Anybody actually replace shims during 6,000 mi check-up?
Question: Just spoke with my BMW dealer about getting parts to do the valve check at 6,000 miles (i.e., crush washers). He said they had the parts, but that it is highly unlikely I really need to check the clearances at 6,000 miles. Dealer says to skip it. Said the valves on the newer 650 engine will not need adjusting until 12k miles, and that to simply check them now is a waste of money (if he does it for me) and definitely a waste of my time if I do it. My mechanic said he has yet to see a F.I. F650 engine out of spec at 6,000 miles. Said they would support me with any potential warranty issues. What has been the CG experience with this? What direction does the gap normally go with wear and tear: wider (noisy) or tighter (bad)? My dealer mechanic told me the gap would get smaller with wear, normally. This is why it will become hard to turn over when it gets too tight, especially when warmed up. If the mixture is rich, then some fouling will occur that will cause a wider gap. Scott,
