth). I have readjusted the Vanos timing/settings and even replaced the driver's side vanos unit but the knocking noise persists, but only when warm. Does anyoine have any thoughts or insights?
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12-23-2011, 03:39 PM | #2 |
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Drives: F30 328i Luxury - Sport Auto
Join Date: May 2011
Location: Lancashire, North West England, UK
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The 7 Series board is a lonely place... Try the N55 board in the E90 3 Series section since the engines are largely the same and there is a lot of knowledge on there!
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Gone: 2006 BMW E60 520d SE 6MT Gone: 2009 BMW E90-LCI 330d SE 6MT Current: 2012 F30 328i Luxury 8AT On Order: 2015 Audi A6 Avant Ultra, Black Edition (sorry!) |
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