There's a detailed write up over on mye28.com. Check the tech stickies - What can
Quote:
Originally Posted by
Kibokojoe
Over the weekend I adjusted the valves in my sons 735i. It has an m30. Discovered that one of the banjo bolts was loose and laying on the top of the head. Looked carefully at the cams and checked all of the valve clearances. Only found two valves that were a little tight and readjusted those. Reinstalled the banjo bolts with new aluminum washers and a bolt locking retainer. Have run the car several days now and there is still too much clatter. I have an m30 in my 89 535i and there is less clatter from this engine. What do I do now?
happen is that the top of the valve stem actually get cupped due to wear. Then whe you stick your feeler gauge in, it creates a bridge across the cup and gives a false reading (larger gap). I always set mine based on the gap between the cam lobe and the rocker. I set at GO 0.010 and NOGO at 0.090. This may seem tighter than spec, but the distance from CenterLine of shaft to the valve tip is LONGER than the distance from the Centerline of shaft to the contact point between the cam lobe and the rocker contact point. Therefore, small gap on rocker side creates larger gap at valve tip side. I have done it this way for my 528e and both my 535i's.
Good luck.
You're welcome, plus it is a lot easier to get your
Quote:
Originally Posted by
Bruno
Wow, this is an amazing trick.... THANKS
gauges on top of the lobe and gently adjust the eccentric on the other end. HOWEVER please note I had brain fart in describing the gap. I meant 0.090 Goes in easy, 0.010 Goes in snug, and 0.011 is a NOGO. Sorry for the confusion.