Hi All,
I have a 1983 300D which has developed a really bad shaking air breather at idle. It currently rattles against the throttle cable bracket on top of the valve cover. I have replaced the air breather mount, which was broken, and all of the rubber mounts which holds the air breather to the mount. There is obviously a root cause somewhere, which caused the old one to break. If I raise the RPMs a little (~100 or so) it smoothes out. I have just replaced all fuel filters and as part of a tune up, but have not adjusted the valves in the past 10k miles. The car runs good otherwise. I don't think the dampener bolt in the injection pump has been replaced. Will this cause the air breather to vibrate at idle? The engine itself (and the car) do not shake excessively - just the air filter canister.
Any ideas?
Thanks, Jeff